/data/boards/openings/
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double-d-pawn
double-e-pawn
giouco-piano
kings-gambita
kings-gambita-be7
kings-gambita-fischer
kings-gambita-nc6
kings-gambita-schallop
kings-gambitd-bc5
kings-gambitd-d6
kings-gambitd-falkbeer
kings-gambitd-nf6
kings-gambitd-nimzo
ruy-lopez