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