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-rw-r--r--FICS/algcheck.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/FICS/algcheck.h b/FICS/algcheck.h
index 040f513..8f7bda7 100644
--- a/FICS/algcheck.h
+++ b/FICS/algcheck.h
@@ -29,6 +29,8 @@
#include "board.h"
#endif
+#define ALG_UNKNOWN -1
+
#define DROP_CHAR '@' /* used by algcheck.c and movecheck.c */
#define DROP_STR "@"