-S-chess https://en.wikipedia.org/wiki/Seirawan_chess
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-Generator variant, 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
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-Synchrone Chess: allow to anticipate en-passant capture as well :)
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-Dynamo chess
+Add problems
+https://www.janko.at/Retros/Glossary/Dynamo.htm
+https://www.janko.at/Retros/Problemkiste/N1995-04.htm#3718