Shortest-proof-game challenge

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Avatar of Ilampozhil25

lol

Avatar of YidingL1

+1

Avatar of n9531l1
tygxc wrote:

#551
The position of #540 has 1/2-1/2 top left of the board, hence the 3-fold repetition

You could skip the last four moves and still put 1/2-1/2 above the board simply by specifying a draw result in the game details. You can make the result show as whatever you want. You can set up a simple checkmate for White and put 0-1 above the board. The point is, when you are creating a proof game, you should ignore what's above the board. If the composer wants to require a drawn position, he has to say so in the problem stipulation.

Avatar of Ilampozhil25

thats what i was trying to say but then i just waited for you to correct him

Avatar of n9531l1

No one has posted a shorter game for #478 than my 66-move game, or any length game for that matter. Maybe it's too hard. So I'll give you an easy one.

The illegal position at #4865 in the Illegal Position thread is shown here with Black's b7 pawn removed. Now that the position is legal, how short a proof game can you find for it?

 

Avatar of Ilampozhil25

basically just need to make the pawn grab faster

Avatar of Ilampozhil25

also the position with the b pawns and with whites d3 pawn on e3

 

Avatar of n9531l1

Wasn't that easy? Now maybe you're ready to give #478 a try.

Avatar of tygxc

#494
The double knight promotion is splendid.
Here is a shorter proof



Avatar of n9531l1
tygxc wrote:

#494
The double knight promotion is splendid.
Here is a shorter proof

Your game is splendid! I hope Rewan will be inspired to try to shorten it.

Now here is another challenge. It's the same position, but with a white queen at e2 instead of a black knight.

 

Avatar of Ilampozhil25
n9531l1 wrote:

Wasn't that easy? Now maybe you're ready to give #478 a try.

im NOT skilled enough

Avatar of YidingL1

ok

Avatar of n9531l1

I looked at tygxc's #568 hoping to improve, and could only get one move shorter. If tygxc and Rewan want to improve, they'll have to find a game shorter than 63 moves. I'll give my game, which might provide some improvement ideas.

 

Avatar of YidingL1
1

 

Avatar of YidingL1

trophy

Avatar of YidingL1
3

 

Avatar of YidingL1

trophy

Avatar of n9531l1

First quick attempt, ready to be shortened.

Avatar of YidingL1
n9531l1 wrote:

First quick attempt, ready to be shortened.

3 trophies

Avatar of n9531l1

Here's an improvement from 73.5 moves to 66.5 moves. I'll let someone else shorten it more.