What if the 2nd move was 2. Kc5 Kc7? Why would black move purposely so he can lose the match?
True, 2. ... Kc7 delays white's win by three moves. White has a faster win (correct me if I'm wrong) with:
Oh, and to the original question. Can't think of a meaningful puzzle like that, except white (black) to move and draw. But puzzles with a Rundlauf (round trip) motif (a piece eventually returns to its starting square) are not rare.
Not only can there be problems with repeated moves, there can be forced mates requiring a triple repetition of the position.
N. Petrovic, The Problemist 1959
Mate in 8
@BiggDoggProblem: Beautiful puzzle, haven't seen that one before. I didn't think about castling rights. Then the repetitions have purpose.
For some reason I always forget castling in problem chess.
Impressive problem BigDog, I love it. How do you even find these kind of puzzles?
Luckily for us, it is possible to do three-move-repetition, because if the opposing player loses castling rights, the repetition is not the same :)
Impressive problem BigDog, I love it. How do you even find these kind of puzzles?
I have studied problems for years (mostly solving and occasionally composing), and I often talk with other enthusiasts in the problem community. Someone showed me this a long time ago. This problem is the reason that FIDE's 3rd repetition rule states that the rights must also be the same for it to count as a repetition.
I was just going to say the same. It's not really a repeated position since the castling rights differ in each iteration.
Clever, nonetheless. Truly repeated positions wouldn't really make sense in a puzzle unless the goal is to draw. Then there are countless examples of forced threefold as a drawing tactic.
Clever, nonetheless. Truly repeated positions wouldn't really make sense in a puzzle unless the goal is to draw. Then there are countless examples of forced threefold as a drawing tactic.
The story I heard is that Petrovic made this problem to expose a flaw in the rule, and they changed it after the problem became known.
I'm interested to know if there is a puzzle with repeating moves. What I mean by this is, white to move and win. White makes a move with a piece. Black makes a move. White moves the piece back to its previous square. Black makes a different move. And so on, where black is making unique moves, with the forcing line for White being to move its own piece back and forth.
I can imagine something where there are pins on both sides, so by moving the piece a different pin is broken each time (maybe for both sides), allowing a different responding move.