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@fahmisalam-tt7zi

7 ай бұрын

The bishop vs the Queen + Knight... Finally check mate in the end

Puzzle 2: 1. Rd8+. If Kxd8, R or Q to back rank leads to mate. King must 1....Kb7. 2. Rxc7+ Qxc7 3. Rd7 pins the Q. 3....Qxd7 4. Qxd7+ Ka6 5. Kxb2 and White has Queen vs Rook.

@MyBiPolarBearMax

7 ай бұрын

If kxd8, rf8+, Qe8 interposes but after rxe8+, kxe8, Qxb6+ and the king takes the other rook on the next move, white is up a full queen in the end

@tominmo8865

7 ай бұрын

@@MyBiPolarBearMax Awesome! Even better!

Happy birthday! Impressive puzzle. SF16 gave me the mate in 12 with BC7 ... after a while, at a deep of 157.

After this puzzle I now realize I have a lot to learn in chess

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Wow !!!! Thank you, your stream is the best by far

I analyzed the first position via Komodo. It was able to get mating move at depth 16. I have seen this with other puzzles as well that Stockfish 16 is not able to find the mating move at even 30 depth but Komodo does it under 20 depth. The Dragon Engine does it even faster.

@astronemir

6 ай бұрын

It’s because stock fish is really good at pruning what seems to be bad moves. A queen sacrifice that leads to material disadvantage for like 10 turns is a move that gets pruned. This allows stock fish to usually find better moves faster, getting to higher depth and winning.

2 puzzle: The white plays: Rd8+!! if black takes the rook move Rook to f8+ Qe8 only move, then take queen, King takes and take rook If black plays K-g7, we will play, R-C7+ only move take with a Queen, and we will move R-d7 pinning the queen Queen takes the rook, we takes the queen ( check ) King moves & take the rook

Tumnnail position: 1. Bc7, with the point of removing the queen from defending f7 (Bb6 results in Qxc8 and after gxf7 Kf8 then the queen is nicely defending from Bc5+, Bxa5 results in Qxc8 gxf7 and after Kh8 white doesn't have Bc3 because of Qxc3) If black does not take the queen but rather takes the bishop 1... Nxc7 then gxh7 forks the queen and the king (notice that the queen is pinned) and the endgame should be winning for white (Q vs N & 2 P) If black takes the queen 1... Qxc8 then white will play 2. gxh7 forcing the king to h8 as Kf8 would result in Bd6 mate 2... Kh8 then 3.Be5 3... Qc5 is obvious, as it is the only move that can take the bishop if needed (as otherwise it would be mate) and controlls the f8 square. Here the bishop has a choise of going to b2 or a1. The visualisation was getting a bit tricky despite for having a board with the squares in front of me, but after we move it black must box in our king to c7 to stop mate, so my calculation was if Ba1 Nc7 Bb2 a4 Ba1 a3 thus Ba1 does not work and it must be Bb2: 4. Bb2 Nc7 5. Ba1 a4 6. Bb2 a3 6. Ba1 a2 7. Bb2 a1=Q (or a1= anything) 8. Bxa1 then anything looses lets say Qa3 9. Kg5+ Qxa1 10. f8=Q# Calculated on my own, visualisation as if I played OTB, would perhaps have found it, but now I knew to look for it, although the first move was obvious to me. I am 15 btw

@manuelph168

7 ай бұрын

wow, i guess you're a g.m. or an i.m. at least

I am seeing this as solution to puzzle. Rd8+ If Kxd8 then Rf8+ Qe8 Rxe8 Kxe8 Qxg7 no matter where the black king moves white plays Kxb2. White is up by a queen If black plays Kb7 then Rxc7+ Qxc7 Rd7 Qxd7 Qxd7+ wherever the black king moves white can play Kxb2 in which white gets a queen vs rook endgame which should be winning

mutual zugzwang! i love it. thanks for this!!! i am grinning from ear to ear.

This is amazing! 😆😆

"Two birds with one pawn" lol

I see it immediately. Not because I am good but because I saw it before. It still very satisfying to watch.

Mind blowing puzzle!

Actually, Stockfish 14+NNUE got this instantly, #12. The only reason is - weird enough - that engine evaluation is set to only one line. With multiple lines it returns a draw. Obviously a software bug. [Variant "From Position"] [FEN "n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1"] 1. Bc7 Qxc8 2. gxf7+ Kh8 3. Be5 Qc5 4. Bb2 Nc7 5. Ba1 a4 6. Bb2 a3 7. Ba1 a2 8. Bb2 a1=Q 9. Bxa1 Qd4+ 10. Bxd4 Nd5+ 11. Ke6+ Nf6 12. Bxf6# EDIT: I stand corrected. It got it instaltly because of Cloud computing (113 ply). My bad.

► Chapters 00:00 2 Mind-blowing Chess Puzzles 00:03 Puzzle-1: Even Stockfish couldn't solve this chess puzzle 01:41 Solution: Out-of-the-world move! 04:18 1 move wins, other move loses 07:04 Puzzle-2: Can you solve it?

oh and at the end... i actually saw it before i was supposed to..... i thought it was white to move before black played Rxb2 and so i started thinking about it, probably because of the rotation of the board... it is always satisfying to counter sac, yeah, especially when it wins on the place

Puzzle 1 in the last black also have one more pawn at G7, that can march

As a chess noob, I fell proud of thinking of rook to d8 the first thing... and seeing that it forces a checkmate later on 😊 However, that's only when I've been told that there is a killer move... if it happened to me in a game, I'd likely be clueless...

i am thinking rd8+,if king takes then ladder mate with qh8 or rf8, thus kb7 is forced. rxc7+, if king leaves check then rook take queen and winning. If queen takes then rd7 pinning queen to king. If qxd7 then queen recapture with check and then our king picks up the rook. If king leaves the pin we take the queen and the other 2 rooks are both hanging thus also winning.

@sangareswaran.m7315

7 ай бұрын

If king takes its not mate ,queen h8 is blunder Rf8+ is correct then Qe8 ,Re8+ K×e8 then Qg6+ King forced to move and take the last Rook by King ,that's the sequence if King accept the rook sacrifice on Rd8+

@laibw2458

7 ай бұрын

@@sangareswaran.m7315 oh yea i misremember the black king position thinking its mate, but after qh8+ qe8 rf8 the black queen is still won and black has no time for counter play with rooks

@sangareswaran.m7315

7 ай бұрын

@@laibw2458 but at the end either one of the Black's rook gonna survive if Qh8+ is happened.

@laibw2458

7 ай бұрын

@@sangareswaran.m7315 well its queen vs rook which is winning but yea its not the most winning line

How about the black queen following the bishop and using b4 or a3.?

Funny thing is, if you show Stockfish the first move, it finds the solution instantly.

Puzzle 1. What if the black queen attacks the white bishop all the time? Then its also a draw, repeat of turns?

Just looking at both these insane positions gave me a headache...😢

at 4:56 after Bb2, why can't black put their queen on b4 ?

In 5:06 what if black move Q to b4 and just start chasing bishop

Rd8+ Kb7, Rxc7+ Qxc7, Rd7 Qxd7, Qxd7 King moves somewwere and then Kxb2.

my mind is in mutual zugszwang! it can’t stop checking itself 😮

Rd8+!! then Rf8+ if the king does not take then Rxc7+!! Qxc7 and Rd7!

@Naborbukv2

7 ай бұрын

After Rd8+ King can avoid taking Rook by retreating to b7

@PotatoChess-we7rj

7 ай бұрын

if the king does not take (goes to b7) then Rxc7+!! Qxc7 and Rd7!@@Naborbukv2

@bigdavechanfromhk4549

7 ай бұрын

​​@@Naborbukv2then rook take c7 queen take then rook to d7 u bound to take a rook back from black

This is wicked. I never fathom moving the bishop, as that would lose the white queen. No wonder I'm hovering around 1100.

@bigredracingdog466

7 ай бұрын

GMs would struggle with that.

@ilmikingo

7 ай бұрын

"Hovering around 1100" online blitz or regular time, over the board? I believe the vast majority of online chess players really thinks they are playing chess when, with so short times you can never calculate properly. The beauty of puzzles like these is that they expose the chess complexity thus the attraction, the passion many of us have for the game! You can think a few moves ahead, even considering to sac your queen, but in an open endgame, with the two queens still on the board, how much time you need to calculate all the variations and find the correct line? So, my point is, if anybody wants to play real chess, he needs to set apart lightning, blitz, rapid and go for longer times.

Rd8+

Knight D3 check,then knight c3

Isn't there black move of Nd5 followed by Nc3 in the first problem?

@Pseudify

7 ай бұрын

What does that get black?

Rd8+ & Black loses queen for two rooks but taking queen with check,So you win a rook by Kxb2. and wins the game

Puzzle 2: 1. Rd8ch Kb7 (if 1...Kxd8 2. Rf8 Qe8 3. Rxe8ch Kxe8 4. Qxg6ch followed by 5. Kxb2 White is a queen up) ...Kb7 2. Rxc7ch wins. If 2...Qxc7 then 3. Rd7 pinning the queen and Black is material up (3...Qxd7 4. Qxd7ch followed by 5. Kxb2 and if 3...Rgg2 then 4. Rxc7ch with a mating attack). Black can try something like 2...Ka6 (Moving the king back to the 8th rank leads to mate for white) but after 3. Rxc6 Rgg2, White is simply up queen for rook and can possibly play his rook back to c7 and look for a queen check on d3 (Or a rook check on h2) keeping one eye on the c2 square for a rook check by black.

Nf7?

Oh wise and mighty one... Rook to D8?

happy birthday lol

Bf7?

Rd8

happy Birthday

Bc7

Then king G7

Stockfish tells me to do exactly this move. MAYBE you should allow Stockfish A LITTLE more search depth?

Actually, Stockfish 15 found it on my computer!

@mikoajp.5890

7 ай бұрын

I got 0.0 on max depth, moving the bishop resulted in #11

Who came up with this puzzle, Alpha Zero?

i solved it!! ..incorrectly:) - 1st of November, November's Fools, folks

Compré un curso doble (109$) pero no había opción para adquirir el segundo (o segundos) gratuitamente. Tampoco tengo respuesta al correo que envié.

Korchnoi was an absolute legend and is will always be one of my favourite players. His unofficial title of the champion villain of the chess world is well-deserved. He was a Soviet player until 1976, which means the Americans didn't like him by default during the Cold War, but he was also disliked by many Soviets as well (I'm sure the feeling was mutual) and defected in 1976. Not to the USA though, but to the ultimate neutral country Switzerland. And continuing to hold onto his Heavyweight Chess Villain Champion of the world in the final years of his life, by becoming p*ssing off the Swiss and winning the 2009 Swiss championship at age 78, also becoming the oldest player ever to win a national championship. One of the strongest players never to win a world title. I can think of two other villainous things that Korchnoi did which involved breaking the rules: 1. Castled illegally in a game in 1995 versus Stefan Kindermann where everyone forgot his king's rook had moved back to its starting square, and ended up winning. When the arbiters reviewed the game they found the illegal move and by the rules the players were obliged to "rewind" the game back to that point, but they thought it was too hard and decided to agree to a draw instead. 2. Played a game of chess versus a ghost in 1985, his opponent being Geza Maróczy who died in 1951. Not quite "breaking the rules" but many people would consider involvement with necromancy or spirit mediums to be a "dark art". In any case, playing a game of chess with a decades-long dead guy is worthy of a villainous player. I'd love to see a living GM play the same sort of game with Korchnoi. Might end up being a chess-world tradition for playing against deceased GM's! (sorry that this comment is not really relevant to the video or puzzle, but I don't often get to do a fanboy post about Korchnoi and will use any excuse).

@versicherungsnews

7 ай бұрын

Great idea

Something wrong in solution

There's probably something better, but Rxc7+ looks pretty good. After all the trades, white has one extra pawn for the end game.

@bigredracingdog466

7 ай бұрын

You're on the right path, but there is a much stronger idea.

@walterwhite210

7 ай бұрын

An extra in rook endgame is basically a draw

You meant Torch, not Stockfish, right? Stockfish is in the past.

Why can't Black ♟️ move his H pawn¿!

@Dhargalkar

7 ай бұрын

Because white will go Kg6, which would be checkmate

Rd8+