+r5k1/1R5p/3N4/4pP2/1p4P1/2p5/1rP1PKP1/8 w - - 0 1
+
Simultaneous games: view Game + Simultaneous, using component (One)Game
Storage: just key ID => IDs of actual games (in indexedDB)
In Hall challenge: acceptation on sender side (who launch the game when ready --> left click [which just delete if nobody registered, with confirm box])
https://brainking.com/en/GameRules?tp=47&fwa=ArchivedGame!g=8204276$i=1
+https://musketeerchess.net/games/cerebral/rules/rules.php
+http://history.chess.free.fr/rollerball.htm
+
Squatter Chess: safe on last rank = win
Companion Chess : pieces of same nature don't attack each others
https://www.chessvariants.com/difftaking.dir/brotherhood.html
Alapo is a strategy game. Each player owns twelve abstract pieces, two each of six different kinds. Round pieces move in any of the eight directions on the 6 by 6 board; square pieces move only orthogonally and triangular pieces only diagonally. Large pieces move any distance, small pieces only one field per turn.
Opponent pieces can be eliminated by moving onto their position. The goal is to reach the opponent's base line with one of your pieces without the opponent being able to eliminate your piece in his/her next move.
+https://www.chessvariants.com/incinf.dir/bario.html
+https://www.reddit.com/r/TotemChess/comments/imi3v7/totem_rules/
+Full Cavalry : JeffK variant without jailer but 2 lancers.
+Paco-Sako : https://www.youtube.com/watch?v=tEv8TVqyZdQ + PDF rules
+https://discord.com/channels/686736099959504907/687076968046395410/735678637432635473 + Amazon Chess
+
Maybe:
https://www.chessvariants.com/diffmove.dir/asymmetric.html
https://www.chessvariants.com/play/connected-chess