A better version:
Shortest-proof-game challenge
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daStrwbrry wrote:
Something short and sweet this time (#6648)
Can you find the unique SPG (tested by Jacobi)?
Another interesting question. How many unique proof games does this position have of different lengths?
daStrwbrry wrote:
A better version:
The "better version" has only one unique proof game, the SPG in 13.0.
n9531l1 wrote:
daStrwbrry wrote:
A better version:
The "better version" has only one unique proof game, the SPG in 13.0.
I thought it was “better” since it was slightly longer than the original and featured a tempo move. The 12.5 proof game in the original also has this tempo move too, but it isn’t the SPG. But then again, “better” is subjective to each person.
Either way, the motif for both positions was that the promoted knight visits all the squares that the b1 knight went to, and returns to that knight’s home (Pronkin N).
BishopTakesH7 wrote:
#6653
17.5 moves. Has duals.
EvinSung wrote:
31.0. I don't see any cooks. Haven't run a comp test.
EvinSung wrote:
#6655
Proof games in 30.5.
This is a position from another thread. What is the shortest way to reach it?
tygxc wrote:
This is a position from another thread. What is the shortest way to reach it? (#6658)
Here are a couple of shortest ways.
It’s all squishy from Tabor and phone
BishopTakesH7 wrote:
#6661
Unique SPG in 8.0.
BishopTakesH7 wrote:
#6663
SPG in 19.0 (not unique).
Something short and sweet this time
Can you find the unique SPG (tested by Jacobi)?