Illegal Position Contest!
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EvinSung
Jun 10, 2022
0
#6341
Jun 10, 2022
0
#6349
sksshooter wrote:
Fename 写道:
#6376
it coud be a promoted rook,can't it?
It's an impossible double-check mate
ShouldBreezi wrote:
sksshooter wrote:
Fename 写道:
#6376
it coud be a promoted rook,can't it?
It's an impossible double-check mate
It's not because of this.
He has deceived us into thinking that the action is with the double check...
when it's the a8 bishop which has eluded us.
The double check itself is certainly possible, coming from Nd8 (coming from e6) cxd8=R+.
Jun 10, 2022
0
#6352
eric0022 wrote:
ShouldBreezi wrote:
sksshooter wrote:
Fename 写道:
#6376
it coud be a promoted rook,can't it?
It's an impossible double-check mate
It's not because of this.
He has deceived us into thinking that the action is with the double check...
when it's the a8 bishop which has eluded us.
The double check itself is certainly possible, coming from Nd8 (coming from e6) cxd8=R+.
hi
EvinSung wrote:
#6372
Why illegal? Because every square on the 6th rank is guarded by an unmoved black pawn, and the white king can't pass the 5th rank.
EvinSung wrote:
#6373
Why illegal? Because releasing either white bishop blocks the path of the other one.
EvinSung wrote:
#6374
Why illegal? Because Black lacks tempo moves to finish after the position is locked. If the bishop at d1 and the white king were swapped, it would be legal.
sksshooter wrote:
probably legal
Definitely legal. You might want to post this position in the Shortest Proof Game thread.
Jun 11, 2022
0
#6358
n9531l1 写道:
sksshooter wrote:
probably legal
Definitely legal. You might want to post this position in the Shortest Proof Game thread.
ive already posted it in the shortest proof game thread