Shortest-proof-game challenge

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Avatar of tygxc

#878 shorter

 

Avatar of YidingL1
1trophyhaha

 

Avatar of tygxc

#878

One shorter

 

Avatar of tygxc

#882



Avatar of tygxc

#882

Shorter

 

Avatar of tygxc

#882
And shorter

 

Avatar of n9531l1

How quickly can you reach the position below?



Avatar of tygxc

#887
Not yet shortened:

 

Avatar of n9531l1

Now we know it's legal, and just needs to be shortened.

Avatar of YidingL1
my
 

my answer is 27 moves long try to beat it!

Avatar of tygxc

#890
shortened to 17 moves



Avatar of n9531l1

I'm looking forward to the shortening of #888.

Avatar of tygxc

#892
Here is a slightly shorter version of #888




Avatar of n9531l1

That's a good improvement. Here's a hint. To become the record-holder for this position, you need to find a proof game shorter than 65 moves. You're already getting close.

Avatar of YidingL1
48 MOVES BEAT IT

 

Avatar of tygxc

#895
First attempt at 24 moves



Avatar of n9531l1

#895

 

Avatar of tygxc

#897
Down to 22



Avatar of tygxc

#898
And down to 21



Avatar of YidingL1

the impossible