TODO

   1 # New variants
   2 Landing pieces from empty board:
   3 https://www.chessvariants.com/diffsetup.dir/unachess.html
   4 Parachute v1 & 2
   5
   6 Generator variant, called "Matrix" ?
   7 Peces on first rank never move but generate new pieces. Pawn don't generate.
   8 A generator captured and replaced by a similar piece does not generate.
   9 King does not generate. No castling. En passant possible?
  10 Goal is still checkmate.
  11
  12 Take(a)n(d)make : if capture a piece, take its power for the last of the turn and make a move like it.
  13 If a pawn taken: direction of the capturer.
  14
  15 Maxima, Interweave, Roccoco
  16
  17 Synchrone Chess: allow to anticipate en-passant capture as well :)
  18
  19 Dynamo chess
  20
  21 Omega chess (ask first)