TODO

   1 Simultaneous games: view Game + Simultaneous, using component (One)Game
   2 Storage: just key ID => IDs of actual games (in indexedDB)
   3 In Hall challenge: acceptation on sender side (who launch the game when ready --> left click [which just delete if nobody registered, with confirm box])
   4
   5 Tournaments: merge with tournament.auder.net code. At the beginning, still admin / users. Later : admin / supervisors / users
   6 => recurrent tournament, eg. every sunday (late?) afternoon + wednesday evening, Discord-vote for variant?
   7
   8 Issue: embedded rules language not updated when language is set (in Analyse, Game and Problems)
   9 Also: if new live game starts in background, "new game" notify OK but not first move (not too serious however)
  10 On smartphone for Teleport, Chakart, Weiqi and some others: option "confirm moves on touch screen"
  11 (=> comme pour corr) + option "confirm moves in corr games"?
  12
  13 https://www.chessvariants.com/other.dir/fugue.html
  14 https://www.chessvariants.com/rules/spartan-chess
  15 https://www.chessvariants.com/mvopponent.dir/avalanche.html
  16 https://www.chessvariants.com/mvopponent.dir/hypnotic-chess.html
  17 https://www.chessvariants.com/mvopponent.dir/mesmer-chess.html
  18
  19 Squatter Chess: safe on last rank = win
  20 Companion Chess : pieces of same nature don't attack each others
  21 Crossing Chess = win when the king cross half-board
  22 Crown Chess: place all units on move 1 (similar to Sittuyin, more freely --> in own half-board, possible pawns on 1st rank)
  23 Medusa Chess = Isardam
  24 --> à chaque déplacement, check attaques directes + découvertes autour de case de départ dans 8 directions (pas caval)
  25
  26 Kingmaker: pawns can promote also into enemy king
  27 --> no king tracking, getCheckSquares + underCheck test all kings
  28
  29 Eightkings: 8 pawns + 8 kings (non-royal until the last remains?)
  30 --> yes seems better, no king tracking + no underCheck/...etc when >= 2 kings
  31
  32 =====
  33
  34 fanorona https://fr.wikipedia.org/wiki/Fanorona
  35 Yoté https://fr.wikipedia.org/wiki/Yot%C3%A9 http://www.zillionsofgames.com/cgi-bin/zilligames/submissions.cgi/92187?do=show;id=960
  36 gess https://en.wikipedia.org/wiki/Gess
  37 weiqi (check if landed stone captures, walk on connected components), go13, go9, gomoku, reversi
  38   first click show the stone, second click confirm the move?
  39 avalam, qoridor (wider lines in another color, vr.lines [npt static get] for this one ?), xiangqi, draughts, draughts8
  40 (puis quand hexaboards peut-être: hexavariants + Hex)
  41 Byo-yomi possible: 1h+b15,5m (15 pierres 5 minutes)