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Xiangqi (象棋): Chinese Chess. Links and rules for Xiangqi (Chinese Chess). (9x10, Cells: 90) (Recognized!)[All Comments] [Add Comment or Rating]
H. G. Muller wrote on 2017-09-05 UTC

Yes, repetition that doesn't violate the checking and chasing rules, or where both players violate it equally, is a draw in Chinese Chess (according to 'Asia rules'). Perpetually checking is considered a worse offense than chasing non-royals. So if both players are perpetually checking, it is a draw. If only one is perpetually checking, he will lose, even if the other is chasing other pieces, and has some check amongst his moves. And even if the checking is the only legal move he has. If both players are perpetually chasing, it is also draw. Even if one chases a Rook, and the other a Horse.

I think it is the 3rd repetition that counts, like in Chess.

Note that the rules are actually far more complex than what is stated in the article. For one, it is not just back-and-forth moving, but general repetition of positions, like in FIDE Chess. (Although, like in Chess, back-and-forth moving is by far the most common.) The game result is determined from all positions since the first occurrence of the position. Checking is easily defined, but chasing is quite complex. Basically it is creating new attacks on the same unprotected piece, where both attacking and protecting is defined in terms of legal moves. (I.e. an attack must be able to legally capture the piece, and a protector must be able to legally recapture after that.) If you force a repetition by creating new attacks alternately on different pieces, this is OK. If you alternately attack the same piece with different pieces with every move in the repeat cycle, you are in violation.

There are many refinements to this basic rule:

  • Attacks with King or Pawn do not count
  • Attacks on an unpromoted Pawn do not count
  • The ability of a piece to (legally) capture its attacker is considered equivalent to protection
  • A Rook always counts as unprotected against attacks by Horse or Cannon
  • Attacks are not considered new if they only were illegal before the move because they would not resolve an existing check