Bug Report: crazyhouse threefold repetition

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CompassionFatigue

https://www.chess.com/game/live/118830014397

This was called a draw even though it shouldn't have been. The position on the board repeated 3 times, but the piece banks were different each of those times. How can I win 2 knights for 2 pawns and that's called a repetition? I'm winning material. 

Martin_Stahl
CompassionFatigue wrote:

https://www.chess.com/game/live/118830014397

This was called a draw even though it shouldn't have been. The position on the board repeated 3 times, but the piece banks were different each of those times. How can I win 2 knights for 2 pawns and that's called a repetition? I'm winning material.

In regular Chess, all that matters is that the position on the board is repeated three times, with the same side to move each time. That's apparently also how it's implemented here. I'm not a Crazyhouse expert but I wouldn't expect that the piece bank should matter, what's on the board matters.

Matttin

A quick search shows, that this was already brought up in 2021 in this forum post. A quick test showed, that the rules for threefold repetition seem to be different on the variants server, where the same piece bank appears to also be a requirement for threefold repetition.

Imo it only makes sense to account for the pieces in hand as it is not the same overall position as before if a player gains/loses material while repeating the same board position.