Variants Puzzles and others: https://chessvariants.training/
https://altcodeunicode.com/alt-codes-math-symbols-italic-letters/
FoW: https://www.chess.com/blog/Illingworth/fog-of-war-chess-grandmaster-strategy
some crazyhouse study for future reference: https://lichess.org/study/OHSQPWgG
俱乐部
4 Player Chess
51,011 会员
Fog of War
5,770 会员
Variants
4,523 会员
8 Player Chess
921 会员
4PC Teams
386 会员