TODO

   1 PROBABLY WON'T FIX:
   2 Embedded rules language not updated when language is set (in Analyse, Game and Problems)
   3 If new live game starts in background, "new game" notify OK but not first move (not too serious however)
   4
   5 NEW VARIANTS:
   6 https://www.pychess.org/variant/manchu
   7 https://www.pychess.org/variant/dobutsu
   8 https://musketeerchess.net/games/musketeer/index.php Attention règle de promotion + SVG / PNG
   9 https://musketeerchess.net/games/cerebral/rules/rules.php : from Titan, should be easy
  10 https://www.pychess.org/variant/shogun
  11 https://www.reddit.com/r/TotemChess/comments/imi3v7/totem_rules/
  12 https://www.chessvariants.com/other.dir/fugue.html
  13 https://www.chessvariants.com/rules/spartan-chess
  14 https://www.chessvariants.com/mvopponent.dir/avalanche.html
  15 https://www.chessvariants.com/mvopponent.dir/hypnotic-chess.html
  16 https://www.chessvariants.com/mvopponent.dir/mesmer-chess.html
  17 https://brainking.com/en/GameRules?tp=47&fwa=ArchivedGame!g=8204276$i=1
  18 related to: Crown Chess: place all units on move 1 (similar to Sittuyin, more freely --> in own half-board, possible pawns on 1st rank)
  19 http://history.chess.free.fr/rollerball.htm
  20 Squatter Chess: safe on last rank = win
  21 Companion Chess : pieces of same nature don't attack each others
  22 https://www.chessvariants.com/difftaking.dir/brotherhood.html
  23 Crossing Chess = win when the king cross half-board
  24 Medusa Chess = Isardam
  25 --> à chaque déplacement, check attaques directes + découvertes autour de case de départ dans 8 directions (pas caval)
  26 Kingmaker: pawns can promote also into enemy king
  27 --> no king tracking, getCheckSquares + underCheck test all kings
  28 Eightkings: 8 pawns + 8 kings (non-royal until the last remains?)
  29 --> yes seems better, no king tracking + no underCheck/...etc when >= 2 kings
  30 https://www.jatektan.hu/_2018_vissza/2011_ig/uj2001/isakk1.html
  31 https://boardgamegeek.com/boardgame/18661/alapo
  32 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.
  33 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.
  34 https://www.chessvariants.com/incinf.dir/bario.html
  35 https://discord.com/channels/686736099959504907/687076968046395410/735678637432635473 + Amazon Chess
  36 Maybe:
  37 https://www.chessvariants.com/diffmove.dir/asymmetric.html
  38 https://www.chessvariants.com/play/connected-chess
  39 Non-chess:
  40 fanorona https://fr.wikipedia.org/wiki/Fanorona
  41 Yoté https://fr.wikipedia.org/wiki/Yot%C3%A9 http://www.zillionsofgames.com/cgi-bin/zilligames/submissions.cgi/92187?do=show;id=960
  42 gomoku, avalam, qoridor (wider lines in another color ?), draughts, draughts8
  43 (puis quand hexaboards peut-être: hexavariants + Hex)