-https://www.chessvariants.com/mvopponent.dir/avalanche.html
-https://www.chessvariants.com/mvopponent.dir/hypnotic-chess.html
-https://www.chessvariants.com/mvopponent.dir/mesmer-chess.html
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-https://brainking.com/en/GameRules?tp=47&fwa=ArchivedGame!g=8204276$i=1
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-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
-Crossing Chess = win when the king cross half-board
-Crown Chess: place all units on move 1 (similar to Sittuyin, more freely --> in own half-board, possible pawns on 1st rank)
-Medusa Chess = Isardam
---> à chaque déplacement, check attaques directes + découvertes autour de case de départ dans 8 directions (pas caval)
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-Kingmaker: pawns can promote also into enemy king
---> no king tracking, getCheckSquares + underCheck test all kings
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-Eightkings: 8 pawns + 8 kings (non-royal until the last remains?)
---> yes seems better, no king tracking + no underCheck/...etc when >= 2 kings
+https://www.chessvariants.com/incinf.dir/bario.html
+ https://www.chessvariants.com/index/listcomments.php?order=DESC&itemid=Bario
+ https://www.bario-chess-checkers-chessphotography-spaceart.de/
+ https://le-cdn.website-editor.net/20ef5f800ea646c29f6852cfc5ceda07/dms3rep/multi/opt/BAR028-e15a849c-960w.jpg