I still can't wrap my head around why starting with a preview is favorable for TH-cam statistics. How the hell can people be in such dire need of instant gratification that they want to both waste their time with an intro AND get a later part of the video spoiled? It just doesn't make sense (this isn't throwing shade on the video creator; he is doing everything by the book to have a more successful video).
ปีที่แล้ว +33
I'm not sure it's instant gratification. It could be like a "free trial", you see it's interesting right away so the risk of time being wasted on a boring video is lesser. It helps new viewers at the expense of existing viewers who already have different reasons to believe it's not boring.
Agreed. I nearly skipped the video after rewatching the first 5-10 seconds a couple of times and feeling confused. Just dispense with the preview nonsense, please. Or design a better preview, like a 1-second shot of each of the three scenarios we will see.
You can look at it that way, except that intro was like a movie trailer you wouldn't understand anyway without a starting knowledge about the characters (the starting puzzle position, in this case). It was just abiding to TH-cam's bullsh*t intro format, but not spoiling everything right away.
3:00 Interestingly Stockfish actually disagrees with moving the knight here. It says the best move is to promote the pawn and have the rook take it, as that delays checkmate by one move since it takes a different series of moves but it also opens up a lot of potential for more mistakes.
Puz 1: There's a reason why you can't go from g4 to g5 directly instead of g4 to g1 to g5, but it's not obvious. You should add that line. I missed the possibility of bishop sacrifice at first look. It's a clever defense by black
It's a very interesting defense indeed =) But if actually playing the situation, there wouldn't be any "damage" to the plan by moving g4->g5 that I can see. The only correct move would be to put bishop in front, and you could just move the rook back to g4 if faced with that, forcing black to move Bb3 again (since Bc6 as defense by black is quite powerfully stopped with white moving Kb6, shifting the checkmate threat to g8).
@@jean-rogernosecondname1281 yeah this was a cool one with stockfish, cause it wasn't able to find the checkmate moves here and there. Hehe. So it was a cool one to analyse. And also, as mentioned in other comments, best defense for Rg1 isn't Nc2, but rather sacrifice pawn in a e1=Q move. The defense I saw was worse, but still possible: Bd1
The Rg4-Rg1-Rg5 (instead of only Rg4-Rg5) maneuver is important for the end of the puzzle: after black played c5 and white responded with Kc7, then black would have the resource of Bd5, Rxd5, Nb3, but as the knight is already on c2, black can not play Nb3 any more, so the checkmate is undefendable.
You are right, he should have mentioned this. You mean 2:51 Rg1 e1=Q Rxe1 Bd1 Kb6 Bh5 Re7 Kb8 Rg7 Bf7 Rxf7 Ng6 Rg7 Nf8 Rg8 c2 or any other possible move Rxf8# checkmate
Yeah I agree. There isn't anything "forcing" black to defend by moving Nc2. Black "could" also defend with Bd1 (yes, it's worse, but was the one I thought of). But indeed, e1= is the better defense for black.
Puzzle 1: The best attack for white after 1:29 according to me would be: Kb6 and if black ignores the f7 pawn, and plays any move, then white plays following: Rg8+ forcing black to play Nf8 then Rxf8#
It cant happen because black has to take pawn on the f7 anyway, its not really a choice and that means rook g8 is not possible because of the bishop on f7.
Like Xszyr said, the black rook is pinned. A pin is when the own king would be in check if the piece or pawn moves away, this would be against the rules, so black can not go for checkmate.
First puzzle Why not Kb6, preventing the black king moving downside the board ? Next white move Rxd7, then Rd8. I don't think black can stop this checkmate or do I overlook something ?
Black promotes the e-pawn to a queen, and then there just isn't enough time to checkmate black before black starts checking white with their new queen. This is a win for black.
then you go Rg5 threat for checkmate on a5. Only way to stop it is Nb3 and after that white moves King to b6. The bishop is now trapped so he can't stop mate on g8 and it's still win for white ;)
Puzzle 1 was my favorite. It looks like white is losing due to black's defensive teamwork, but in the end, it was all a bamboozle anyway as white changes their direction of attack. Very nice video too!
I found a problem at the end you could sac your knight on g6 to prevent the rook from going to a5 and then you could cover the a6 square with ur bishop
Hi Nelson, I’ve watched your videos such as puzzles or gambit introductions for a few weeks and I like them much. I’m glad to join your live stream today, and I would like to know which country you are in so I can know more about you. I’m a chess beginner from Taiwan, and thank you for answering my question during the stream. 😀
In a game, I'd probably have missed the knight zugzwang on the 3rd puzzle. I was thinking Ra5 to threaten mate and then slide over to re-fork the lined up minor pieces.
10:23 in depth 50 in this position stockfish shows 0,00 but maybe there is a win but not under 50 moves rule. I've tried this puzzle without f6 pawn and this main winning line in that case is working but unfortunately after 1. b7 Rb2 however Nb5 is winning but f5 is than winning faster
4:53 black can play Ng6 first and if Rxg6 then d4 and after Kc7 Ka7 defends so I think the first puzzle is wrong. That's my calculations so idk if stockfish still finds a way to win
If you’re curious, it ends with White giving a perpetual check with the rook on the first and second rank. If White plays for more and isn’t careful, it can turn into a lost position.
@@electricmaster23 Thanks mate, that was not the point of my comment though. I think what makes puzzle videos good is the journey, not the end result. Otherwise the whole thing becomes pointless. He could just show the starting position and then everyone can go plug it into stockfish by themselves.
Nelson stockfish says that after Rook g1, black can save the game by playing e1=, and after many sacrifices it ends with rook vs a knigth and a pawn and it is a draw
Yeah... At 9:22, looks looks like "Stockfish Has Ruined Chess" once again, Nd4, sacrificing a black knight (not really) turns win for white into a draw.
There's an entire line missing from the first puzzle, and technically, black can survive longer this way. Nelson shows what happens if, after, white goes Rg1, black plays Nc2. But black can actually survive longer by queening (and sacrificing) the e-pawn. This leads to a dance between the white rook and black bishop before eventually checkmate on f8.
Pretty sure puzzle 2 is a draw after knight + rook vs queen, they're close enough to their king to make a fortress. I plugged it into stockfish and it says it's a draw with perfect play.
2:50 - why not the rook on g5 to thread a checkmate on a5? we cant move this way earlier because knight b3 and a5 is blocked for rook, but after bishop b3 knight cant move there, so white easily do a checkmate
'why not the rook on g5 to thread a checkmate on a5?' Doesn't threaten anything. Rg5 Bd5 if Rxd5, then Nb3 protects a5 and gives black the time to promote and start checking white.
In the first puzzle, what if, when it's Rg1, black continues with any promotional pawns on e1? RxE1, Bd1, RxD1, Nb3, and then? It supposed to be draw or maybe black win?
8:43 -- that's the Arabian mate. 😁😁 That introduction had me thinking as I saw the final of the 3 puzzles. All the while I'm going 'I don't wanna lose my rook, it's the biggest advantage I have, I can't blunder it to a knight fork!!'. Yet when I took another look at the fork, the more I realized that taking the bishop (Rxb7) was a great idea if I knew where to move next, and sure enough, knight takes rook, b4, and the knight is in jail. Where ya goin' knight?! Caught with your hand in the cookie jar!!🤣🤣
Interesting name. I wonder whether it goes back to before the modern rules of chess? (Bishops used to only move 2 squares diagonally but could jump over a piece, and instead of a queen, there was a piece that could only move one square diagonally. The knights and rooks get much stronger in that game.)
Puzzle 2 is a draw going by all best moves I literally sat there for 5 minutes playing around and found ways out of it but realistically wouldn’t happen to stockfish
I don't understand why you have to threaten the check on a1 with g1; The knight doesn't really seem to be a factor so this probably isn't about him, so I'm guessing you want to take the square away from the bishop, but why? I can't see it. I tried to simulate the position on the engine, but it doesn't play the right moves to show what the problem is with not playing g1 (it gives up early and start sacrificing everything).
Which point in the video are you talking about? If you are talking about the first puzzle, then, basically, this is how we prevent the threat of the e-pawn promoting to a queen, and, after that, Rxa1 threatens not just a check, but a checkmate, and forces black into a sequence of easy-to-analyse moves that lead to a checkmate regardless.
Sorry right at the start of puzzle 2 what if you just keep checking the king with the rook, if the king gos to the 3erd line you win a knight with a check, i guse the king could just doge back an forth on line 1 an 2 to close down on the rook, but it would change the puzzle intirly?
Alternative, maybe, rook to e7, black moves knight to f3 to stop the rook from getting to mate, pawn to f7, Bishop takes it, white takes pawn on e2, black doesn't have any good moves to prevent check and mate
I played white against stockfish and it did not move the knight when the rook went to g1. It first promoted the e2 pawn to a rook, which I took. Then it moved the bishop to d1 to block me from taking the knight. If I move the rook and don't take the bishop, then it can move right back to b3 and prevent my moving to a4. If I take the bishop, then the knight has room to move to b3, and I can no longer use a1 or a5 to attack the king. What are the right moves in this situation?
On the first puzzle, is Rg4 Bb3(/Bb5? /d5?)) and then f7 winning as well? Seems even easier as the bishop can't really take the pawn, adding a threat...
@@thetaomegatheta Oh wait, that wasn't my idea. If e1=Q, f7 seems threatening and the bishop is hanging and can't move. But the checks are too powerful: Qg3+ Kb6 Qf2+ picks up the pawn and taking f7 guards the bishop.
@@teambellavsteamalice 'If black checks Qg3+ Kb6 and you still threaten checkmate with Rc8#' Rxc4 Qg3+ Kb6 Qb8+ Ka5 Ka7 And your entire plan is ruined. Rc8 is no longer even a check, and going for Rc7+ loses you your rook. 'If e1=Q, f7 seems threatening and the bishop is hanging and can't move. But the checks are too powerful: Qg3+ Kb6 Qf2+ picks up the pawn and taking f7 guards the bishop' Yeah, there are many ways in which black can win the game from there.
Black blocks with the bishop, and then moves the knight from a1 to b3, which blocks the Ra5 mate, and gives black enough time to escape. This line seems to lead to a draw.
I'm commenting here at the end of the first puzzle. I paused to try to guess the right next move after each move and only guessed right once. That was mind-blowing (to me).
The cool thing about the first one is that on my pc stockfish didnt see the win until f7, only does see it on depth 30 and above, and us humans can solve it even 1500 like me
There are also "monsters", problems where White mates in a few hundred moves. Most chess engines would re-analyze (basically) the same position a few dozen times.
@@mfahz4067 Even if black sacrifice the pawn to lure the rook to the e file, which is the best black can do, it is still not drawn. You mean 2:51 Rg1 e1=Q Rxe1 Bd1 Kb6 Bh5 Re7 Kb8 Rg7 Bf7 Rxf7 Ng6 Rg7 Nf8 Rg8 c2 or any other possible move Rxf8# checkmate
I play the first against stockfish he destroy me lol cause in the third line after rook to G1 they make the pawn a bishop i let you see what happen next
According to Stockfish, the first one is a draw. After 3. Rg1, instead of 3...Nc2, Black goes for 3...e1=Q 4. Rxe1 Bd1 5. Rxd1 Nb3, and apparently the knight can perpetually defend.
It is not a draw because white don't take the bishop on d1. You mean 2:51 Rg1 e1=Q Rxe1 Bd1 Kb6 Bh5 Re7 Kb8 Rg7 Bf7 Rxf7 Ng6 Rg7 Nf8 Rg8 c2 or any other possible move Rxf8# checkmate
Hi Nelson, so i tryed my self the frist puzzle against stockfish and after rock g1 stockfish didn't play knight c2 but queen up deflecting the rock but still is a puzzle (M8) not as good but the rock moviment is very interesting. I enjoyed very much this video, i appreciate your work.
The puzzles and the livestream were amazing. In the second puzzle I didn't consider the line that Stockfish found. I still however think it is a win for white regardless.
I still can't wrap my head around why starting with a preview is favorable for TH-cam statistics. How the hell can people be in such dire need of instant gratification that they want to both waste their time with an intro AND get a later part of the video spoiled? It just doesn't make sense (this isn't throwing shade on the video creator; he is doing everything by the book to have a more successful video).
I'm not sure it's instant gratification. It could be like a "free trial", you see it's interesting right away so the risk of time being wasted on a boring video is lesser.
It helps new viewers at the expense of existing viewers who already have different reasons to believe it's not boring.
Agreed. I nearly skipped the video after rewatching the first 5-10 seconds a couple of times and feeling confused. Just dispense with the preview nonsense, please. Or design a better preview, like a 1-second shot of each of the three scenarios we will see.
He's just trying different things to see how it goes it most likely won't stay anyway
You can look at it that way, except that intro was like a movie trailer you wouldn't understand anyway without a starting knowledge about the characters (the starting puzzle position, in this case). It was just abiding to TH-cam's bullsh*t intro format, but not spoiling everything right away.
I want the instant gratification of seeing the puzzle from the thumbnail
3:00 Interestingly Stockfish actually disagrees with moving the knight here. It says the best move is to promote the pawn and have the rook take it, as that delays checkmate by one move since it takes a different series of moves but it also opens up a lot of potential for more mistakes.
Puz 1: There's a reason why you can't go from g4 to g5 directly instead of g4 to g1 to g5, but it's not obvious. You should add that line. I missed the possibility of bishop sacrifice at first look. It's a clever defense by black
It's a very interesting defense indeed =) But if actually playing the situation, there wouldn't be any "damage" to the plan by moving g4->g5 that I can see. The only correct move would be to put bishop in front, and you could just move the rook back to g4 if faced with that, forcing black to move Bb3 again (since Bc6 as defense by black is quite powerfully stopped with white moving Kb6, shifting the checkmate threat to g8).
@@arsenic1987 Oh I completely missed that thx... stockfish struggles a bit haha
@@jean-rogernosecondname1281 yeah this was a cool one with stockfish, cause it wasn't able to find the checkmate moves here and there. Hehe. So it was a cool one to analyse. And also, as mentioned in other comments, best defense for Rg1 isn't Nc2, but rather sacrifice pawn in a e1=Q move. The defense I saw was worse, but still possible: Bd1
The Rg4-Rg1-Rg5 (instead of only Rg4-Rg5) maneuver is important for the end of the puzzle: after black played c5 and white responded with Kc7, then black would have the resource of Bd5, Rxd5, Nb3, but as the knight is already on c2, black can not play Nb3 any more, so the checkmate is undefendable.
Puzzle 1:
You should add the line after 3. Rg1 e1=Q
4. Rxe1 Bd1!
I think this looks just as good as the one in the video
You are right, he should have mentioned this.
You mean 2:51
Rg1 e1=Q
Rxe1 Bd1
Kb6 Bh5
Re7 Kb8
Rg7 Bf7
Rxf7 Ng6
Rg7 Nf8
Rg8 c2 or any other possible move
Rxf8# checkmate
Yeah I agree. There isn't anything "forcing" black to defend by moving Nc2. Black "could" also defend with Bd1 (yes, it's worse, but was the one I thought of). But indeed, e1= is the better defense for black.
4:53 what if black plays ng6 first?
Rook takes knight, d-pawn advances, Rd6, black delays a mate with a bishop for a turn, then white mates anyway.
Puzzle 1:
The best attack for white after 1:29 according to me would be:
Kb6 and if black ignores the f7 pawn, and plays any move, then white plays following:
Rg8+ forcing black to play Nf8 then Rxf8#
Yeah exactly, I don't see how this would go wrong(correct me if i was wrong)... i was wondering this move at the very beginning
It cant happen because black has to take pawn on the f7 anyway, its not really a choice and that means rook g8 is not possible because of the bishop on f7.
Trapping the knight when there's no other pieces on the board, now I've seen everything
9:04 Why didnt black go for checkmate??? Sorry for dumb question?
The black rook is pinned.
Like Xszyr said, the black rook is pinned. A pin is when the own king would be in check if the piece or pawn moves away, this would be against the rules, so black can not go for checkmate.
Got it, thanks
First puzzle
Why not Kb6, preventing the black king moving downside the board ?
Next white move Rxd7, then Rd8. I don't think black can stop this checkmate or do I overlook something ?
Black promotes the e-pawn to a queen, and then there just isn't enough time to checkmate black before black starts checking white with their new queen.
This is a win for black.
3:00 what happens if black plays bishop to d1
Fax
then you go Rg5 threat for checkmate on a5. Only way to stop it is Nb3 and after that white moves King to b6. The bishop is now trapped so he can't stop mate on g8 and it's still win for white ;)
Not fax at all
Great puzzles. Love the ones with fewer pieces especially
9:46 I came up with the move nc7, is there anything I’m missing that makes na7 better? I had the same idea in mind but mirrored.
Puzzle 1 was my favorite. It looks like white is losing due to black's defensive teamwork, but in the end, it was all a bamboozle anyway as white changes their direction of attack. Very nice video too!
I found a problem at the end you could sac your knight on g6 to prevent the rook from going to a5 and then you could cover the a6 square with ur bishop
Hi Nelson, I’ve watched your videos such as puzzles or gambit introductions for a few weeks and I like them much. I’m glad to join your live stream today, and I would like to know which country you are in so I can know more about you. I’m a chess beginner from Taiwan, and thank you for answering my question during the stream. 😀
In a game, I'd probably have missed the knight zugzwang on the 3rd puzzle. I was thinking Ra5 to threaten mate and then slide over to re-fork the lined up minor pieces.
Knight and Rook checkmate is called:Arabian Mate.
You should probably make a video about this.
10:23 in depth 50 in this position stockfish shows 0,00 but maybe there is a win but not under 50 moves rule. I've tried this puzzle without f6 pawn and this main winning line in that case is working but unfortunately after 1. b7 Rb2 however Nb5 is winning but f5 is than winning faster
I think depth 50 are 25 moves for each player
4:53 black can play Ng6 first and if Rxg6 then d4 and after Kc7 Ka7 defends so I think the first puzzle is wrong. That's my calculations so idk if stockfish still finds a way to win
NVM, I need to recalculate
White has the time to go Rd6, after which there is not much blocking possible.
After Ng6 Rxg6, d4. Its Rd6,
14:02 Knight Trap! Nice reference there.
For Puzzle one, King to B6, then Rook to G8 is forced checkmate, and black cannot stop it
Bishop takes Rook G8, but I also saw King B6 and then Rook E7, which would lose the Queen and still end up mate
For the clickbait, you move the king, you move the tower, you do a checkmate
These are unbelievable puzzles! especially the last one when you trap his knight with a king and a pawn
damn didnt expect that that fork in puzzle 3 was just bait. wow
I like the puzzle #2, the position is very much gamelike as for such puzzles.
These are my fav videos from you. I would even like you to use stockfish on a greater depth and explain how to get the draw in puzzle 2.
Thanks mate.
If you’re curious, it ends with White giving a perpetual check with the rook on the first and second rank. If White plays for more and isn’t careful, it can turn into a lost position.
@@electricmaster23 Thanks mate, that was not the point of my comment though. I think what makes puzzle videos good is the journey, not the end result. Otherwise the whole thing becomes pointless. He could just show the starting position and then everyone can go plug it into stockfish by themselves.
@@spindoctor6385 oh, I get your point, believe me. I agree it would have been interesting.
at 2:13 why cant play Rook g1
its like
black: i traped your rock
white: then i trap ur queen
Chess puzzles are so much fun! They almost never represent a position that would come up in actual play, but you still learn so much from them.
Nelson stockfish says that after Rook g1, black can save the game by playing e1=, and after many sacrifices it ends with rook vs a knigth and a pawn and it is a draw
Tomas, you need to include a timestamp. Otherwise how is anyone going to know at what point in the puzzle you are referring to.
You mean 2:51
Rg1 e1=Q
Rxe1 Bd1
Kb6 Bh5
Re7 Kb8
Rg7 Bf7
Rxf7 Ng6
Rg7 Nf8
Rg8 c2 or any other possible move
Rxf8# checkmate
Yeah... At 9:22, looks looks like "Stockfish Has Ruined Chess" once again, Nd4, sacrificing a black knight (not really) turns win for white into a draw.
8:46 Arabian mate
There's an entire line missing from the first puzzle, and technically, black can survive longer this way. Nelson shows what happens if, after, white goes Rg1, black plays Nc2. But black can actually survive longer by queening (and sacrificing) the e-pawn. This leads to a dance between the white rook and black bishop before eventually checkmate on f8.
Pretty sure puzzle 2 is a draw after knight + rook vs queen, they're close enough to their king to make a fortress. I plugged it into stockfish and it says it's a draw with perfect play.
Is it not in a tablebase somewhere?
2:50 - why not the rook on g5 to thread a checkmate on a5? we cant move this way earlier because knight b3 and a5 is blocked for rook, but after bishop b3 knight cant move there, so white easily do a checkmate
'why not the rook on g5 to thread a checkmate on a5?'
Doesn't threaten anything.
Rg5 Bd5
if Rxd5, then Nb3 protects a5 and gives black the time to promote and start checking white.
Puzzle 1:
I think Pf7 can be replaced with Rf1, Nf3, then Pf7, Nxf1, Pf8 > Q check, Kf7, Qa3 check, Ba6, Qc5 check, Ka8, Qf8 check, Kf7, Qb6 mate.
12:14 Why not Be6+?
How do you deal with Kf6 and the potential Re1 or Kg6 after that?
11:00 maybe because both have 11 points of material (1 queen+2 pawns=1 knight+1 rook+3 pawns=11)
Stockfish is smarter than that.
I like how "this guy becomes a queen" is the winning move repeatedly
7:54 why then not just take the knight on b5? And then the pawn on b7?
In the first puzzle, what if, when it's Rg1, black continues with any promotional pawns on e1?
RxE1, Bd1, RxD1, Nb3, and then? It supposed to be draw or maybe black win?
After Bd1 don't take the bishop, just threaten a back rank mate with Kb6
You mean 2:51
Rg1 e1=Q
Rxe1 Bd1
Kb6 Bh5
Re7 Kb8
Rg7 Bf7
Rxf7 Ng6
Rg7 Nf8
Rg8 c2 or any other possible move
Rxf8# checkmate
8:43 -- that's the Arabian mate. 😁😁
That introduction had me thinking as I saw the final of the 3 puzzles. All the while I'm going 'I don't wanna lose my rook, it's the biggest advantage I have, I can't blunder it to a knight fork!!'. Yet when I took another look at the fork, the more I realized that taking the bishop (Rxb7) was a great idea if I knew where to move next, and sure enough, knight takes rook, b4, and the knight is in jail. Where ya goin' knight?! Caught with your hand in the cookie jar!!🤣🤣
Interesting name. I wonder whether it goes back to before the modern rules of chess? (Bishops used to only move 2 squares diagonally but could jump over a piece, and instead of a queen, there was a piece that could only move one square diagonally. The knights and rooks get much stronger in that game.)
Why in 2 black cant to fully ignore pawn?
Position №3 is amazing. Move b4! is cell for knight. Thanks!
Amazing puzzles solved puzzle 1 immediately. The rook and knight mate is called Arabian mate.
13:50 cant the knight go to a5, or will the pawn make a queen even on the a file
Pawn just takes the knight, and then proceeds unopposed. Going to a5 achieves nothing.
@@thetaomegatheta pawn on a or h files and two kings is a draw, but only if the black king can get there fast enough
@@deelker916 And the black king has no way of getting there in time.
1st puzzle:
e2 black pawn: I'm going to become a queen!
white rook: No, you're not
For puzzle 3, after Ra1, what if black plays Be6+ ?
Puzzle 2 is a draw going by all best moves I literally sat there for 5 minutes playing around and found ways out of it but realistically wouldn’t happen to stockfish
I don't understand why you have to threaten the check on a1 with g1; The knight doesn't really seem to be a factor so this probably isn't about him, so I'm guessing you want to take the square away from the bishop, but why? I can't see it.
I tried to simulate the position on the engine, but it doesn't play the right moves to show what the problem is with not playing g1 (it gives up early and start sacrificing everything).
Which point in the video are you talking about?
If you are talking about the first puzzle, then, basically, this is how we prevent the threat of the e-pawn promoting to a queen, and, after that, Rxa1 threatens not just a check, but a checkmate, and forces black into a sequence of easy-to-analyse moves that lead to a checkmate regardless.
loved the knight trap!
Sorry right at the start of puzzle 2 what if you just keep checking the king with the rook, if the king gos to the 3erd line you win a knight with a check, i guse the king could just doge back an forth on line 1 an 2 to close down on the rook, but it would change the puzzle intirly?
Why not bishop d1 instead of knight c2?
3:57 Why not play directly now rook to G5?
Black sacrifice the bishop
Alternative, maybe, rook to e7, black moves knight to f3 to stop the rook from getting to mate, pawn to f7, Bishop takes it, white takes pawn on e2, black doesn't have any good moves to prevent check and mate
At what point in the video?
Excellent video. Thanks
After the fork black can capture the queening pawn
I played white against stockfish and it did not move the knight when the rook went to g1. It first promoted the e2 pawn to a rook, which I took. Then it moved the bishop to d1 to block me from taking the knight. If I move the rook and don't take the bishop, then it can move right back to b3 and prevent my moving to a4. If I take the bishop, then the knight has room to move to b3, and I can no longer use a1 or a5 to attack the king. What are the right moves in this situation?
On the first puzzle, is Rg4 Bb3(/Bb5? /d5?)) and then f7 winning as well?
Seems even easier as the bishop can't really take the pawn, adding a threat...
Rg4 e1=Q
White has no threat of mate in this position, while black now has a queen. That line is a win for black.
@@thetaomegatheta
What's different, Rxc4 threatening mate on a4. If black checks Qg3+ Kb6 and you still threaten checkmate with Rc8#.
@@thetaomegatheta
Oh wait, that wasn't my idea.
If e1=Q, f7 seems threatening and the bishop is hanging and can't move. But the checks are too powerful: Qg3+ Kb6 Qf2+ picks up the pawn and taking f7 guards the bishop.
@@teambellavsteamalice
'If black checks Qg3+ Kb6 and you still threaten checkmate with Rc8#'
Rxc4 Qg3+
Kb6 Qb8+
Ka5 Ka7
And your entire plan is ruined. Rc8 is no longer even a check, and going for Rc7+ loses you your rook.
'If e1=Q, f7 seems threatening and the bishop is hanging and can't move. But the checks are too powerful: Qg3+ Kb6 Qf2+ picks up the pawn and taking f7 guards the bishop'
Yeah, there are many ways in which black can win the game from there.
In the first puzzle what happens when black plays Ka7 on the first move after f7
White gets to promote
Oh yeah. Black doesn't have time to promote as well because of the threat of mate in two
Hey, can you explain what would happen if in puzzle 3 you move the pawn already?
8:43 I think its called the arabian mate.
Really cool puzzles. Chess is truly inexhaustible.
Yes it is
I've commented elsewhere about where that name might have come from (the old rules of chess).
The stream was so fantastic broo🤩
Last night i worked on the first one and actually found a different but similar sequence
1:09 wat if queen blocks
Blunders a queen. White takes with their queen.
Puzzle 2: pawn to b7 is the only way to prevent checkmate by the way. Otherwise black would move to h4, thus trapping the king for its rook.
How about 1st black move rook a2-a1?
hard not to appreciate all these Knightmarish sequences
2:43 why not rook to g5?
Black responds with pawn to f5
First puzzle what happens after Bd1 instead of Knc2
I see 🙈
This 2nd Puzzle is interesting if Stockfish thinks it is a draw at 11:10 position.
Hmmm maybe let Stockfish duke it out with another Stockfish?
In puzzle #1, it appears that Rg1 is superfluous -- White just plays Rg5 right away. In puzzle #2, the name of the mate is Arabian.
The last one was really nice
2:06 Why not just rook G1, guarding the pawn and threatening checkmate?
I guess they can move the knight to protect a1 but then we go e1 to threaten the pawn.
Oh, but they then protect the pawn with the bishop.
2:48 Oh, and now the rook G1 idea works. Nice!
Now we can go to E1 right away because the Knight can move to C2.
i went to depth 45 from the final position of puzzle 2 and it still says its a draw so i think its really a draw
After Nd4 instead of Rg1+? SF says draw at depth 60(was too lazy to run it for more as result is obvious). Analysis by Stockfish dev-20230102-fc5b59b8:
8.Qb8-b7 d5-d4 9.Qb7xe7+ Kb4-c3 10.Qe7-c5+ Kc3-d2 11.h2-h4 d4-d3 12.h4-h5 Nb5-c3 13.h5-h6 Rb1-b5 14.Qc5-f2+ Kd2-c1 15.Qf2-g3 Kc1-c2 16.h6-h7 d3-d2 17.h7-h8Q d2-d1Q 18.Qh8-c8 Qd1-e2+ 19.Qg3-f2 Qe2xf2+ 20.Kg2xf2 Kc2-d3 21.Qc8-e6 Nc3-e4+ 22.Kf2-f3 f6-f5 23.Qe6-a6 Kd3-c4 24.Qa6-c8+ Rb5-c5 25.Qc8-g8+ Kc4-d3 26.Qg8-d8+ Kd3-c2 27.Kf3-e3 Rc5-c3+ 28.Ke3-e2 Ne4-g3+ 29.Ke2-f2 Rc3-d3 30.Qd8-c8+ Kc2-d1 31.Qc8-e6 Ng3-e4+ 32.Kf2-g1 Rd3-g3+ 33.Kg1-h2 Kd1-e2 34.Qe6xf5
The position is equal: = (0.00) Depth: 60/54 00:00:37 488MN, tb=7610536
5:38 what if that pawn became a Queen?
Instead of the bishop preventing a mate in 1? Mate in 1 with Ra5 would happen.
2:42 why can't we just go Rg5? The only way black can stop mate in 1 is to block with knight, and still get a mate
Black blocks with the bishop, and then moves the knight from a1 to b3, which blocks the Ra5 mate, and gives black enough time to escape. This line seems to lead to a draw.
@@thetaomegatheta yeah, I have looked at it. Thanks!
I'm commenting here at the end of the first puzzle. I paused to try to guess the right next move after each move and only guessed right once. That was mind-blowing (to me).
1)f7 -- Bxf7; 2)Rg4 & Ra4 ch mate unstoppable
13:22 why not ke6
Nice! Puzzles!
The cool thing about the first one is that on my pc stockfish didnt see the win until f7, only does see it on depth 30 and above, and us humans can solve it even 1500 like me
There are also "monsters", problems where White mates in a few hundred moves. Most chess engines would re-analyze (basically) the same position a few dozen times.
for puzzle 1, after Rg1, doesn't Bd1 work?
plz answer
Bd1 doesnt work bc of Rg5
the position is drawn
@@mfahz4067
Bd1 doesn't work because Kb6 sets up a mate in 1.
The position is not drawn at all.
@@mfahz4067 Even if black sacrifice the pawn to lure the rook to the e file, which is the best black can do, it is still not drawn.
You mean 2:51
Rg1 e1=Q
Rxe1 Bd1
Kb6 Bh5
Re7 Kb8
Rg7 Bf7
Rxf7 Ng6
Rg7 Nf8
Rg8 c2 or any other possible move
Rxf8# checkmate
puz 1: why we cant just in our first move move king on b6 and then rook on g8?
Because the bishop is protecting the g8 square
I just made my first puzzle and I'm not exactly sure how to publish/share it. Does anyone have any advice ?
Yt shorts, I think?
Post the FEN here? ("Poor man's copyright")
I play the first against stockfish he destroy me lol cause in the third line after rook to G1 they make the pawn a bishop i let you see what happen next
After the pawn promotes to a bishop or a queen, white still wins after taking that bishop/queen.
Mind-blowing!
11:22 Knight's finish?
He said pretty nice finish ;)
@@lenalittle4193 He missed the opportunity for a pun
8:42 It's called the Arabian Checkmate
In the first puzzle, What about king to B6. And rook to g8?
Bxg8
According to Stockfish, the first one is a draw. After 3. Rg1, instead of 3...Nc2, Black goes for 3...e1=Q 4. Rxe1 Bd1 5. Rxd1 Nb3, and apparently the knight can perpetually defend.
After Nc2 the engine shows that it's a mate in 5.
f7 Bxf7
Rg4 Bb3
Rg1 e1=Q
Rxe1 Nc2
Re5 d5
Kb6 Ba4
Rxd5 Bd7
Rxd7 Na1
Rd8#
What is the FEN code of the position that Stockfish evaluates as a draw?
It is not a draw because white don't take the bishop on d1.
You mean 2:51
Rg1 e1=Q
Rxe1 Bd1
Kb6 Bh5
Re7 Kb8
Rg7 Bf7
Rxf7 Ng6
Rg7 Nf8
Rg8 c2 or any other possible move
Rxf8# checkmate
@@lenalittle4193 Wow, Stockfish fails once again
Chess vibes: brilliant moves every turn, how do you win?
Me and my opponents: blunders every other turn, how do I win?
Instead of bishop to b3 in 1st puzzle, how about pawn to c4 to block rook?
Pawns don't go backwards.
in the first one why not king to b7 and then checkmate with the rook?
Last puzzle kinda looks like mine puzzle, i had same idea with pawn
Hi Nelson, so i tryed my self the frist puzzle against stockfish and after rock g1 stockfish didn't play knight c2 but queen up deflecting the rock but still is a puzzle (M8) not as good but the rock moviment is very interesting.
I enjoyed very much this video, i appreciate your work.
I did not see that the knight got trapped at the end. Interesting position.
The puzzles and the livestream were amazing. In the second puzzle I didn't consider the line that Stockfish found. I still however think it is a win for white regardless.
Anyone from the livestream?
On puzzle 1 , there was a mate in 2
Where?
Nowhere
In the second puzzle after the black knight to d4 the white knight can take it and white wins