TODO

   1 Implement Wildebeest castle rules
   2 => (1, 2, 3 or 4 squares slide; randomized: may be impossible >1, but possible >4...)
   3 Fix Omega squares' color (queen on its color: need new static customization "getSquareColor()")
   4
   5 Embedded rules language not updated when language is set (in Analyse, Game and Problems)
   6 If new live game starts in background, "new game" notify OK but not first move (not too serious however)
   7 On smartphone for Teleport, Chakart, Weiqi and some others: option "confirm moves on touch screen"
   8 (=> comme pour corr) + option "confirm moves in corr games"?
   9
  10 NEW VARIANTS:
  11 https://www.pychess.org/variant/manchu
  12 https://www.pychess.org/variant/dobutsu
  13 https://www.pychess.org/variant/cambodian
  14 https://www.pychess.org/variant/makpong
  15 https://www.pychess.org/variant/janggi
  16 https://www.pychess.org/variant/kyotoshogi
  17 https://www.pychess.org/variant/hoppelpoppel
  18 https://musketeerchess.net/games/musketeer/index.php Attention règle de promotion + SVG / PNG
  19 (https://www.pychess.org/variant/shogun)
  20 Isardam (type B) : https://echekk.fr/spip.php?page=article&id_article=280
  21 https://www.reddit.com/r/TotemChess/comments/imi3v7/totem_rules/
  22 https://www.chessvariants.com/other.dir/fugue.html
  23 https://www.chessvariants.com/rules/spartan-chess
  24 https://www.chessvariants.com/mvopponent.dir/avalanche.html
  25 https://www.chessvariants.com/mvopponent.dir/hypnotic-chess.html
  26 https://www.chessvariants.com/mvopponent.dir/mesmer-chess.html
  27 https://brainking.com/en/GameRules?tp=47&fwa=ArchivedGame!g=8204276$i=1
  28 related to: Crown Chess: place all units on move 1 (similar to Sittuyin, more freely --> in own half-board, possible pawns on 1st rank)
  29 https://musketeerchess.net/games/cerebral/rules/rules.php
  30 --> MusketeerChess : from Titan, should be easy
  31 http://history.chess.free.fr/rollerball.htm
  32 Squatter Chess: safe on last rank = win
  33 Companion Chess : pieces of same nature don't attack each others
  34 https://www.chessvariants.com/difftaking.dir/brotherhood.html
  35 Crossing Chess = win when the king cross half-board
  36 Medusa Chess = Isardam
  37 --> à chaque déplacement, check attaques directes + découvertes autour de case de départ dans 8 directions (pas caval)
  38 Kingmaker: pawns can promote also into enemy king
  39 --> no king tracking, getCheckSquares + underCheck test all kings
  40 Eightkings: 8 pawns + 8 kings (non-royal until the last remains?)
  41 --> yes seems better, no king tracking + no underCheck/...etc when >= 2 kings
  42 https://www.jatektan.hu/_2018_vissza/2011_ig/uj2001/isakk1.html
  43 https://boardgamegeek.com/boardgame/18661/alapo
  44 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.
  45 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.
  46 https://www.chessvariants.com/incinf.dir/bario.html
  47 Paco-Sako : https://www.youtube.com/watch?v=tEv8TVqyZdQ + PDF rules
  48 https://discord.com/channels/686736099959504907/687076968046395410/735678637432635473 + Amazon Chess
  49 Maybe:
  50 https://www.chessvariants.com/diffmove.dir/asymmetric.html
  51 https://www.chessvariants.com/play/connected-chess
  52 Non-chess:
  53 fanorona https://fr.wikipedia.org/wiki/Fanorona
  54 Yoté https://fr.wikipedia.org/wiki/Yot%C3%A9 http://www.zillionsofgames.com/cgi-bin/zilligames/submissions.cgi/92187?do=show;id=960
  55 gess https://en.wikipedia.org/wiki/Gess
  56 gomoku, reversi
  57 avalam, qoridor (wider lines in another color, vr.lines [npt static get] for this one ?), draughts, draughts8
  58 (puis quand hexaboards peut-être: hexavariants + Hex)