FICS 1.6.2

1 files changed, 1512 insertions, 0 deletions

diff --git a/FICS/ratings.c b/FICS/ratings.c
new file mode 100644
index 0000000..007e613
--- /dev/null
+++ b/FICS/ratings.c
@@ -0,0 +1,1512 @@
+/*
+    ratings.c
+
+    fics - An internet chess server.
+    Copyright (C) 1993  Richard V. Nash
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+*/
+
+/* Revision history:
+   name		email		yy/mm/dd	Change
+   Richard Nash	              	93/10/22	Created
+   vek   leeds@math.gatech.edu  95/04/05        Glicko system, with sterr
+*/
+
+#include "stdinclude.h"
+
+#include "common.h"
+#include "playerdb.h"
+#include "ratings.h"
+#include "gamedb.h"
+#include "command.h"
+#include "comproc.h"
+#include "lists.h"
+#include "ficsmain.h"
+#include "config.h"
+#include "utils.h"
+
+/* grimm */
+#if defined(SGI)
+#else
+/* int system(char *arg); */
+/* int rewind(FILE *stream); */
+#endif
+
+
+PUBLIC double Ratings_B_Average;
+PUBLIC double Ratings_B_StdDev;
+
+PUBLIC double Ratings_S_Average;
+PUBLIC double Ratings_S_StdDev;
+
+PUBLIC double Ratings_L_Average;
+PUBLIC double Ratings_L_StdDev;
+
+PUBLIC double Ratings_W_Average;
+PUBLIC double Ratings_W_StdDev;
+
+
+PRIVATE double Rb_M = 0.0, Rb_S = 0.0, Rb_total = 0.0;
+PRIVATE int Rb_count = 0;
+
+PRIVATE double Rs_M = 0.0, Rs_S = 0.0, Rs_total = 0.0;
+PRIVATE int Rs_count = 0;
+
+PRIVATE double Rl_M = 0.0, Rl_S = 0.0, Rl_total = 0.0;
+PRIVATE int Rl_count = 0;
+
+PRIVATE double Rw_M = 0.0, Rw_S = 0.0, Rw_total = 0.0;
+PRIVATE int Rw_count = 0;
+
+/*
+PUBLIC rateStruct bestS[MAX_BEST];
+PUBLIC int numS = 0;
+PUBLIC rateStruct bestB[MAX_BEST];
+PUBLIC int numB = 0;
+PUBLIC rateStruct bestW[MAX_BEST];
+PUBLIC int numW = 0;
+*/
+
+#define MAXHIST 30
+#define LOWESTHIST 800
+PUBLIC int sHist[MAXHIST];
+PUBLIC int bHist[MAXHIST];
+PUBLIC int wHist[MAXHIST];
+PUBLIC int lHist[MAXHIST];
+
+char sdir[] = DEFAULT_STATS;
+
+PUBLIC int is_active(int Games)
+{
+  return (Games >= PROVISIONAL);
+}
+
+
+PUBLIC void rating_add(int rating, int type)
+{
+  int which;
+
+  which = (rating - LOWESTHIST) / 100;
+  if (which < 0)
+    which = 0;
+  if (which >= MAXHIST)
+    which = MAXHIST - 1;
+  if (type == TYPE_BLITZ) {
+    bHist[which] += 1;
+    Rb_count++;
+    Rb_total += rating;
+    if (Rb_count == 1) {
+      Rb_M = rating;
+    } else {
+      Rb_S = Rb_S + (rating - Rb_M) * (rating - Rb_M);
+      Rb_M = Rb_M + (rating - Rb_M) / (Rb_count);
+    }
+    Ratings_B_StdDev = sqrt(Rb_S / Rb_count);
+    Ratings_B_Average = Rb_total / (double) Rb_count;
+  } else if (type == TYPE_WILD) {	/* TYPE_WILD */
+    wHist[which] += 1;
+    Rw_count++;
+    Rw_total += rating;
+    if (Rw_count == 1) {
+      Rw_M = rating;
+    } else {
+      Rw_S = Rw_S + (rating - Rw_M) * (rating - Rw_M);
+      Rw_M = Rw_M + (rating - Rw_M) / (Rw_count);
+    }
+    Ratings_W_StdDev = sqrt(Rw_S / Rw_count);
+    Ratings_W_Average = Rw_total / (double) Rw_count;
+  } else if (type == TYPE_LIGHT) {       /* TYPE_LIGHT */
+    lHist[which] += 1;
+    Rl_count++;
+    Rl_total += rating;
+    if (Rl_count == 1) {
+      Rl_M = rating;
+    } else {
+      Rl_S = Rl_S + (rating - Rl_M) * (rating - Rl_M);
+      Rl_M = Rl_M + (rating - Rl_M) / (Rl_count);
+    }
+    Ratings_L_StdDev = sqrt(Rl_S / Rl_count);
+    Ratings_L_Average = Rl_total / (double) Rl_count;
+
+/* Insert bughouse stuff */
+  } else {			/* TYPE_STAND */
+    sHist[which] += 1;
+    Rs_count++;
+    Rs_total += rating;
+    if (Rs_count == 1) {
+      Rs_M = rating;
+    } else {
+      Rs_S = Rs_S + (rating - Rs_M) * (rating - Rs_M);
+      Rs_M = Rs_M + (rating - Rs_M) / (Rs_count);
+    }
+    Ratings_S_StdDev = sqrt(Rs_S / Rs_count);
+    Ratings_S_Average = Rs_total / (double) Rs_count;
+  }
+}
+
+PUBLIC void rating_remove(int rating, int type)
+{
+  int which;
+
+  which = (rating - LOWESTHIST) / 100;
+  if (which < 0)
+    which = 0;
+  if (which >= MAXHIST)
+    which = MAXHIST - 1;
+  if (type == TYPE_BLITZ) {
+    bHist[which] = bHist[which] - 1;
+    if (bHist[which] < 0)
+      bHist[which] = 0;
+    if (Rb_count == 0)
+      return;
+    Rb_count--;
+    Rb_total -= rating;
+    if (Rb_count == 0) {
+      Rb_M = 0;
+      Rb_S = 0;
+    } else {
+      Rb_M = Rb_M - (rating - Rb_M) / (Rb_count);
+      Rb_S = Rb_S - (rating - Rb_M) * (rating - Rb_M);
+       /* added this 3.11.95 foxbat */ if (Rb_S < 0)
+	Rb_S = 0;
+    }
+    if (Rb_count) {
+      Ratings_B_StdDev = sqrt(Rb_S / Rb_count);
+      Ratings_B_Average = Rb_total / (double) Rb_count;
+    } else {
+      Ratings_B_StdDev = 0;
+      Ratings_B_Average = 0;
+    }
+  } else if (type == TYPE_WILD) {	/* TYPE_WILD */
+    wHist[which] = wHist[which] - 1;
+    if (wHist[which] < 0)
+      wHist[which] = 0;
+    if (Rw_count == 0)
+      return;
+    Rw_count--;
+    Rw_total -= rating;
+    if (Rw_count == 0) {
+      Rw_M = 0;
+      Rw_S = 0;
+    } else {
+      Rw_M = Rw_M - (rating - Rw_M) / (Rw_count);
+      Rw_S = Rw_S - (rating - Rw_M) * (rating - Rw_M);
+       /* added this 3.10.95 foxbat */ if (Rw_S < 0)
+	Rw_S = 0;
+    }
+    if (Rw_count) {
+      Ratings_W_StdDev = sqrt(Rw_S / Rw_count);
+      Ratings_W_Average = Rw_total / (double) Rw_count;
+    } else {
+      Ratings_W_StdDev = 0;
+      Ratings_W_Average = 0;
+    }
+  } else if (type == TYPE_LIGHT) {       /* TYPE_LIGHT */
+    lHist[which] = lHist[which] - 1;
+    if (lHist[which] < 0)
+      lHist[which] = 0;
+    if (Rl_count == 0)
+      return;
+    Rl_count--;
+    Rl_total -= rating;
+    if (Rl_count == 0) {
+      Rl_M = 0;
+      Rl_S = 0;
+    } else {
+      Rl_M = Rl_M - (rating - Rl_M) / (Rl_count);
+      Rl_S = Rl_S - (rating - Rl_M) * (rating - Rl_M);
+       /* added this 3.10.95 foxbat */ if (Rl_S < 0)
+        Rl_S = 0;
+    }
+    if (Rl_count) {
+      Ratings_L_StdDev = sqrt(Rl_S / Rl_count);
+      Ratings_L_Average = Rl_total / (double) Rl_count;
+    } else {
+      Ratings_L_StdDev = 0;
+      Ratings_L_Average = 0;
+    }
+/* insert bughouse stuff here */
+  } else {			/* TYPE_STAND */
+    sHist[which] = sHist[which] - 1;
+    if (sHist[which] < 0)
+      sHist[which] = 0;
+    if (Rs_count == 0)
+      return;
+    Rs_count--;
+    Rs_total -= rating;
+    if (Rs_count == 0) {
+      Rs_M = 0;
+      Rs_S = 0;
+    } else {
+      Rs_M = Rs_M - (rating - Rs_M) / (Rs_count);
+      Rs_S = Rs_S - (rating - Rs_M) * (rating - Rs_M);
+       /* added this 3.10.95 foxbat */ if (Rs_S < 0)
+	Rs_S = 0;
+    }
+    if (Rs_count) {
+      Ratings_S_StdDev = sqrt(Rs_S / Rs_count);
+      Ratings_S_Average = Rs_total / (double) Rs_count;
+    } else {
+      Ratings_S_StdDev = 0;
+      Ratings_S_Average = 0;
+    }
+  }
+}
+
+PRIVATE void load_ratings(void)
+{
+  FILE *fp;
+  char fname[MAX_FILENAME_SIZE];
+  int i;
+
+  sprintf(fname, "%s/newratingsV%d_data", stats_dir,STATS_VERSION);
+  fp = fopen(fname, "r");
+  if (!fp) {
+    fprintf(stderr, "FICS: Can't read ratings data!\n");
+    return;
+  }
+  fscanf(fp, "%lf %lf %lf %d", &Rb_M, &Rb_S, &Rb_total, &Rb_count);
+  fscanf(fp, "%lf %lf %lf %d", &Rs_M, &Rs_S, &Rs_total, &Rs_count);
+  fscanf(fp, "%lf %lf %lf %d", &Rw_M, &Rw_S, &Rw_total, &Rw_count);
+  fscanf(fp, "%lf %lf %lf %d", &Rl_M, &Rl_S, &Rl_total, &Rl_count);
+
+  for (i = 0; i < MAXHIST; i++) {
+    fscanf(fp, "%d %d %d %d", &sHist[i], &bHist[i], &wHist[i], &lHist[i]);
+  }
+  fclose(fp);
+  if (Rs_count) {
+    Ratings_S_StdDev = sqrt(Rs_S / Rs_count);
+    Ratings_S_Average = Rs_total / (double) Rs_count;
+  } else {
+    Ratings_S_StdDev = 0;
+    Ratings_S_Average = 0;
+  }
+  if (Rb_count) {
+    Ratings_B_StdDev = sqrt(Rb_S / Rb_count);
+    Ratings_B_Average = Rb_total / (double) Rb_count;
+  } else {
+    Ratings_B_StdDev = 0;
+    Ratings_B_Average = 0;
+  }
+  if (Rw_count) {
+    Ratings_W_StdDev = sqrt(Rw_S / Rw_count);
+    Ratings_W_Average = Rw_total / (double) Rw_count;
+  } else {
+    Ratings_W_StdDev = 0;
+    Ratings_W_Average = 0;
+  }
+  if (Rl_count) {
+    Ratings_L_StdDev = sqrt(Rl_S / Rl_count);
+    Ratings_L_Average = Rl_total / (double) Rl_count;
+  } else {
+    Ratings_L_StdDev = 0;
+    Ratings_L_Average = 0;
+  }
+}
+
+PUBLIC void save_ratings(void)
+{
+  FILE *fp;
+  char fname[MAX_FILENAME_SIZE];
+  int i;
+
+  sprintf(fname, "%s/newratingsV%d_data", stats_dir,STATS_VERSION);
+  fp = fopen(fname, "w");
+  if (!fp) {
+    fprintf(stderr, "FICS: Can't write ratings data!\n");
+    return;
+  }
+  fprintf(fp, "%10f %10f %10f %d\n", Rb_M, Rb_S, Rb_total, Rb_count);
+  fprintf(fp, "%10f %10f %10f %d\n", Rs_M, Rs_S, Rs_total, Rs_count);
+  fprintf(fp, "%10f %10f %10f %d\n", Rw_M, Rw_S, Rw_total, Rw_count);
+  fprintf(fp, "%10f %10f %10f %d\n", Rl_M, Rl_S, Rl_total, Rl_count);
+
+  for (i = 0; i < MAXHIST; i++) {
+    fprintf(fp, "%d %d %d %d\n", sHist[i], bHist[i], wHist[i], lHist[i]);
+  }
+  fclose(fp);
+}
+
+/*
+PRIVATE void BestRemove(int p)
+{
+  int i;
+
+  for (i = 0; i < numB; i++) {
+    if (!strcmp(bestB[i].name, parray[p].name))
+      break;
+  }
+  if (i < numB) {
+    for (; i < numB - 1; i++) {
+      strcpy(bestB[i].name, bestB[i + 1].name);
+      bestB[i].rating = bestB[i + 1].rating;
+    }
+    numB--;
+  }
+  for (i = 0; i < numS; i++) {
+    if (!strcmp(bestS[i].name, parray[p].name))
+      break;
+  }
+  if (i < numS) {
+    for (; i < numS - 1; i++) {
+      strcpy(bestS[i].name, bestS[i + 1].name);
+      bestS[i].rating = bestS[i + 1].rating;
+    }
+    numS--;
+  }
+  for (i = 0; i < numW; i++) {
+    if (!strcmp(bestW[i].name, parray[p].name))
+      break;
+  }
+  if (i < numW) {
+    for (; i < numW - 1; i++) {
+      strcpy(bestW[i].name, bestW[i + 1].name);
+      bestW[i].rating = bestW[i + 1].rating;
+    }
+    numW--;
+  }
+}
+
+PRIVATE void BestAdd(int p)
+{
+  int where, j;
+
+  if ((parray[p].b_stats.rating > 0) && (parray[p].b_stats.num > 19)) {
+    for (where = 0; where < numB; where++) {
+      if (parray[p].b_stats.rating > bestB[where].rating)
+	break;
+    }
+    if (where < MAX_BEST) {
+      for (j = numB; j > where; j--) {
+	if (j == MAX_BEST)
+	  continue;
+	strcpy(bestB[j].name, bestB[j - 1].name);
+	bestB[j].rating = bestB[j - 1].rating;
+      }
+      strcpy(bestB[where].name, parray[p].name);
+      bestB[where].rating = parray[p].b_stats.rating;
+      if (numB < MAX_BEST)
+	numB++;
+    }
+  }
+  if ((parray[p].s_stats.rating > 0) && (parray[p].s_stats.num > 19)) {
+    for (where = 0; where < numS; where++) {
+      if (parray[p].s_stats.rating > bestS[where].rating)
+	break;
+    }
+    if (where < MAX_BEST) {
+      for (j = numS; j > where; j--) {
+	if (j == MAX_BEST)
+	  continue;
+	strcpy(bestS[j].name, bestS[j - 1].name);
+	bestS[j].rating = bestS[j - 1].rating;
+      }
+      strcpy(bestS[where].name, parray[p].name);
+      bestS[where].rating = parray[p].s_stats.rating;
+      if (numS < MAX_BEST)
+	numS++;
+    }
+  }
+  if ((parray[p].w_stats.rating > 0) && (parray[p].w_stats.num > 19)) {
+    for (where = 0; where < numW; where++) {
+      if (parray[p].w_stats.rating > bestW[where].rating)
+	break;
+    }
+    if (where < MAX_BEST) {
+      for (j = numW; j > where; j--) {
+	if (j == MAX_BEST)
+	  continue;
+	strcpy(bestW[j].name, bestW[j - 1].name);
+	bestW[j].rating = bestW[j - 1].rating;
+      }
+      strcpy(bestW[where].name, parray[p].name);
+      bestW[where].rating = parray[p].w_stats.rating;
+      if (numW < MAX_BEST)
+	numW++;
+    }
+  }
+}
+
+PUBLIC void BestUpdate(int p)
+{
+  BestRemove(p);
+  BestAdd(p);
+}
+
+*/
+
+PUBLIC void zero_stats(void)
+{
+  int i;
+  for (i = 0; i < MAXHIST; i++) {
+    sHist[i] = 0;
+    bHist[i] = 0;
+    wHist[i] = 0;
+    lHist[i] = 0;
+  }
+  Rb_M = 0.0, Rb_S = 0.0, Rb_total = 0.0;
+  Rb_count = 0;
+
+  Rs_M = 0.0, Rs_S = 0.0, Rs_total = 0.0;
+  Rs_count = 0;
+
+  Rw_M = 0.0, Rw_S = 0.0, Rw_total = 0.0;
+  Rw_count = 0;
+
+  Rl_M = 0.0, Rl_S = 0.0, Rl_total = 0.0;
+  Rl_count = 0;
+
+/*
+  numS = 0;
+  numB = 0;
+  numW = 0;
+*/
+}
+
+PUBLIC void rating_init(void)
+{
+  zero_stats();
+  load_ratings();
+}
+
+/* This recalculates the rating info from the player data, it can take
+   a long time! */
+PUBLIC void rating_recalc(void)
+{
+  char dname[MAX_FILENAME_SIZE];
+  int p1;
+  int c;
+  int t = time(0);
+  DIR *dirp;
+#if USE_DIRENT
+  struct dirent *dp;
+#else
+  struct direct *dp;
+#endif
+
+  fprintf(stderr, "FICS: Recalculating ratings at %s\n", strltime(&t));
+  zero_stats();
+  for (c = 'a'; c <= 'z'; c++) {
+    /* Never done as ratings server */
+    sprintf(dname, "%s/%c", player_dir, c);
+    dirp = opendir(dname);
+    if (!dirp)
+      continue;
+    for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) {
+      if (dp->d_name[0] != '.') {
+	p1 = player_new();
+	if (player_read(p1, dp->d_name)) {
+	  player_remove(p1);
+	  fprintf(stderr, "FICS: Problem reading player %s.\n", dp->d_name);
+	  continue;
+	}
+	if (parray[p1].b_stats.rating > 0) {
+	  rating_add(parray[p1].b_stats.rating, TYPE_BLITZ);
+	}
+	if (parray[p1].s_stats.rating > 0) {
+	  rating_add(parray[p1].s_stats.rating, TYPE_STAND);
+	}
+        if (parray[p1].l_stats.rating > 0) {
+          rating_add(parray[p1].l_stats.rating, TYPE_LIGHT);
+        }
+/* insert bughouse stuff here */
+	if (parray[p1].w_stats.rating > 0) {
+	  rating_add(parray[p1].w_stats.rating, TYPE_WILD);
+	}
+	player_remove(p1);
+      }
+    }
+    closedir(dirp);
+  }
+  if (Rs_count) {
+    Ratings_S_StdDev = sqrt(Rs_S / Rs_count);
+    Ratings_S_Average = Rs_total / (double) Rs_count;
+  } else {
+    Ratings_S_StdDev = 0;
+    Ratings_S_Average = 0;
+  }
+  if (Rb_count) {
+    Ratings_B_StdDev = sqrt(Rb_S / Rb_count);
+    Ratings_B_Average = Rb_total / (double) Rb_count;
+  } else {
+    Ratings_B_StdDev = 0;
+    Ratings_B_Average = 0;
+  }
+  if (Rl_count) {
+    Ratings_L_StdDev = sqrt(Rl_S / Rl_count);
+    Ratings_L_Average = Rl_total / (double) Rl_count;
+  } else {
+    Ratings_L_StdDev = 0;
+    Ratings_L_Average = 0;
+  }
+  if (Rw_count) {
+    Ratings_W_StdDev = sqrt(Rw_S / Rw_count);
+    Ratings_W_Average = Rw_total / (double) Rw_count;
+  } else {
+    Ratings_W_StdDev = 0;
+    Ratings_W_Average = 0;
+  }
+  save_ratings();
+  t = time(0);
+  fprintf(stderr, "FICS: Finished at %s\n", strltime(&t));
+}
+
+PRIVATE int Round (double x)
+{
+  return (x < 0   ?   (int) (x - 0.5)   :   (int) (x + 0.5));
+}
+
+/*  Constants for Glicko system */
+#define Gd 3.25
+#define Gr0 1720
+#define Gs0 350
+#define Gq 0.00575646273249
+#define Gp 0.000010072398601964
+
+/* End of Glicko system variables */
+
+PRIVATE double Gf(double ss)
+{
+  return (1.0 / sqrt(1.0 + Gp * ss * ss));
+}
+
+/* Confusing but economical: calculate error and attenuation function together */
+PRIVATE double GE(int r, int rr, double ss, double *fss)
+{
+  *fss = Gf(ss);
+  return (1.0 / (1.0 + pow(10.0, (rr - r) * (*fss) / 400.0)));
+}
+
+PUBLIC double current_sterr(double s, int t)
+{
+  if (t < 0)
+    t = 0;			/* this shouldn't happen */
+  return (sqrt(s * s + Gd * Gd * log(1.0 + t / 60.0)));
+}
+
+/* Calculates new rating and standard error.  By vek.  The person       */
+/*   who invented the ratings system is Mark E. Glickman, Ph.D.         */
+/*   His e-mail address is glickman@hustat.harvard.edu as of April '95. */
+/*   Postscript copy of the note I coded this from should be available  */
+/*   for ftp from ics.onenet.net, if not elsewhere.                     */
+
+PUBLIC void rating_sterr_delta(int p1, int p2, int type, int gtime, int result,
+			        int *deltarating, double *newsterr)
+{
+  statistics *p1_stats;
+  statistics *p2_stats;
+
+  double s1, s2;
+  int t1, r1, t2, r2;		/* Initial sterrs and ratings */
+  double E, fs2, denominator, GK, w;	/* Parts of fancy formulas */
+  double delta, sigma;		/* Results to return */
+
+  if (type == TYPE_BLITZ) {
+    p1_stats = &parray[p1].b_stats;
+    p2_stats = &parray[p2].b_stats;
+  } else if (type == TYPE_WILD) {
+    p1_stats = &parray[p1].w_stats;
+    p2_stats = &parray[p2].w_stats;
+  } else if (type == TYPE_LIGHT) {
+    p1_stats = &parray[p1].l_stats;
+    p2_stats = &parray[p2].l_stats;
+/* insert bughouse stuff here */
+  } else {
+    p1_stats = &parray[p1].s_stats;
+    p2_stats = &parray[p2].s_stats;
+  }
+
+  /* Calculate effective pre-game sterrs.  ltime==0 implies never had sterr. */
+
+  if (p1_stats->ltime == 0)
+    s1 = Gs0;
+  else {
+    t1 = gtime - p1_stats->ltime;
+    s1 = current_sterr(p1_stats->sterr, t1);
+    if (s1 > Gs0)
+      s1 = Gs0;
+  }
+
+  if (p2_stats->ltime == 0)
+    s2 = Gs0;
+  else {
+    t2 = gtime - p2_stats->ltime;
+    s2 = current_sterr(p2_stats->sterr, t2);
+    if (s2 > Gs0)
+      s2 = Gs0;
+  }
+
+  /* pre-game ratings */
+  if (p1_stats->rating == 0 && p1_stats->num == 0)
+    r1 = Gr0;
+  else
+    r1 = p1_stats->rating;
+
+  if (p2_stats->rating == 0 && p2_stats->num == 0)
+    r2 = Gr0;
+  else
+    r2 = p2_stats->rating;
+
+  /* now crunch */
+
+  if (result == RESULT_WIN) {
+    w = 1.0;
+  } else if (result == RESULT_DRAW) {
+    w = 0.5;
+  } else {
+    w = 0.0;
+  }
+
+  E = GE(r1, r2, s2, &fs2);	/* side effect: calculate fs2 */
+
+  denominator = 1.0 / (s1 * s1) + Gq * Gq * fs2 * fs2 * E * (1.0 - E);
+  GK = Gq * fs2 / denominator;
+
+  delta = GK * (w - E);
+  if (p1_stats->rating == 0 && p1_stats->num == 0)
+    *deltarating = Round(Gr0 + delta);
+  else
+    *deltarating = Round(delta);	/* Returned values: deltarating,
+					   newsterr */
+  sigma = 1.0 / sqrt(denominator);
+  *newsterr = (double) sigma;
+}
+
+/* vek: Next is for when we want just the delta, and not the sigma. */
+
+PUBLIC int rating_delta(int p1, int p2, int type, int result, int gtime)
+{
+  int delta;
+  double sigma;
+
+  rating_sterr_delta(p1, p2, type, gtime, result, &delta, &sigma);
+  return (delta);
+
+}
+
+PUBLIC int rating_update(int g)
+{
+  int wDelta, bDelta;
+  double wSigma, bSigma;	/* vek */
+
+  int wRes, bRes;
+  statistics *w_stats;
+  statistics *b_stats;
+
+  int gtime;
+
+  int inprogress = (g == parray[garray[g].black].game);
+  /* if this is adjudication of stored game, be quiet about ratings change */
+
+  if (garray[g].type == TYPE_BLITZ) {
+    w_stats = &parray[garray[g].white].b_stats;
+    b_stats = &parray[garray[g].black].b_stats;
+  } else if (garray[g].type == TYPE_STAND) {
+    w_stats = &parray[garray[g].white].s_stats;
+    b_stats = &parray[garray[g].black].s_stats;
+  } else if (garray[g].type == TYPE_WILD) {
+    w_stats = &parray[garray[g].white].w_stats;
+    b_stats = &parray[garray[g].black].w_stats;
+  } else if (garray[g].type == TYPE_LIGHT) {
+    w_stats = &parray[garray[g].white].l_stats;
+    b_stats = &parray[garray[g].black].l_stats;
+  } else {
+    fprintf(stderr, "FICS: Can't update untimed ratings!\n");
+    return -1;
+  }
+
+  switch (garray[g].result) {
+  case END_CHECKMATE:
+  case END_RESIGN:
+  case END_FLAG:
+  case END_ADJWIN:
+    if (garray[g].winner == WHITE) {
+      wRes = RESULT_WIN;
+      bRes = RESULT_LOSS;
+    } else {
+      bRes = RESULT_WIN;
+      wRes = RESULT_LOSS;
+    }
+    break;
+  case END_AGREEDDRAW:
+  case END_REPETITION:
+  case END_50MOVERULE:
+  case END_STALEMATE:
+  case END_NOMATERIAL:
+  case END_BOTHFLAG:
+  case END_ADJDRAW:
+  case END_FLAGNOMATERIAL:
+    wRes = bRes = RESULT_DRAW;
+    break;
+  default:
+    fprintf(stderr, "FICS: Update undecided game %d?\n", garray[g].result);
+    return -1;
+  }
+  gtime = untenths(garray[g].timeOfStart);
+  rating_sterr_delta(garray[g].white, garray[g].black,
+		     garray[g].type, gtime, wRes,
+		     &wDelta, &wSigma);
+
+  rating_sterr_delta(garray[g].black, garray[g].white,
+		     garray[g].type, gtime, bRes,
+		     &bDelta, &bSigma);
+
+  /* vek: Update time of last rated game played, for future ratings calcs. */
+  /* Kept independently for blitz and standard.                       */
+  w_stats->ltime = gtime;
+  b_stats->ltime = gtime;
+  /* end vek add 4/5/95 */
+
+  if (wRes == RESULT_WIN) {
+    w_stats->win++;
+  } else if (wRes == RESULT_LOSS) {
+    w_stats->los++;
+  } else {
+    w_stats->dra++;
+  }
+  w_stats->num++;
+  if (bRes == RESULT_WIN) {
+    b_stats->win++;
+  } else if (bRes == RESULT_LOSS) {
+    b_stats->los++;
+  } else {
+    b_stats->dra++;
+  }
+  b_stats->num++;
+  rating_remove(w_stats->rating, garray[g].type);
+  rating_remove(b_stats->rating, garray[g].type);
+
+  if (inprogress) {
+    pprintf(garray[g].white, "%s rating adjustment: %d ",
+	    ((garray[g].type == TYPE_BLITZ) ? "Blitz" : ((garray[g].type == TYPE_WILD) ? "Wild" : ((garray[g].type == TYPE_LIGHT) ? "Lightning" : "Standard"))), w_stats->rating);
+    pprintf(garray[g].black, "%s rating adjustment: %d ",
+	    ((garray[g].type == TYPE_BLITZ) ? "Blitz" : ((garray[g].type == TYPE_WILD) ? "Wild" : ((garray[g].type == TYPE_LIGHT) ? "Lightning" : "Standard"))), b_stats->rating);
+  }
+  if (wDelta < -1000) {
+    pprintf(garray[g].white, "not changed due to bug (way too small)! sorry!\n");
+    fprintf(stderr, "FICS: Got too small ratings bug for %s (w) vs. %s\n",
+	    parray[garray[g].white].login, parray[garray[g].black].login);
+  } else if (wDelta > 3000) {
+    pprintf(garray[g].white, "not changed due to bug (way too big)! sorry!\n");
+    fprintf(stderr, "FICS: Got too big ratings bug for %s (w) vs. %s\n",
+	    parray[garray[g].white].login, parray[garray[g].black].login);
+  } else {
+    w_stats->rating += wDelta;
+    w_stats->sterr = wSigma;
+  }
+
+  if (bDelta < -1000) {
+    pprintf(garray[g].black, "not changed due to bug (way too small)! sorry! ");
+    fprintf(stderr, "FICS: Got too small ratings bug for %s (b) vs. %s\n",
+	    parray[garray[g].black].login, parray[garray[g].white].login);
+  } else if (bDelta > 3000) {
+    pprintf(garray[g].black, "not changed due to bug (way too big)! sorry! ");
+    fprintf(stderr, "FICS: Got too big ratings bug for %s (b) vs. %s\n",
+	    parray[garray[g].black].login, parray[garray[g].white].login);
+  } else {
+    b_stats->rating += bDelta;
+    b_stats->sterr = bSigma;
+  }				/* error messages down to vek */
+
+  rating_add(w_stats->rating, garray[g].type);
+  rating_add(b_stats->rating, garray[g].type);
+
+  if ((w_stats->rating > w_stats->best) && (is_active(w_stats->num))) {
+    w_stats->best = w_stats->rating;
+    w_stats->whenbest = time(NULL);
+  }
+  if ((b_stats->rating > b_stats->best) && (is_active(b_stats->num))) {
+    b_stats->best = b_stats->rating;
+    b_stats->whenbest = time(NULL);
+  }
+/* Ratings are now saved to disk after each game */
+  player_save(garray[g].white);
+  player_save(garray[g].black);
+
+/* foxbat 3.11.95 */
+  if (garray[g].type == TYPE_BLITZ) {
+    Rb_count++;
+    Rb_total += (w_stats->rating + b_stats->rating) / 2.0;
+  } else if (garray[g].type == TYPE_STAND) {
+    Rs_count++;
+    Rs_total += (w_stats->rating + b_stats->rating) / 2.0;
+  } else if (garray[g].type == TYPE_LIGHT) {
+    Rl_count++;
+    Rl_total += (w_stats->rating + b_stats->rating) / 2.0;
+  } else if (garray[g].type == TYPE_WILD) {
+    Rw_count++;
+    Rw_total += (w_stats->rating + b_stats->rating) / 2.0;
+  }
+/* end add */
+  if (inprogress) {
+    pprintf(garray[g].white, "--> %d\n", w_stats->rating);
+    pprintf(garray[g].black, "--> %d\n", b_stats->rating);
+  }
+  save_ratings();
+  UpdateRank(garray[g].type, parray[garray[g].white].name,
+	     w_stats, parray[garray[g].white].name);
+  UpdateRank(garray[g].type, parray[garray[g].black].name,
+	     b_stats, parray[garray[g].black].name);
+  return 0;
+}
+
+PUBLIC int com_assess(int p, param_list param)
+{
+  int p1 = p, p2, nowtime;
+  int p1_connected = 1, p2_connected = 1;
+  int win1, draw1, loss1;
+  double newsterr1;
+  int win2, draw2, loss2;
+  double newsterr2;
+
+  nowtime = time(0);
+
+/* Hawk: Now assess can be used with players not  */
+/*       logged on -- I wonder if anyone doesn't  */
+/*       get just a bit confused here :)          */
+
+  if (param[0].type == TYPE_NULL) {
+    if (parray[p].game < 0) {
+      pprintf(p, "You are not playing a game.\n");
+      return COM_OK;
+    } else if (garray[parray[p].game].status == GAME_EXAMINE) {
+      if (!strcmp(garray[parray[p].game].black_name, parray[p].name)) {
+	pcommand(p, "assess %s\n", garray[parray[p].game].white_name);
+      } else {
+	pcommand(p, "assess %s %s\n",
+		 garray[parray[p].game].white_name,
+		 garray[parray[p].game].black_name);
+      }
+      return COM_OK;
+    } else {
+      p2 = parray[p].opponent;
+    }
+  } else {
+    if (!FindPlayer(p, param[0].val.word, &p2, &p2_connected)) {
+      pprintf(p, "No user named \"%s\" was found.\n", param[0].val.word);
+      return COM_OK;
+    }
+    if (param[1].type != TYPE_NULL) {
+      p1 = p2;
+      p1_connected = p2_connected;
+      if (!FindPlayer(p, param[1].val.word, &p2, &p2_connected)) {
+	pprintf(p, "No user named \"%s\" was found.\n", param[1].val.word);
+	if (!p1_connected)
+	  player_remove(p1);
+	return COM_OK;
+      }
+    }
+  }
+  if (p1 == p2) {
+    pprintf(p, "You can't assess the same players.\n");
+    if (!p1_connected)
+      player_remove(p1);
+    if (!p2_connected)
+      player_remove(p2);
+    return COM_OK;
+  }
+  rating_sterr_delta(p1, p2, TYPE_BLITZ, nowtime, RESULT_WIN, &win1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_BLITZ, nowtime, RESULT_DRAW, &draw1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_BLITZ, nowtime, RESULT_LOSS, &loss1, &newsterr1);
+  rating_sterr_delta(p2, p1, TYPE_BLITZ, nowtime, RESULT_WIN, &win2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_BLITZ, nowtime, RESULT_DRAW, &draw2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_BLITZ, nowtime, RESULT_LOSS, &loss2, &newsterr2);
+
+  pprintf(p, "\nBlitz\n   %10s (%4s, RD: %5.1f)  %10s (%4s, RD: %5.1f)\n",
+	  parray[p1].name, ratstrii(parray[p1].b_stats.rating, parray[p1].registered), parray[p1].b_stats.sterr,
+	  parray[p2].name, ratstrii(parray[p2].b_stats.rating, parray[p2].registered), parray[p2].b_stats.sterr);
+  pprintf(p, "Win :         %4d                         %4d\n", win1, loss2);
+  pprintf(p, "Draw:         %4d                         %4d\n", draw1, draw2);
+  pprintf(p, "Loss:         %4d                         %4d\n", loss1, win2);
+  pprintf(p, "New RD:        %5.1f                        %5.1f\n", newsterr1, newsterr2);
+
+  rating_sterr_delta(p1, p2, TYPE_STAND, nowtime, RESULT_WIN, &win1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_STAND, nowtime, RESULT_DRAW, &draw1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_STAND, nowtime, RESULT_LOSS, &loss1, &newsterr1);
+  rating_sterr_delta(p2, p1, TYPE_STAND, nowtime, RESULT_WIN, &win2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_STAND, nowtime, RESULT_DRAW, &draw2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_STAND, nowtime, RESULT_LOSS, &loss2, &newsterr2);
+
+  pprintf(p, "\nStandard\n   %10s (%4s, RD: %5.1f)  %10s (%4s, RD: %5.1f)\n",
+	  parray[p1].name, ratstrii(parray[p1].s_stats.rating, parray[p1].registered), parray[p1].s_stats.sterr,
+	  parray[p2].name, ratstrii(parray[p2].s_stats.rating, parray[p2].registered), parray[p2].s_stats.sterr);
+  pprintf(p, "Win :         %4d                         %4d\n", win1, loss2);
+  pprintf(p, "Draw:         %4d                         %4d\n", draw1, draw2);
+  pprintf(p, "Loss:         %4d                         %4d\n", loss1, win2);
+  pprintf(p, "New RD:        %5.1f                        %5.1f\n", newsterr1, newsterr2);
+
+  rating_sterr_delta(p1, p2, TYPE_LIGHT, nowtime, RESULT_WIN, &win1, &newsterr1);  rating_sterr_delta(p1, p2, TYPE_LIGHT, nowtime, RESULT_DRAW, &draw1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_LIGHT, nowtime, RESULT_LOSS, &loss1, &newsterr1);
+  rating_sterr_delta(p2, p1, TYPE_LIGHT, nowtime, RESULT_WIN, &win2, &newsterr2);  rating_sterr_delta(p2, p1, TYPE_LIGHT, nowtime, RESULT_DRAW, &draw2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_LIGHT, nowtime, RESULT_LOSS, &loss2, &newsterr2);
+
+  pprintf(p, "\nLightning\n   %10s (%4s, RD: %5.1f)  %10s (%4s, RD: %5.1f)\n",
+          parray[p1].name, ratstrii(parray[p1].l_stats.rating, parray[p1].registered), parray[p1].l_stats.sterr,
+          parray[p2].name, ratstrii(parray[p2].l_stats.rating, parray[p2].registered), parray[p2].l_stats.sterr);
+  pprintf(p, "Win :         %4d                         %4d\n", win1, loss2);
+  pprintf(p, "Draw:         %4d                         %4d\n", draw1, draw2);
+  pprintf(p, "Loss:         %4d                         %4d\n", loss1, win2);
+  pprintf(p, "New RD:        %5.1f                        %5.1f\n", newsterr1, newsterr2);
+
+  rating_sterr_delta(p1, p2, TYPE_WILD, nowtime, RESULT_WIN, &win1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_WILD, nowtime, RESULT_DRAW, &draw1, &newsterr1);
+  rating_sterr_delta(p1, p2, TYPE_WILD, nowtime, RESULT_LOSS, &loss1, &newsterr1);
+  rating_sterr_delta(p2, p1, TYPE_WILD, nowtime, RESULT_WIN, &win2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_WILD, nowtime, RESULT_DRAW, &draw2, &newsterr2);
+  rating_sterr_delta(p2, p1, TYPE_WILD, nowtime, RESULT_LOSS, &loss2, &newsterr2);
+
+  pprintf(p, "\nWild\n   %10s (%4s, RD: %5.1f)  %10s (%4s, RD: %5.1f)\n",
+	  parray[p1].name, ratstrii(parray[p1].w_stats.rating, parray[p1].registered), parray[p1].w_stats.sterr,
+	  parray[p2].name, ratstrii(parray[p2].w_stats.rating, parray[p2].registered), parray[p2].w_stats.sterr);
+  pprintf(p, "Win :         %4d                         %4d\n", win1, loss2);
+  pprintf(p, "Draw:         %4d                         %4d\n", draw1, draw2);
+  pprintf(p, "Loss:         %4d                         %4d\n", loss1, win2);
+  pprintf(p, "New RD:        %5.1f                        %5.1f\n", newsterr1, newsterr2);
+
+  if (!p1_connected)
+    player_remove(p1);
+  if (!p2_connected)
+    player_remove(p2);
+  return COM_OK;
+}
+
+
+PUBLIC int com_best(int p, param_list param)
+{
+  return Best(p, param, 1);
+}
+
+PUBLIC int com_hbest(int p, param_list param)
+{
+  return Best(p, param, 0);
+}
+
+#if 0
+PUBLIC int com_best(int p, param_list param)
+{
+  int i;
+
+  pprintf(p, "Standard                Blitz                   Wild\n");
+  for (i = 0; i < MAX_BEST; i++) {
+    if ((i >= numS) && (i >= numB))
+      break;
+    if (i < numS) {
+      pprintf(p, "%4d %-17s  ", bestS[i].rating, bestS[i].name);
+    } else {
+      pprintf(p, "                        ");
+    }
+    if (i < numB) {
+      pprintf(p, "%4d %-17s  ", bestB[i].rating, bestB[i].name);
+    } else {
+      pprintf(p, "                        ");
+    }
+    if (i < numW) {
+      pprintf(p, "%4d %-17s\n", bestW[i].rating, bestW[i].name);
+    } else {
+      pprintf(p, "\n");
+    }
+  }
+  return COM_OK;
+}
+#endif
+
+PUBLIC int com_statistics(int p, param_list param)
+{
+  pprintf(p, "                Standard       Blitz   Lightning        Wild\n");
+  pprintf(p, "average:         %7.2f     %7.2f     %7.2f     %7.2f\n", Ratings_S_Average, Ratings_B_Average, Ratings_L_Average, Ratings_W_Average);
+  pprintf(p, "std dev:         %7.2f     %7.2f     %7.2f     %7.2f\n", Ratings_S_StdDev, Ratings_B_StdDev, Ratings_L_StdDev, Ratings_W_StdDev);
+  pprintf(p, "number :      %7d     %7d     %7d     %7d\n", Rs_count, Rb_count,  Rl_count, Rw_count);
+  return COM_OK;
+}
+
+PUBLIC int com_fixrank(int p, param_list param)
+{
+  int p1, connected;
+
+  if (!FindPlayer(p, param[0].val.word, &p1, &connected))
+    return COM_OK;
+  UpdateRank(TYPE_BLITZ, parray[p1].name, &parray[p1].b_stats,
+	     parray[p1].name);
+  UpdateRank(TYPE_STAND, parray[p1].name, &parray[p1].s_stats,
+	     parray[p1].name);
+  UpdateRank(TYPE_WILD, parray[p1].name, &parray[p1].w_stats,
+	     parray[p1].name);
+  if (!connected)
+    player_remove(p1);
+  return COM_OK;
+}
+
+PUBLIC int com_rank(int p, param_list param)
+{
+  return DisplayRank(p, param, 1);
+}
+
+PUBLIC int com_hrank(int p, param_list param)
+{
+  return DisplayRank(p, param, 0);
+}
+
+PUBLIC int DisplayRank(int p, param_list param, int showComputers)
+{
+  int start, end, target, connected;
+  int show = SHOW_BLITZ | SHOW_STANDARD | SHOW_WILD;
+
+  if (param[0].type == TYPE_NULL) {
+    DisplayTargetRank(p, parray[p].name, show, showComputers);
+    return COM_OK;
+  } else if (isdigit(param[0].val.word[0])) {
+    end = -1;
+    sscanf(param[0].val.word, "%d-%d", &start, &end);
+    if (end > 0 && (param[1].type != TYPE_NULL))
+      show = ShowFromString(param[1].val.word);
+    DisplayRankedPlayers(p, start, end, show, showComputers);
+    return COM_OK;
+  } else {
+    target = player_search(p, param[0].val.word);
+    if (target == 0) {
+      pprintf(p, "Target %s not found.\n", param[0].val.word);
+      return COM_OK;
+    }
+    connected = (target > 0);
+    if (!connected)
+      target = -target - 1;
+    else
+      target--;
+
+    if (param[1].type != TYPE_NULL)
+      show = ShowFromString(param[1].val.word);
+    DisplayTargetRank(p, parray[target].name, show, showComputers);
+    if (!connected)
+      player_remove(target);
+    return COM_OK;
+  }
+}
+
+/* CompareStats returns 1 if s1 comes first, -1 if s2 comes first, and 0
+   if neither takes precedence. */
+#if 0
+PRIVATE int CompareStats(char *name1, statistics *s1,
+			  char *name2, statistics *s2)
+{
+  int i, l1;
+
+  if (s1 == NULL)
+    if (s2 == NULL)
+      return 0;
+    else
+      return -1;
+  else if (s2 == NULL)
+    return 1;
+
+  if (s1->rating > s2->rating)
+    return 1;
+  if (s1->rating < s2->rating)
+    return -1;
+  l1 = strlen(name1);
+  for (i = 0; i < l1; i++) {
+    if (name2[i] == '\0')
+      return -1;
+    if (tolower(name1[i]) < tolower(name2[i]))
+      return 1;
+    if (tolower(name1[i]) > tolower(name2[i]))
+      return -1;
+  }
+  if (name2[i] != '\0')
+    return 1;
+/*  if (s1->sterr < s2->sterr) return 1;
+  if (s1->sterr > s2->sterr) return -1;
+  if (s1->num > s2->num) return 1;
+  if (s1->num < s2->num) return -1;
+*/
+  fprintf(stderr, "Duplicate entries found: %s.\n", name1);
+  return 0;
+}
+#endif
+PRIVATE int GetRankFileName(char *out, int type)
+{
+  switch (type) {
+    case TYPE_BLITZ:
+	sprintf(out, "%s/rank.blitz", sdir);
+	return type;
+    case TYPE_STAND:
+	sprintf(out, "%s/rank.std", sdir);
+	return type;
+    case TYPE_WILD:
+	sprintf(out, "%s/rank.wild", sdir);
+	return type;
+    default:
+	return -1;
+  }
+}
+
+/* loon: Turning this off 28 Oct 1995 (temporary:)) since we're lagged
+   into outer space */
+PUBLIC void UpdateRank(int type, char *addName,
+		        statistics *sNew, char *delName)
+{}
+
+#if 0
+PUBLIC void UpdateRank(int type, char *addName,
+		        statistics *sNew, char *delName)
+{
+  char RankFile[MAX_FILENAME_SIZE];
+  char TmpRankFile[MAX_FILENAME_SIZE];
+  char line[MAX_RANK_LINE];
+  char login[MAX_LOGIN_NAME];
+  char command[MAX_STRING_LENGTH];
+  int comp;
+  statistics sCur;
+  FILE *fp;
+  FILE *fptemp;
+
+  if (GetRankFileName(RankFile, type) < 0)
+    return;
+  fp = fopen(RankFile, "r");
+  if (fp == NULL) {
+    fprintf(stderr, "Can't open rank file to update.\n");
+    return;
+  }
+  sprintf(TmpRankFile, "%s/tmpRank", sdir);
+  fptemp = fopen(TmpRankFile, "w");
+  if (fptemp == NULL) {
+    fprintf (stderr, "Unable to open rank file for updating.\n");
+    return;
+  }
+  while (fgets(line, MAX_RANK_LINE - 1, fp)) {
+    sscanf(line, "%s %d %d %d", login, &sCur.rating,
+	   &sCur.num, &comp);
+    if (delName != NULL && !strcasecmp(delName, login)) {	/* Kill name. */
+      delName = NULL;
+      continue;
+    }
+    if (addName != NULL && CompareStats(addName, sNew, login, &sCur) > 0) {
+      int computer = in_list(-1, L_COMPUTER, addName);
+      fprintf(fptemp, "%s %d %d %d\n", addName, sNew->rating,
+	      sNew->num, computer);
+      addName = NULL;
+    }
+    fprintf(fptemp, "%s %d %d %d\n", login, sCur.rating, sCur.num, comp);
+  }
+  fclose(fptemp);
+  fclose(fp);
+
+  sprintf(command, "mv %s %s", TmpRankFile, RankFile);
+  system(command);
+}
+#endif
+
+PRIVATE void DisplayRankHead(int p, int show)
+{
+  char Line[MAX_STRING_LENGTH];
+
+  Line[0] = '\0';
+  if (CheckFlag(show, SHOW_BLITZ))
+    strcat(Line, "         Blitz          ");
+  if (CheckFlag(show, SHOW_STANDARD))
+    strcat(Line, "       Standard          ");
+  if (CheckFlag(show, SHOW_WILD))
+    strcat(Line, "          Wild");
+  pprintf(p, "%s\n\n", Line);
+}
+
+PRIVATE int CountRankLine(int countComp, char *loginName,
+			   int num, int is_computer)
+{
+  if (loginName == NULL || loginName[0] == '\0')
+    return 0;
+  return (countComp || !is_computer) && (is_active(num));
+}
+
+PRIVATE int GetRank(FILE * fp, char *target, int countComp)
+{
+  int count = 0;
+  int nGames, is_computer;
+  int playerFound = 0;
+  char line[MAX_RANK_LINE];
+  char login[MAX_LOGIN_NAME];
+
+  while (fgets(line, MAX_RANK_LINE - 1, fp) && !playerFound) {
+    sscanf(line, "%s %*d %d %d", login, &nGames, &is_computer);
+    if ((playerFound = !strcasecmp(login, target))
+	|| CountRankLine(countComp, login, nGames, is_computer))
+      count++;
+  }
+  return (playerFound ? count : -1);
+}
+
+PRIVATE void PositionFilePtr(FILE * fp, int count, int *last,
+			      int *nTied, int showComp)
+{
+  int i, rating, nGames, is_computer;
+  char login[MAX_LOGIN_NAME];
+  char line[MAX_RANK_LINE];
+
+  if (fp == NULL)
+    return;
+  rewind(fp);
+  for (i = 1; i < count; i++) {
+    do {
+      fgets(line, MAX_RANK_LINE - 1, fp);
+      if (feof(fp))
+	break;
+      sscanf(line, "%s %d %d %d", login, &rating, &nGames, &is_computer);
+    } while (!CountRankLine(showComp, login, nGames, is_computer));
+    if (rating != *last) {
+      *nTied = 1;
+      *last = rating;
+    } else
+      (*nTied)++;
+  }
+}
+
+PRIVATE int ShowRankEntry(int p, FILE * fp, int count, int comp,
+			   char *target, int *lastRating, int *nTied)
+{
+  char newLine[MAX_RANK_LINE];
+  char login[MAX_LOGIN_NAME];
+  int rating, findable, nGames, is_comp;
+
+  findable = (count > 0) && !feof(fp);
+  if (findable) {
+    do {
+      fgets(newLine, MAX_RANK_LINE - 1, fp);
+      if (feof(fp))
+	findable = 0;
+      else if (newLine[0] != '\0')
+	sscanf(newLine, "%s %d %d %d",
+	       login, &rating, &nGames, &is_comp);
+      else
+	login[0] = '\0';
+    } while (!CountRankLine(comp, login, nGames, is_comp) && findable
+	     && strcasecmp(login, target));
+  }
+  if (findable) {
+    if (!strcasecmp(login, target)
+	&& !CountRankLine(comp, login, nGames, is_comp)) {
+      pprintf_highlight(p, "----  %-12.12s %4s", login, ratstr(rating));
+      pprintf(p, "  ");
+      return 0;
+    } else if (*lastRating == rating && *nTied < 1) {
+      pprintf(p, "      ");
+      if (!strcasecmp(login, target))
+	pprintf_highlight(p, "%-12.12s %4s", login, ratstr(rating));
+      else
+	pprintf(p, "%-12.12s %4s", login, ratstr(rating));
+      pprintf(p, "  ");
+      return 1;
+    } else {
+      if (*nTied >= 1) {
+	if (*lastRating == rating)
+	  count -= *nTied;
+	*nTied = -1;
+      }
+      if (!strcasecmp(login, target))
+	pprintf_highlight(p, "%4d. %-12.12s %4s",
+			  count, login, ratstr(rating));
+      else
+	pprintf(p, "%4d. %-12.12s %4s",
+		count, login, ratstr(rating));
+      pprintf(p, "  ");
+      *lastRating = rating;
+      return 1;
+    }
+  } else {
+    pprintf(p, "%25s", "");
+    return 1;
+  }
+}
+
+PRIVATE int CountAbove(int num, int blitz, int std, int wild, int which)
+{
+  int max = blitz;
+
+  if (max < std)
+    max = std;
+  if (max < wild)
+    max = wild;
+  return (max <= (num + 1) / 2 ? max - 1 : (num + 1) / 2);
+}
+
+PRIVATE int ShowRankLines(int p, FILE * fb, FILE * fs, FILE * fw, int bCount,
+        int sCount, int wCount, int n, int showComp, int show, char *target)
+{
+  int lastBlitz = 9999, nTiedBlitz = 0;
+  int lastStd = 9999, nTiedStd = 0;
+  int lastWild = 9999, nTiedWild = 0;
+  int i;
+
+  if (n <= 0)
+    return 0;
+  if (CheckFlag(show, SHOW_BLITZ)) {
+    PositionFilePtr(fb, bCount, &lastBlitz, &nTiedBlitz, showComp);
+    if (feof(fb))
+      ClearFlag(show, SHOW_BLITZ);
+  }
+  if (CheckFlag(show, SHOW_STANDARD)) {
+    PositionFilePtr(fs, sCount, &lastStd, &nTiedStd, showComp);
+    if (feof(fs))
+      ClearFlag(show, SHOW_STANDARD);
+  }
+  if (CheckFlag(show, SHOW_WILD)) {
+    PositionFilePtr(fw, wCount, &lastWild, &nTiedWild, showComp);
+    if (feof(fw))
+      ClearFlag(show, SHOW_WILD);
+  }
+  if (!CheckFlag(show, SHOW_BLITZ | SHOW_STANDARD | SHOW_WILD))
+    return 0;
+  DisplayRankHead(p, show);
+
+  for (i = 0; i < n && show; i++) {
+    if (CheckFlag(show, SHOW_BLITZ))
+      bCount += ShowRankEntry(p, fb, bCount, showComp, target,
+			      &lastBlitz, &nTiedBlitz);
+    if (CheckFlag(show, SHOW_STANDARD))
+      sCount += ShowRankEntry(p, fs, sCount, showComp, target,
+			      &lastStd, &nTiedStd);
+    if (CheckFlag(show, SHOW_WILD))
+      wCount += ShowRankEntry(p, fw, wCount, showComp, target,
+			      &lastWild, &nTiedWild);
+    pprintf(p, "\n");
+  }
+  return 1;
+}
+
+PUBLIC int DisplayTargetRank(int p, char *target, int show, int showComp)
+{
+  int numToShow = 20;
+  int blitzRank = -1, blitzCount;
+  int stdRank = -1, stdCount;
+  int wildRank = -1, wildCount;
+  int numAbove;
+  char Path[MAX_FILENAME_SIZE];
+  FILE *fb = NULL, *fs = NULL, *fw = NULL;
+
+  if (CheckFlag(show, SHOW_BLITZ)) {
+    GetRankFileName(Path, TYPE_BLITZ);
+    fb = (FILE *) fopen(Path, "r");
+    if (fb != NULL)
+      blitzRank = GetRank(fb, target, showComp);
+    if (blitzRank < 0)
+      ClearFlag(show, SHOW_BLITZ);
+  }
+  if (CheckFlag(show, SHOW_STANDARD)) {
+    GetRankFileName(Path, TYPE_STAND);
+    fs = (FILE *) fopen(Path, "r");
+    if (fs != NULL)
+      stdRank = GetRank(fs, target, showComp);
+    if (stdRank < 0)
+      ClearFlag(show, SHOW_STANDARD);
+  }
+  if (CheckFlag(show, SHOW_WILD)) {
+    GetRankFileName(Path, TYPE_WILD);
+    if (CheckFlag(show, SHOW_WILD))
+      fw = (FILE *) fopen(Path, "r");
+    if (fw != NULL)
+      wildRank = GetRank(fw, target, showComp);
+    if (wildRank < 0)
+      ClearFlag(show, SHOW_WILD);
+  }
+  if (!CheckFlag(show, SHOW_BLITZ | SHOW_STANDARD | SHOW_WILD)) {
+    pprintf(p, "No ratings to show.\n");
+    if (fb != NULL) fclose(fb);
+    if (fs != NULL) fclose(fs);
+    if (fw != NULL) fclose(fw);
+    return (0);
+  }
+  numAbove = CountAbove(numToShow, blitzRank, stdRank, wildRank, show);
+  blitzCount = blitzRank - numAbove;
+  stdCount = stdRank - numAbove;
+  wildCount = wildRank - numAbove;
+
+  ShowRankLines(p, fb, fs, fw, blitzCount, stdCount, wildCount,
+		numToShow, showComp, show, target);
+  if (fb != NULL) fclose(fb);
+  if (fs != NULL) fclose(fs);
+  if (fw != NULL) fclose(fw);
+  return (1);
+}
+
+PUBLIC int DisplayRankedPlayers(int p, int start, int end,
+				 int show, int showComp)
+{
+  int num = end - start + 1;
+  FILE *fb = NULL, *fs = NULL, *fw = NULL;
+  char Path[MAX_FILENAME_SIZE];
+
+  if (start <= 0)
+    start = 1;
+  if (num <= 0)
+    return 0;
+  if (num > 100)
+    num = 100;
+  if (CheckFlag(show, SHOW_BLITZ)) {
+    GetRankFileName(Path, TYPE_BLITZ);
+    fb = (FILE *) fopen(Path, "r");
+    if (fb == NULL)
+      ClearFlag(show, SHOW_BLITZ);
+  }
+  if (CheckFlag(show, SHOW_STANDARD)) {
+    GetRankFileName(Path, TYPE_STAND);
+    fs = (FILE *) fopen(Path, "r");
+    if (fs == NULL)
+      ClearFlag(show, SHOW_STANDARD);
+  }
+  if (CheckFlag(show, SHOW_WILD)) {
+    GetRankFileName(Path, TYPE_WILD);
+    fw = (FILE *) fopen(Path, "r");
+    if (fw == NULL)
+      ClearFlag(show, SHOW_WILD);
+  }
+  ShowRankLines(p, fb, fs, fw, start, start, start,
+		num, showComp, show, "");
+  if (fb)
+    fclose(fb);
+  if (fs)
+    fclose(fs);
+  if (fw)
+    fclose(fw);
+  return 1;
+}
+
+PUBLIC int ShowFromString(char *s)
+{
+  int i, len = strlen(s);
+  int show = 0;
+
+  if (s == NULL || s[0] == '\0')
+    return SHOW_BLITZ | SHOW_STANDARD | SHOW_WILD;
+  for (i = 0; i < len; i++) {
+    switch (s[i]) {
+    case 'b':
+      SetFlag(show, SHOW_BLITZ);
+      break;
+    case 's':
+      SetFlag(show, SHOW_STANDARD);
+      break;
+    case 'w':
+      SetFlag(show, SHOW_WILD);
+      break;
+    }
+  }
+  return (show);
+}
+
+PUBLIC int Best(int p, param_list param, int ShowComp)
+{
+  int show = SHOW_BLITZ | SHOW_STANDARD | SHOW_WILD;
+
+  if (param[0].type != TYPE_NULL)
+    show = ShowFromString(param[0].val.word);
+
+  DisplayRankedPlayers(p, 1, 20, show, ShowComp);
+  return COM_OK;
+}