Well yes, king and knight VS king is insufficient material and one pawn added isn't. I didn't know how to do it, but if it's not insufficient material, mate is by definition possible.
When this problem was first published, close to a century ago, we were reminded that there are in fact TWO solutions - both using the identical concept, but different paths. [With knights, there are frequently more than one set of moves to get from A to B.] The other line is 1.Kf3 Kh1, 2.Kf2 Kh2 (as you showed here)… then 3.Nd4 Kh1, 4.Nf5 Kh2, 5.Ne3 Kh1, 6.Nf1 (again, as in the other line) h2, 7.Ng3#.
I figured out what the final position would look like, but didn't manage to get there. (btw I think the premise is wrong - it's known that a king and knight can checkmate if the opponent has multiple pieces remaining).
I don’t think it would be possible if black would have another piece on the board. The whole point is to force black to play pawn h2, if black would have another piece than he wouldn’t be force to play that move
@@taotoo2 There are countless possibilities that all involve a king smothered by his own pieces but it would require foolish moves by the losing player to smother themselves. It wouldn't work in a puzzle as a forced win like this one.
It's not correct to say that you cannot checkmate with just king and knight - or even two knights. What IS (I believe) correct is that you cannot FORCE checkmate (in any analogous manner to that in which you CAN force checkmate with King and Rook) with a king and a knight (or even a king and two knights) against a lone King when there are no other pieces on the board and the owner of the King does not make a mistake.
Man I know this pattern but it took me alot of times to find the concrete variations. 1. Kf3 Kh1 2. Kf2 Kh2 3. Nd4 kh1 4. Nf5 Kh2 5. Ne3 Kh1 6. Nf1 h2 7. Ng3#
A good way to calculate this kind of things is to see that a Knight only moves to a square of the opposite colour. This is how you understand that you need to waste a tempo with your King. Funny fact: when my opponent doesn't find the resign button, I like promoting all my pawns to Knights and mate the King with them. That practice was useful for that position ^^
I did solve this, including figuring out the First move for tempo by trial and error really. It wasn't easy, but it is solvable. It helped to work backwards from the final two moves. After that it was vital to keep the knight either able to move to g3 for a checkmate or else the black king had to be blocking his own pawn on h2.
Given the specificity of the situation, I first looked for the mate position before looking for the moves and saw, from the conclusion of the video (without peeking between) that I was right. Having a target I'll go about it and see what I find.
So the video gives a position where one side has only a knight and is able to force checkmate in seven moves. Can we create a position where the side with only a knight has an even longer checkmate? Yes... how about a position where the mate takes 22 moves! Here is my position, which I found by playing around with a tablebase: White: king on a7, pawns on a6, c2, and e3, knight on c8 Black: king on c7, knight on Nb6 Black to play wins. A key line goes 1...Nxc8+ 2. Ka8 Nb6+ 3. Ka7 Nc4 4. e4 Nd6 5. e5 Nf7 6. e6 Nd8 7. e7 Nc6+ 8. Ka8 Nxe7 9. Ka7 Nd5 10. Ka8 Nb6+ 11. Ka7 Nd7 12. c3 Nb6 13. c4 Nd7 14. Ka8 Kb6 15. c5+ Kc6 16. Ka7 Kc7 17. Ka8 Ne5 18. Ka7 Nc6+ 19. Ka8 Kc8 20. a7 Nd8 21. c6 Ne6 22. c7 Nxc7# Is there a line where the checkmate requires even more moves? I don't know, maybe!
Wow amazing line!! I don’t know if there is another longer line, but I know a shorter line that would preceed this exactly position with white knight on b7, white king on h7, white has a pawn on a2, black has a pawn on a3 and black king is on E5
I don't know how you found this but it's easy enough to improve by 1. From your position, move the black knight to c4, the white king to a8, and replace the white knight with a bishop. The winning line of course now being Nb6+ Ka8 Nxc8 and the rest as before.
Cheerfully saying,; "If you chose....", "Yes, I knew it!" Dashes my ego upon broken glass; "sorry you would be wrong." All of my mommy issues bubble up to the surface, as if it was not deflating enough to not be able to solve the puzzle. Great puzzle, great presentation, don;t change a thing. Thank you.
@@ChessCrafters-lk4dv I did, and I enjoy your choices and delivery. I am just glad you got my humor. BTW, I did everything wrong. So thanks for that ego boost. Wondering if my humor will be understood, and having my ego bruised, brother, I already have a wife. Love the Clint Eastwood poster. I mean he is no John Wayne, but he is a close second.
Have you ever thought you can deliver a checkmate using only your knight?
Next, please try this setup:
krbnqbnr/qnpppppp/ppp5/8/8/5PPP/PPPPPPNQ/RNBQNBRK/
Well yes, king and knight VS king is insufficient material and one pawn added isn't. I didn't know how to do it, but if it's not insufficient material, mate is by definition possible.
When this problem was first published, close to a century ago, we were reminded that there are in fact TWO solutions - both using the identical concept, but different paths. [With knights, there are frequently more than one set of moves to get from A to B.] The other line is 1.Kf3 Kh1, 2.Kf2 Kh2 (as you showed here)… then 3.Nd4 Kh1, 4.Nf5 Kh2, 5.Ne3 Kh1, 6.Nf1 (again, as in the other line) h2, 7.Ng3#.
you really like to hear yourself talk, this could have been a 3 minute video
Funny video. Pawn is forced forward in futility, you dont think about that far out.
Great puzzle, thanks for sharing.
I am glad you like the video
I figured out what the final position would look like, but didn't manage to get there. (btw I think the premise is wrong - it's known that a king and knight can checkmate if the opponent has multiple pieces remaining).
I don’t think it would be possible if black would have another piece on the board. The whole point is to force black to play pawn h2, if black would have another piece than he wouldn’t be force to play that move
@@ChessCrafters-lk4dv I guess another pawn on h4 would be okay
@@taotoo2 There are countless possibilities that all involve a king smothered by his own pieces but it would require foolish moves by the losing player to smother themselves. It wouldn't work in a puzzle as a forced win like this one.
It's not correct to say that you cannot checkmate with just king and knight - or even two knights. What IS (I believe) correct is that you cannot FORCE checkmate (in any analogous manner to that in which you CAN force checkmate with King and Rook) with a king and a knight (or even a king and two knights) against a lone King when there are no other pieces on the board and the owner of the King does not make a mistake.
Man I know this pattern but it took me alot of times to find the concrete variations.
1. Kf3 Kh1 2. Kf2 Kh2 3. Nd4 kh1 4. Nf5 Kh2 5. Ne3 Kh1 6. Nf1 h2 7. Ng3#
Congrats on being able to convert it. Even if you know it, sometimes it would be hard to actually applying it
That Scandinavian example is NOT actually winning a tempo cos white loses a move with exd5.
A good way to calculate this kind of things is to see that a Knight only moves to a square of the opposite colour. This is how you understand that you need to waste a tempo with your King.
Funny fact: when my opponent doesn't find the resign button, I like promoting all my pawns to Knights and mate the King with them. That practice was useful for that position ^^
That is a great way of underdasting. It's my first time when I hear that and it makes a lot of sense. Thanks for sharing
I did solve this, including figuring out the First move for tempo by trial and error really. It wasn't easy, but it is solvable. It helped to work backwards from the final two moves. After that it was vital to keep the knight either able to move to g3 for a checkmate or else the black king had to be blocking his own pawn on h2.
Congrats on finding the right move.
Indeed, working backwards is the easiest way of solving those kind of position
I had the same situation with ..Black.. which is a tad harder - a well known fact 😑
Given the specificity of the situation, I first looked for the mate position before looking for the moves and saw, from the conclusion of the video (without peeking between) that I was right. Having a target I'll go about it and see what I find.
Yep, reverse engineering is a very important skill to learn in chess. Sometimes is way easier to calculate from the end than from the beginning
Even if I watch this video 100 days in a row: the 101th day, getting this position on the board, I would not remember the steps.
You just need some practice and you would do it without a problem
So the video gives a position where one side has only a knight and is able to force checkmate in seven moves. Can we create a position where the side with only a knight has an even longer checkmate? Yes... how about a position where the mate takes 22 moves! Here is my position, which I found by playing around with a tablebase:
White: king on a7, pawns on a6, c2, and e3, knight on c8
Black: king on c7, knight on Nb6
Black to play wins. A key line goes 1...Nxc8+ 2. Ka8 Nb6+ 3. Ka7 Nc4 4. e4 Nd6 5. e5 Nf7 6. e6 Nd8 7. e7 Nc6+ 8. Ka8 Nxe7 9. Ka7 Nd5 10. Ka8 Nb6+ 11. Ka7 Nd7 12. c3 Nb6 13. c4 Nd7 14. Ka8 Kb6 15. c5+ Kc6 16. Ka7 Kc7 17. Ka8 Ne5 18. Ka7 Nc6+ 19. Ka8 Kc8 20. a7 Nd8 21. c6 Ne6 22. c7 Nxc7#
Is there a line where the checkmate requires even more moves? I don't know, maybe!
Wow amazing line!! I don’t know if there is another longer line, but I know a shorter line that would preceed this exactly position with white knight on b7, white king on h7, white has a pawn on a2, black has a pawn on a3 and black king is on E5
I don't know how you found this but it's easy enough to improve by 1. From your position, move the black knight to c4, the white king to a8, and replace the white knight with a bishop. The winning line of course now being Nb6+ Ka8 Nxc8 and the rest as before.
@@psymar You meant 1...Nb6+ 2. Ka7 Nxc8+ etc. but you're right - a new longest mate!
that Ouroborus on your shirt ?? :P
.
:D
Kf3 in like 2 seconds
Congrats
After white king to F3, and black king to H1, play white king to G3. Checkmate. Or am I making a mistake????
Can you tell me the minute?
I followed the same strategy, different solution: Kf3, Kf2, Nd4, Nf5, Ne3, Nf1, Ng3#.
There are multiple ways, the only thing you need to be careful is not to stalemate by mistake
Solution at 8:55 😅
Awesome puzzle
I am glad you like the puzzle
Very informative
I am glad you found it useful
On point!
I am glad you liked it
Cheerfully saying,; "If you chose....",
"Yes, I knew it!"
Dashes my ego upon broken glass; "sorry you would be wrong."
All of my mommy issues bubble up to the surface, as if it was not deflating enough to not be able to solve the puzzle.
Great puzzle, great presentation, don;t change a thing. Thank you.
Haha, i am glad you found it entertaining and useful
@@ChessCrafters-lk4dv I did, and I enjoy your choices and delivery. I am just glad you got my humor. BTW, I did everything wrong. So thanks for that ego boost. Wondering if my humor will be understood, and having my ego bruised, brother, I already have a wife. Love the Clint Eastwood poster. I mean he is no John Wayne, but he is a close second.
Is this from an actual game?
There was some games where this happened, see IM Rosen lose on time on chess.com when he was only move away to deliver this checkmate
Hey man, this I knew, when I was 17 years old. Now I am 57 years old.
What you show is only for beginner!
Yea, my channel is more towards beginners players
6:05 / 9:59
The Most UNBELIEVABLE Checkmate In Chess History??
***CLICKBAIT!!!***
😂❤
❤️💪
toooooooooooooooooooooooo much blah blah blah ,,,boring guy
I’m done watching your channel. You have managed to turn what seemed to be a very exciting puzzle into a boring one because of your non stop talking.
Non stop talking?
Don’t listen to this idiot, the video was very interesting, good explanation, really happy you made it!
Handsome man
Thanks
@@ChessCrafters-lk4dv no, I am the handsome man. I am.