#540
Shortest-proof-game challenge
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tygxc wrote:
#540
That is not the shortest proof game, but you did an excellent job of presenting the game on a board and proving that the position is legal. I am giving you one compliment, which you may find even more satisfying than a trophy from YidingL1.
I am wondering if tygxc might like to tackle my position at #478.
#540
Thanks to those who patiently explained how to post a board.
Here is a shorter version
That's a good improvement. If you would omit the last four moves, it might even be the shortest, at 29 moves.
n9531l1 wrote:
Here's a try at Rewan's position #507. I think it might be about four moves too long, but I wanted to show the position is legal, and also thought by working on it, I might convince Rewan to reply to my #501 question.
Nice job. 41 moves is indeed possible.
#547
The last moves are there to reach a 3 fold repetition draw as required 1/2 - 1/2
May 18, 2021
0
#551
tygxc wrote:
#547
The last moves are there to reach a 3 fold repetition draw as required 1/2 - 1/2
that is NOT required
#551
The position of #540 has 1/2-1/2 top left of the board, hence the 3-fold repetition
#478
I think this is an illegal position. The last move was Qh3xQg3#. The move before that could have been Nf2-h1 or some move with Ba7. The move before that could have been some pawn move. I see no way to move backwards from the final position towards the initial position. All pieces are locked.
tygxc wrote:
#478
I think this is an illegal position.
My 70-move proof game at #494 shows that the position is legal. Your job would be to find a proof game shorter than the 66-move game mentioned at #504.
May 18, 2021
0
#558
tygxc wrote:
#540
Thanks to those who patiently explained how to post a board.
Here is a shorter version
2 for u
1 trophy