TODO

   1 WON'T IMPLEMENT:
   2 Simultaneous games: view Game + Simultaneous, using component (One)Game
   3 Storage: just key ID => IDs of actual games (in indexedDB)
   4 In Hall challenge: acceptation on sender side (who launch the game when ready --> left click [which just delete if nobody registered, with confirm box])
   5
   6 Tournaments: merge with tournament.auder.net code. At the beginning, still admin / users. Later : admin / supervisors / users
   7 => recurrent tournament, eg. every sunday (late?) afternoon + wednesday evening, Discord-vote for variant?
   8 (Can be replaced by still separated tournament.audeR.net, using vchess credentials...)
   9
  10 Embedded rules language not updated when language is set (in Analyse, Game and Problems)
  11 If new live game starts in background, "new game" notify OK but not first move (not too serious however)
  12 On smartphone for Teleport, Chakart, Weiqi and some others: option "confirm moves on touch screen"
  13 (=> comme pour corr) + option "confirm moves in corr games"?
  14
  15 NEW VARIANTS:
  16 Xiangqi
  17 Synochess
  18 EmpireChess
  19 https://www.reddit.com/r/TotemChess/comments/imi3v7/totem_rules/
  20 https://www.chessvariants.com/other.dir/fugue.html
  21 https://www.chessvariants.com/rules/spartan-chess
  22 https://www.chessvariants.com/mvopponent.dir/avalanche.html
  23 https://www.chessvariants.com/mvopponent.dir/hypnotic-chess.html
  24 https://www.chessvariants.com/mvopponent.dir/mesmer-chess.html
  25 https://brainking.com/en/GameRules?tp=47&fwa=ArchivedGame!g=8204276$i=1
  26 related to: Crown Chess: place all units on move 1 (similar to Sittuyin, more freely --> in own half-board, possible pawns on 1st rank)
  27 https://musketeerchess.net/games/cerebral/rules/rules.php
  28 --> MusketeerChess : from Titan, should be easy
  29 http://history.chess.free.fr/rollerball.htm
  30 Squatter Chess: safe on last rank = win
  31 Companion Chess : pieces of same nature don't attack each others
  32 https://www.chessvariants.com/difftaking.dir/brotherhood.html
  33 Crossing Chess = win when the king cross half-board
  34 Medusa Chess = Isardam
  35 --> à chaque déplacement, check attaques directes + découvertes autour de case de départ dans 8 directions (pas caval)
  36 Kingmaker: pawns can promote also into enemy king
  37 --> no king tracking, getCheckSquares + underCheck test all kings
  38 Eightkings: 8 pawns + 8 kings (non-royal until the last remains?)
  39 --> yes seems better, no king tracking + no underCheck/...etc when >= 2 kings
  40 https://www.jatektan.hu/_2018_vissza/2011_ig/uj2001/isakk1.html
  41 https://boardgamegeek.com/boardgame/18661/alapo
  42 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.
  43 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.
  44 https://www.chessvariants.com/incinf.dir/bario.html
  45 Paco-Sako : https://www.youtube.com/watch?v=tEv8TVqyZdQ + PDF rules
  46 https://discord.com/channels/686736099959504907/687076968046395410/735678637432635473 + Amazon Chess
  47 Maybe:
  48 https://www.chessvariants.com/diffmove.dir/asymmetric.html
  49 https://www.chessvariants.com/play/connected-chess
  50 Non-chess:
  51 fanorona https://fr.wikipedia.org/wiki/Fanorona
  52 Yoté https://fr.wikipedia.org/wiki/Yot%C3%A9 http://www.zillionsofgames.com/cgi-bin/zilligames/submissions.cgi/92187?do=show;id=960
  53 gess https://en.wikipedia.org/wiki/Gess
  54 gomoku, reversi
  55 avalam, qoridor (wider lines in another color, vr.lines [npt static get] for this one ?), draughts, draughts8
  56 (puis quand hexaboards peut-être: hexavariants + Hex)