Shortest-proof-game challenge

What happens if I change the bishop to a queen?

"Found 1 solution. The problem is correct.

Solving time: 00:02:30 minutes."

-comp

Unique SPG in 26.5. Solving time: 00:00:49 seconds. (Stelvio 2.0)

Hey! Your comp is not supposed to be this much faster than mine. 😡

Still cooked

Composer: G. Donati

Don't despair. Yours could be bigger than mine.

Unique SPG in 23.0. Solving time: 00:00:04 seconds.

You're supposed to solve this one yourself.

Using a computer misses the artistry.

Even so, I thought it was neat the way the g8 knight visited the home of the other black knight and then returned to its own home. I didn't miss that artistry, and couldn't have solved it myself.

updated 6583

Unique SPG in 41.0. New record.

At this rate, Evin should start publishing these games. 41 moves is crazy.

Getting closer to the current published record of 57.5 moves.

we have a professional composer hiding here

i am just here for fun i focus more on real chess

Still, you have great talent for these long proof games. They are not easy to make, yet you still make a proof game longer than 40 moves! That’s a very impressive achievement.

Also, you’re not too far off the longest PG. If you continue with extending this proof game, you might get even closer to the record, or possibly exceed it.

i imagine adding 17 moves (exceeding) would take some effort

duals can creep up wherever

I am aware that it would be a challenge to just add moves without duals popping up, but who knows? Anything is possible. EvinSung has extended the proof game several times and managed to get it unique in some instances.