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
Clubs
4 Player Chess
51.353 Membres
Fog of War
5.778 Membres
Variants
4.578 Membres
8 Player Chess
922 Membres
4PC Teams
392 Membres