Incorrect Draw by Threefold repetition...

And as in another thread we just had a case of someone wondering about the en passant rule, here's something I didn't know about the 3-fold repetition rule until quite recently:

Consider this scenario:

White moves a pawn two steps ahead, giving Black the option to capture the pawn en passant. But Black plays something else instead, and a few moves later, after some reshuffling, an identical position (with respect to the placement of pieces) as the one after White's pawn move is on the board. A few moves later, the position occurs a third time. White claims a draw - 3 fold repetition of positions! Black says White is wrong. The arbiter is called and agrees with Black, the position was only repeated twice and play continues.

Why? Because at the first appearance of the position, capturing e.p. was possible, making it in fact a different position than the following repetitions - although all the pieces are exactly on the same squares!

@Panagrellus said in #11:

Why? Because at the first appearance of the position, capturing e.p. was possible, making it in fact a different position than the following repetitions - although all the pieces are exactly on the same squares!

Yes, and that's true for castling rights too. Consider the Magnus - Hikaru double bongcloud draw (bet you never thought that would be instructive!).

@AsDaGo
Haha, indeed!

@ all
If, like me, you can't remember what the Magnus-Hikaru double bong cloud game was, here's the masterpiece:

After 6. Ke2, a draw by 3fold repetition can NOT be claimed, although the position is superficially identical to the ones after 2. Ke2 and 4. Ke2. The position after 2.Ke2 is different because Black still has castling rights, which are lost after 2. .. Ke7.

Fascinating! (;

I was wrong. I had to list the FEN for each position but it was repeated three times. Each time it was a different piece that moved last which made it difficult to spot

The moves don't have to repeat three times consecutively put the position. Therefore it is 3 fold as if u look a move or two before your last moves

@The_Greek_Gift19 said in #15:

The moves don't have to repeat three times consecutively put the position. Therefore it is 3 fold as if u look a move or two before your last moves

The moves don't have to repeat at all. Just the position.

Edit: Or maybe that was what you were saying if you meant "but" instead of "put".

that's what i said I accidently said "put" instead of "but"

@The_Greek_Gift19 said in #17:

that's what i said I accidently said "put" instead of "but"

Ah, sorry, I just realized that and edited my message right before I saw your reply. Sorry for the confusion. ;-)

@AsDaGo said in #18:

Ah, sorry, I just realized that and edited my message right before I saw your reply. Sorry for the confusion. ;-)
No problem :)