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Illegal Position Contest!
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Jun 26, 2024
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#8764
MARattigan wrote:
Anybody know why this thread in particular attracts so many morons?
People miss the point/"rules."
I’ve used a similar pawn structure before, but the idea here is slightly different.
daStrwbrry wrote:
I’ve used a similar pawn structure before, but the idea here is slightly different.
I don't have a proof, but wanted to see how close I could come. This almost works, but there's no way to have the bishops trade places.
ZiliangMaShows0Mercy wrote:
#8658
Obviously illegal--both kings in check.
n9531l1 wrote:
daStrwbrry wrote:
I’ve used a similar pawn structure before, but the idea here is slightly different.
I don't have a proof, but wanted to see how close I could come. This almost works, but there's no way to have the bishops trade places.
You can retract moves and even free the white King, but the Bishops are still stuck in a "corridor" at the beginning of this sequence:
How does black retract the King away?
White can't retract the b3 pawn to b2 with the Bc1 not home, and can't retract the c3 pawn to c2 without losing the benefit of the b1 square, which could allow the Bishops to pass each other.
BigDoggProblem wrote:
n9531l1 wrote:
I don't have a proof, but wanted to see how close I could come. This almost works, but there's no way to have the bishops trade places.
You can retract moves and even free the white King, but the Bishops are still stuck in a "corridor" at the beginning of this sequence:
How does black retract the King away?
White can't retract the b3 pawn to b2 with the Bc1 not home, and can't retract the c3 pawn to c2 without losing the benefit of the b1 square, which could allow the Bishops to pass each other.
Yeah, that’s pretty much the important bits of this position covered; the narrow bishop corridor is what I wanted to showcase here. It isn’t much different from #8281 (which shares a lot of relevant retro-analysis with this position), but it is a little something to revive the thread.
This is an illegal checkmate
n9531l1 wrote:
daStrwbrry wrote:
I’ve used a similar pawn structure before, but the idea here is slightly different.
I don't have a proof, but wanted to see how close I could come. This almost works, but there's no way to have the bishops trade places.
It's deeper than that, even freeing up one the kings via a knight move trying to rearrange stuff so that the bishops had the b1 square, the black king would have to be on b2 which would make qa1+ impossible at the point the knight is still on b1 (since the king would have to move from a3 first to free up room for the knight.)
Can't remember if this was posted or not but I'm not sure about this position:
Şahmat əyləncə.🤪😜😝