Shortest-proof-game challenge
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Leither123 wrote:
#6733
14.0
@6736
First try:
EvinSung wrote:
#6736
Unique SPG in 14.5.
Two questions:
1. Is this position's SPG unique?
2. For what other move count does the position have a unique proof game?
n9531l1 wrote:
Two questions:
1. Is this position's SPG unique?
2. For what other move count does the position have a unique proof game?
1. Yes
Please don't use computers. I did a test already. It's sound.
Hardly original, but seems to be the shortest possible problem of this theme.
BigDoggProblem wrote:
Please don't use computers. I did a test already. It's sound.
Hardly original, but seems to be the shortest possible problem of this theme.
Is "this theme" the theme of a position with unique proof games of different lengths?
n9531l1 wrote:
BigDoggProblem wrote:
Please don't use computers. I did a test already. It's sound.
Hardly original, but seems to be the shortest possible problem of this theme.
Is "this theme" the theme of a position with unique proof games of different lengths?
No, it's a different theme. I wouldn't have said "shortest" for a thing like that.
BigDoggProblem wrote:
n9531l1 wrote:
Is "this theme" the theme of a position with unique proof games of different lengths?
No, it's a different theme. I wouldn't have said "shortest" for a thing like that.
My suggestion would be to identify the comment(s) in which "this theme" occurs.
BigDoggProblem wrote:
(#6742)
Hardly original, but seems to be the shortest possible problem of this theme.
Here is a slightly shorter problem of this theme. The unique SPG for this position ends with a move by Black, which should make everyone happy, including EndgameEnthusiast.
Apr 9, 2024
0
#6717
hmm
does the theme necessitate capture?
if so i dont think your position is part of the theme
n9531l1 wrote:
BigDoggProblem wrote:
n9531l1 wrote:
Is "this theme" the theme of a position with unique proof games of different lengths?
No, it's a different theme. I wouldn't have said "shortest" for a thing like that.
My suggestion would be to identify the comment(s) in which "this theme" occurs.
My counter would be, solve it and then you'll know the theme.
Ilampozhil25 wrote:
hmm
does the theme necessitate capture?
if so i dont think your position is part of the theme
Bingo. It doesn't count.
BigDoggProblem wrote:
Ilampozhil25 wrote:
hmm
does the theme necessitate capture?
if so i dont think your position is part of the theme
Bingo. It doesn't count.
Since #6742 refers to "this theme" without telling what it is, it's up to the solver to infer the theme. I did solve it, and decided the theme is a position with a unique SPG in which a promoted pawn is captured by the opposing king. My view is that my position meets the theme and has a shorter solution.
What is your description of the theme?
#6731
13.0