-# Misc:
-Saw once a "double challenge" bug, one anonymous and a second one logged
-Both were asked a challenge probably, and both challenges added as different ones.
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-# New variants
-8-pieces https://www.youtube.com/watch?v=XZ8K02Da7Ps&list=PLRyjH8DPuzTBiym6lA0r84P8N0HnTtZyN&index=6&t=0s
-https://www.chessvariants.com/rules/8-piece-chess
-Eightpieces : non-symmetric
-Sym8pieces : symmetric (960)
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-Generator vatiant, called "Matrix" ?
-Peces on first rank never move but generate new pieces. Pawn don't generate.
-A generator captured and replaced by a similar piece does not generate.
-King does not generate. No castling. En passant possible?
-Goal is still checkmate.
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-Take(a)n(d)make : if capture a piece, take its power for the last of the turn and make a move like it.
-If a pawn taken: direction of the capturer.
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-+ Maxima, Interweave, Roccoco, Dynamo, Synchrone, Cannibal (force captures)
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-S-chess https://en.wikipedia.org/wiki/Seirawan_chess
+"FreeBoard", re-using a lot of Board logic, but with SVG (empty) board + SVG (empty) reserves.
+Will be used for variants with custom non-rectangular board (Hex, at least)
+Or, with other board shapes (see greenchess.net for example)