Shortest-proof-game challenge

#578
Here it is shortened

I thought you would be able to do that.  I also had expected to see your game for the position at #569 by now.

#573
Approaching the bishop to e1 via b4 to save the move Kh5 is a good idea indeed.
Here is an even shorter version:

I don't see it going lower that this, but if RewanDemontay returns he might want to try. I hope you'll take a look at #570. I found it harder than the version with the black knight, but came up with a 78-move game.

#584
It can be shorter. Key is to tame the white quadriga Nb1, Ng1, Nb8, Nc8. The motions of the white Rh1 and Bf1 can be better. The black king can enter h5-h4-h3-g2, so that white can play h4 in 1 move only without h3 first. I look at these ideas first before I attempt #570.

AuroranMelody posted this position in the Illegal Position thread, thinking it was an illegal position. How short a proof game can you find for it?

IT IS ILLLEGIAL. I TRIED IT

If you want to improve on my 34.5 move proof game, you will have to do better than simply claiming the position is illegal.

where is it? where is the proof game? show me

You don't get to see it until you have posted your own proof game.

I can confirm this position is legal... I figured it out at around the same time as n9531I1, actually. Their proof is very elegant, though.

Although I must say, it feels good that an 1800 player was stumped by this as much as I was... I spent so long proofchecking that thing, when I posted it, I was certain it was illegal too!

wait I HAVE IT!!!!!!

ITS INCORRET LOL. but im too  lazy here a quick test! is it possible to complete it? the proof game i sent out? for the 585? correct answer = 1 trophy!

No, you went wrong too early to permit any correction. You need to start over.

Honestly, this puzzle is more a question of, "How can we make the proof work?" than it is about, "How short can we make the proof?" But yeah, your solution is unsalvageable at that point, I'm afraid. Sorry bud! I can give you a hint, if you want?

Speaking of making the proof shorter, actually, I just improved n9351I1's proof down to 29.5 turns! Broke the 30 turn barrier, hell yeah! Anyway, I'll wait and give other people a chance to try and figure out how the proof works before I post my solution.

lol i will do it later maybe tommorw or next weak NEXT POST GETS 1 TROPHY!!!!!!!

I already feel a little weak. Is this post worth a trophy?

yep