AMAZING Chess Puzzle From Reddit 

I cant remember ever seeing one that I just couldn't solve. It reminds me of what magnus said about cheating when asked what he would need to cheat. Just a single signal one time in the match would be enough. It would be to indicate a complicated winning move is available. Then you simply find the move. In other words, chess puzzles are cheating :P

The engine solves the study in seconds (mate in 12).

@@janbilek367 I tested this position with Lc0 on my PC and it took 1 minute, but my hardware isn't the fastest.

Until you see the next "most insane" one you've ever seen.....lol

​@@Grayback1973do you also call your girlfriend "the best person in your life until you meet a better one"?

Yeah there is still some flaws with Stockfish there Maybe it would need to stop calculating drawing lines further and further when it's obviously a draw to focus on analysing previously discarded moves Like "ok this is a draw, now do I have a better option?" Especially when it have infinite time to think

Contrary to what the video claimed, Stockfish actually finds the long forced-mate instantly. Chess Vibes keeps using the bad default Chesscom setting that limits Stockfish's depth to 22 - an artificial handicap that weakens the engine considerably.

@@Rocky64 Does a depth of 22 count both white and black moves toward the depth? If that's the case, I feel like it shouldn't find forced mate in anything above M11, but it does, doesn't it? It's more likely that moving the bishop is a "weird" move that Stockfish discards early on.

No, Stockfish (and Komodo) run alpha-beta searches, which evaluate the position for every possible (winning) move. It has nothing to do with intuition. If there is a mate in 12 and you let it search up to 24 ply Stockfish WILL find it - it's mathematically guaranteed. The depth was just artificially handicapped to 22 ply in this puzzle. You could say the same about a Stockfish limited to 1 ply and entirely relying on its NNUE heuristic.

​@@tuxedobob2Yes, 22 is the depth of the game tree, which gets one level deeper for each player move. So 22 deep detects all mates in 11 and below. In these positions Stockfish can easily get to 35 or so depth if you don't just cut it off.

Also from Gauri chess

@damyankuzmic5605That's not how you spell "lol". Do you live inside a cave or something?

@damyankuzmic5605 Lol means Laugh out loud, as in you are laughing audibly

@damyankuzmic5605 1. It does make more sense, I can tell English isnt your first language so Im not trying to insult you. But laughing out loud is coherent and means something while laughing on loud doesnt make any sense. 2. It doesnt matter if it would make more sense(it doesnt) because even if it does, the acronym is still laugh out loud. You can look it up, you dont change acronyms even if you think another word to replace it makes more sense.

@damyankuzmic5605 There is almost no time an outsiders perspectives will be right in terms of changing the language. It doesnt matter what you or I think, LOL is an acronym that means laugh out loud. It doesnt mean laugh on loud, it will never change from laugh out loud even if you think it doesnt make sense. It will be like me saying The Leaning Tower of Pisa looks more like a pillar so I will call it The Leaning Pillar of Pisa, I am just wrong because that isnt what it is called even if I think it fits more. Probably also shouldnt be thinking you know more about the English language just because you think one sounds better than the other, instead you should understand why this is right even if it sounds wrong. Otherwise implementing your own rules would make you illiterate to everyone else.

A real problem maker

Thanks, saw that and was thinking bishop takes queen is just losing. Didn’t realize you just promote.

Damn I saw the same thing forgot they don't have to take. Can you imagine playing Magnus and when you sac your queen, Magnus just concedes cuz he figured the rest out!?

He also missed Qf8 in previous positions, so.

I wanted to react , then I saw you came up with the same as me. Beautiful, isn't it! 😂

@@wesleydeng71 That was not critical, indeed, on some moves from zhugzwang, you just promote with a mate, rather than move your king

Well, the stockfish depth is only 22. That means it can only find M11 at max. The puzzle is M12. Change depth setting and you'll see stockfish true power.

2:09 stockfish suddenly gets smart 🤓🤓🤓😂😂😂

Yes. In 1995, John Nunn shortened Matous's study to create a puzzle for a Batsford Chess Competition. Nunn specifically selected this position (and two others) to be difficult for computers.

Same, king moves and bishop delivers discovered check. After Qxb2 promote the pawn

Nope it's sees mate in 2 it was fake

Ok, i understood what i was missing, after Qg7; f8=Q#

Elaborate

@@Fronzel41 I castled and where the rook was positioned lined up with the enemy king and it was checkmate.

I believe I have as well...

After the bishop capture you can just promote to a queen with mate

@@Adammarshall2341 oh yeah...thanks for the answer

The internet was so much better before eternal September. Now every poster is a bot or troll.

@@1happystone166 puzzles like this have been created for hundreds of years.

Everything was better back in the day, ask your grandparents. Or wait, are we now the grandparents?

king to f5,queen blocks at g7 and white gets a queen delivers a checkmate, as black queen will be pinned from bishop

@@studytable2060 Yes that's right...

Yeah. I once pulled odd a 0-0-0!! winning a bishop and thereby the game, but a king move for checkmate is something else.

Qf8 Ke6+ Qg7 f8=Q# the queen will be pinned by the bishop so not defending the promotion square

If queen blocks bishop doesn't have to take it. White promotes the pawn then its checkmate because the queen is pinned.

Then white promotes the pawn. Black Q is then pinned, so it's checkmate.

I believe white Kg5+ is still winning, unless I'm missing something. After Black plays Qg7+, White plays Kf5 and Black can no longer stop f8=Q#, even if queen takes bishop, since the queen is pinned on the diagonal and can't deal with the pawn. If Black plays Ne6, covering the f8 square, then the king simply captures the knight.

​@@terencemah8521Yes, you're right, Kg5 also works, and you just have to go with the King to a square that the night cannot check you on, so Kh5 or even Kh4 are good as well. Thanks for the correction.

Yes. A check and a pin. A chin.

He left it out since it’s not king mate :) Qf8, king moves, queen has to block, pawn promotes is mate because queen is pinned.

i knew i'd seen before it but couldn't remember where, Gauri is an absolute legend

@damyankuzmic5605 This is an invented puzzle

Brilliant 👏 👏

I saw this it last week on puzzles engine can’t solve

Same here

I don't see this option. If it was before knight preventing king to e6. After that bishop will be at a1. Before the knight movement king to e6 is checkmate.

This doesn't stop checkmate, but it does stop a humilating one.

A queen move to a3 or g1 or a knight move to e8 can procrast the checkmate but not stop it. But knight to d5 with check will stop white from winning because after the white king moves with discovered check, knight to c3 blocks the bishop. Bishop can not take it because the queen defends it and the promotion square is also defended by the queen.

@@robheusd so the queen is overworked. take the knight anyway and after the queen recaptures she is no longer defending the promotion square

KE6 and KE7 and the pawn...