AMAZING Chess Puzzle From Reddit

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n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1

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[nickcellino]

I've seen thousands of chess puzzles but this one may be the most amazing of all. Nelson's perfect commentary enhances the beauty of the composition.

[JohnDoe-tinp]

In 1995, John Nunn shortened a study by Matous to produce this position, as an engine-stumper. It's interesting that it continues to stump engines today, almost 30 years later.

[Autrone]

Really crazy how Stockfish does not focus on "wayward" moves (like the move that it does not detect) but rather "direct" moves that are straight to the point but creates a draw in this instance! This is for Stockfish to be resourceful on memory by eliminating "wayward" moves that have less chance to generate a win and giving more depth to the moves that seem more "winning".

Good to see you back after disappearing from my recommendations for 3+ years! Time flies so fast!

[wickedpawn]

This is perhaps the most insane puzzle I've ever seen.

[golux-]

There's another interesting line where white has to be very careful -- if, when the queen and knight are keeping the white king from moving black can play Nd5+, and if white moves anywhere except Ke6, Nc3 blocks the bishop *and* delivers a check on white's king. Black can then perpetually check until a 3-fold draw is reached.

[johnathanpatrick]

2:30 -- Cue Eric Rosen: gxf7+, a pin and a fork, a pork!! 🤣🤣

[Phixersor]

Me, a 900 rated player, after hearing stockfish see no win, still pauses to have a look.

Mario Mattous was the composer... he made a lot of problems like this one

[harikumars]

This is THE best chess puzzle I've ever seen 🤩🤩
Thank you very Nelson for bringing this up!

[wayneyadams]

This is a phenomenal puzzle, and I would never have figured it out within the time constraints of an actual game. I'm not even sure I could have firgured it out given unlimited time. Thanks for showing this to us, especially the part about delivering the checkmate by moving the King.

[cougar]

I wish wish wish wish wish that Nelson would run through the full puzzle once quickly at the end of the video, just so we can see the wonderful solution in full motion. Love the channel!!

[DustoxRules]

2:44 you can even promote to rook to force checkmate in 2

[roguebarbarian]

Not only did I checkmate with a king once, I checkmated by moving out of an opponent’s check.

[Ozasuke]

One of the coolest puzzles I have ever seen! Thank you for sharing and breaking this down!

[MrCamerontaylor]

That pawn just standing there threatening promotion the entire time. But ultimately just winning by being able to capture diagonally forward one square...

[midnighttrain-jzmy]

I like how Stockfish suddenly realizes: "Oh yeah!... there is a checkmate there" 😅So sad, poor Stockfish cant talk to us, he would have so much to say.

[BlckJack]

Hats off to whoever developed this puzzle! Can you imagine how much effort had to go into figuring something like this out?

[luckydust]

Try analysing positions with Stockfish 16 instead of Stockfish 16 lite. The lite version is often a bit off. Stockfish 16 will find this mate before reaching depth 30. It's always frustrating to me to hear "Stockfish can't find it" and see "Stockfish 16 lite depth 22" in the corner.

Amazing puzzle btw

[ruuneney]

At 9:44 - consider if black moves queen to A3. Covers both the bishop and the promotion at f8... edit: Ok, if so, you move king, check, but queen takes bishop. You can *then* promote the pawn for mate...

[YaroslavBukharovich]

Thanks for explaining the elegant solution. You should have also explained the blacks defense attempt with Qf8 at the very end.