#6803 I actually got one! Let's go!
Ok maybe I wasn't the first but this is the first time I did it on my own 
Shortest-proof-game challenge
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Me8vVv wrote:
#6803 I actually got one! Let's go!
Ok maybe I wasn't the first but this is the first time I did it on my own
Good job.
n9531l1 wrote:
Me8vVv wrote:
#6803 I actually got one! Let's go!
Ok maybe I wasn't the first but this is the first time I did it on my own
Good job.
thanks for the challenge : )
#6799
Very neat solution! Forced to ep without using any double checks or trapped bishops
BishopTakesH7 wrote:
Unique captureless proof game:
#6809
18.0 moves.
Interestingly, each side can theoretically reach their own position in 17 moves, but all the interferences between the pieces make this practically impossible. And if only white wastes a move for 17.5, there’s still problems with pieces clashing (at least what I think), so black must waste a move too.
The extension is cooked though. The bQ can go directly to a5, allowing for several SPGs in 23.5.
Apr 24, 2024
0
#6809
daStrwbrry wrote:
The extension is cooked though. The bQ can go directly to a5, allowing for several SPGs in 23.5.
How about if the c-pawn doesn't move?
Apr 24, 2024
0
#6810
daStrwbrry wrote:
BishopTakesH7 wrote:
Unique captureless proof game:
#6809
18.0 moves.
Interestingly, each side can theoretically reach their own position in 17 moves, but all the interferences between the pieces make this practically impossible.
The many interferences were my main strategy for boosting the move count. My hope is that I can turn this position into a unique captureless proof game where every piece moves at least once.
BishopTakesH7 wrote:
daStrwbrry wrote:
The extension is cooked though. The bQ can go directly to a5, allowing for several SPGs in 23.5.
How about if the c-pawn doesn't move? (#6813)
Here are two SPGs in 22.5 found by Stelvio 2.1 for this one.
Apr 24, 2024
0
#6812
n9531l1 wrote:
Here are two SPGs in 22.5 found by Stelvio 2.1 for this one.
It's proving tricky to try and get the black rooks involved.
BishopTakesH7 wrote:
It's proving tricky to try and get the black rooks involved. (#6815)
SPGs in 21.5.
How short a proof game can you find for this position, inspired by one seen in the Illegal Position thread?
@6818
n9531l1 wrote:
How short a proof game can you find for this position, inspired by one seen in the Illegal Position thread? (#6817)
Here's the 36-move proof game I made just to have a legal game ready to show. How much shorter can you make it?
@6820
Shorter:
@6803