A draw?

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CraftBukkit

On playchess.com my opponnent seemed to have claimed a draw in a 5 0 Blitz rated game! He or she only had 3.6 seconds left on the clock and i had at least 20 seconds! I don't understand why it is a draw:

CraftBukkit

Sorry, about the Deep Fritz 13 Analysis in it. The only version of the game i still had!

Oraoradeki

Tbh your lucky you got the draw, White is definately WINNING here. White can force a queen trade and start moving those pawns

6 Pawns > Rook

CraftBukkit

Didn't know about that!Frown

Thanks!Wink

CraftBukkit

@Oraoradeki: My opponent only had 3.6 seconds on the clock!

omnipaul

It is a threefold repetition draw.  A common misunderstanding about the rule is that the moves must be repeated, but this is incorrect.  It is the position which must be repeated, and can be arrived by any legal sequence of moves and there can be extra moves in between, so long as the basics of the position haven't changed.

If you look at the position after moves 34. Qc5+, 36. Qc5+, and 38. Qc5+, the position is exactly the same.  It doesn't matter that one time you got out of check by moving the king and the other time you got out by moving the queen.  The position was the same after each of those three moves, so white could (and did) claim it as a draw.

ThrillerFan
omnipaul wrote:

It is a threefold repetition draw.  A common misunderstanding about the rule is that the moves must be repeated, but this is incorrect.  It is the position which must be repeated, and can be arrived by any legal sequence of moves and there can be extra moves in between, so long as the basics of the position haven't changed.

If you look at the position after moves 34. Qc5+, 36. Qc5+, and 38. Qc5+, the position is exactly the same.  It doesn't matter that one time you got out of check by moving the king and the other time you got out by moving the queen.  The position was the same after each of those three moves, so white could (and did) claim it as a draw.


There are additional factors to keep in mind.  Yes, I had a draw I remember once at moves 53, 58, and 62 over the board, another with 3 moves scattered about the 40s.  Typically, if they aren't consecutive, it will be some kind of endgame (the one I had that was 53, 58, and 62, I had White, it was KBB vs KNPPP).

However, it's more than just the fact the same position came up.  The specific rule is as follows:

A 3-Fold Repetition claim can be made if the SAME POSITION with the SAME PLAYER TO MOVE, that player having the SAME LEGAL OPTION occurs 3 times, the claim is valid.

NOTE:  The following moves are to illustrate, and is not strategy that is recommended for actual play.

Note that the exact same position has occurred after Black's 4th, Black's 6th, Black's 8th, Black's 10th, White's 13th, and White's 15th moves.  However, note the following:

On White's 5th move, he had the legal option of En Passant.  Move 7 he did not.  Therefore, 5 and 7 are not repeat of position because White doesn't have the same legal options both times.

On White's 7th move, he had the legal option of Castles.  Move 9 he did not.  Therefore, 7 and 9 are not repeat of position because White doesn't have the same legal options both times.

On Whites 11th move, he has the same position with the same player to move with the same legal options as his 9th move.  Therefore, the position after Black's 10th move is a case of 2-fold repetition.

The position repeats itself again AFTER White's 13th move.  So the position repeats again, but it's NOT the same player to move.  It's now Black to move!  This position has only occurred once. 

The position after White's 15th move is now the second time that the position has occurred with the same player to move and the same legal options (note that Black toggling his King wouldn't change the castle situation because he can't legally castle with his Knight on g8.  Therefore, moving the King doesn't dodge repetition in this case.

On White's 17th move, had he played 17.Nb1, 3 fold repetition would have occurred, but he didn't, he moved his a-pawn, and so 3-fold repetition NEVER OCCURRED in this scenario.

CraftBukkit

Thanks, understand the rule now!