TODO

   1 Issue: embedded rules language not updated when language is set (in Analyse, Game and Problems)
   2 Also: if new live game starts in background, "new game" notify OK but not first move (not too serious however)
   3 On smartphone for Teleport, Chakart, Weiqi and some others: option "confirm moves on touch screen"
   4 (=> comme pour corr) + option "confirm moves in corr games"?
   5
   6 https://www.chessvariants.com/other.dir/fugue.html
   7 https://www.chessvariants.com/rules/spartan-chess
   8 https://www.chessvariants.com/mvopponent.dir/avalanche.html
   9 https://www.chessvariants.com/mvopponent.dir/hypnotic-chess.html
  10 https://www.chessvariants.com/mvopponent.dir/mesmer-chess.html
  11
  12 Squatter Chess: safe on last rank = win
  13 Companion Chess : pieces of same nature don't attack each others
  14 Crossing Chess = win when the king cross half-board
  15 Crown Chess: place all units on move 1 (similar to Sittuyin, more freely --> in own half-board, possible pawns on 1st rank)
  16 Medusa Chess = Isardam
  17 --> à chaque déplacement, check attaques directes + découvertes autour de case de départ dans 8 directions (pas caval)
  18
  19 Kingmaker: pawns can promote also into enemy king
  20 --> no king tracking, getCheckSquares + underCheck test all kings
  21
  22 Eightkings: 8 pawns + 8 kings (non-royal until the last remains?)
  23 --> yes seems better, no king tracking + no underCheck/...etc when >= 2 kings
  24
  25 =====
  26
  27 fanorona https://fr.wikipedia.org/wiki/Fanorona
  28 Yoté https://fr.wikipedia.org/wiki/Yot%C3%A9 http://www.zillionsofgames.com/cgi-bin/zilligames/submissions.cgi/92187?do=show;id=960
  29 gess https://en.wikipedia.org/wiki/Gess
  30 weiqi (check if landed stone captures, walk on connected components), go13, go9, gomoku, reversi
  31   first click show the stone, second click confirm the move?
  32 avalam, qoridor (wider lines in another color, vr.lines [npt static get] for this one ?), xiangqi, draughts, draughts8
  33 (puis quand hexaboards peut-être: hexavariants + Hex)
  34 Byo-yomi possible: 1h+b15,5m (15 pierres 5 minutes)