Position #2 is mindblowing. Literally every underpromotion works under a specific circumstance, and the queen is bad everytime. That's a truly incredible position to me, much more than the others.

@user-vv7gt2hu7p

Жыл бұрын

The Queen works if the king does not take the bishop. If it takes it, then promote to knight.

@neondeadlights5014

Жыл бұрын

@@user-vv7gt2hu7p nope. Queen never works.

@ValkyRiver

Жыл бұрын

@@user-vv7gt2hu7p If they don't take the bishop, promotion to a queen leads to stalemate.

@kevinmcknight5000

Жыл бұрын

What is crazy to me is that in position #2, after Bh7+ and Kg7, h6+ does not quite work. The reason is because of Kf6! where black ignores both the free pawn and bishop in order to threaten the e pawn as well as take the rook with the queen.

@ValkyRiver

Жыл бұрын

@@user-vv7gt2hu7p That position is drawn...? The pawn on h5 will be taken soon and R vs B endgame is a draw...?

Position #2...love that multi-faceted case where an underpromotion was the way to seal a win while queening likely blows it. 😁👍🏾

@pwnmeisterage

Жыл бұрын

Congratulations, soldier! You've exceeded all expectations. You've achieved the impossible. You defended friendly units. You defeated enemy units. You singlehandedly destroyed an enemy fortification. You're one of the last survivors of your unit. You ran the gauntlet of hell under enemy fire and still prevailed against all odds. We'd normally promote you to an officer rank. But we need a Corporal to win this battle. So you're a Corporal.

@lemmigalgalo8770

Жыл бұрын

@@pwnmeisterage is for problem

@zhihuangxu6551

Жыл бұрын

Normally a queen is strictly better than a rook or bishop (I thought only knight could work in some rare cases) but with the special rules of stalemate, we are presented this extreme case that it is not. Btw: In Asia we play Chinese chess where a stalemate would not be a draw but causing the player to move losing the game, so it is even more astonishing to me

@johnathanpatrick6118

Жыл бұрын

@@zhihuangxu6551 The player that would be stalemated is forced to make a move and would end up with a loss...ouch. Sounds cruel. 🤦🏾‍♂️😂

@zhihuangxu6551

Жыл бұрын

@@johnathanpatrick6118 Not exactly. The pieces and board of the Chinese Chess is very different. The "knight" cannot move to the two places in the direction where the immediate adjacent square is occupied, for example.

Those puzzles were completely mind-boggling. Especially the second one, where there are 3 underpromotions in the different variations. What this teaches us is to never give up. Even if a position looks completely hopeless there may be some kind of crazy winning move available on the board. Thank you so much for the amazing video!

@davidking4838

Жыл бұрын

Lesson #1 is Don't Give Up......Lesson #2 is Know When to Resign......😁

@note5068

Жыл бұрын

wait did you say never give up?? did I just get rick rolled?

@jonathanchristian3836

Жыл бұрын

More like never become too greedy and sometimes do not go for the best piece at some situations

@LNP618

Жыл бұрын

@@note5068 no never give up is missing "gonna"

I actually was able to solve position 1:D finally some progress!

I feel like theres a whole genre of chess puzzles that require underpromotion to prevent these weird stalemate traps, but Position #2 is maybe the coolest one of those I've seen

@aqua__ra

Ай бұрын

but theres a simple checkmate there. rock to g1 then king can only move to one square then promote pawn to queen checkmate

Third puzzle was the toughest. I got the first move on three of them. Feel good about that.

@ValkyRiver

Жыл бұрын

Puzzle 3 reminds me of some tsumeshogi problems

6:53 if we move the right side pawn to h6, and the king takes the h6 pawn, it seems to also create a winning move

@lemonady6203

Жыл бұрын

Doesn’t work cuz king f6 and u cant promote with check.

25:24 Thank you , your video really motivated me to think with you, try out the positions myself and have fun with chess and play it even though I'm not a good player at all. Great channel.

18:09 if anyone was wondering about the Qxf6 sub-line there it is: 2. ... Qxf6 3. exf6 Ke5 4. fxg7 ... 5. g8=Q 3. ... gxf6 4. f4 ... 5. c3# Edit: corrected the typo.

@akubukanpfyro

Жыл бұрын

When exf6, why Ke5? Not using pawn to eat?

@Amoeby

Жыл бұрын

@@akubukanpfyro I wrote it right under that line. If 3. ... fxg6 then 4. f4 and c3# is unstoppable.

@dirkrommeswinkel1765

Жыл бұрын

What about 3. ...QxN??? IF f4 Qxf4. Then what? 5. c3# Kxe5??? And then what?

@Amoeby

Жыл бұрын

@@dirkrommeswinkel1765 I'm really wondering if people can read the comment first before replying. I mean, my original comment literally starts with the answer to your question. Do you understand what 2. ... Qxf6 means? It means that black's queen captured something on the f6 square on the second move, in this case the knight was captured. This sub-line wasn't presented in the video and that's why I wrote my comment. If queen captures the knight then exf6 and white have two threats. The first threat is promotion to a new queen in the next 2 moves and the second one is mate in two if black responses to the first threat and recaptures gxf6 (this sub-sub-line is also mentioned in my original comment) or if black makes any other move except Ke5. So the best black can do is to move the king out of the mating net so Ke5 but then white's pawn promotes in two moves. If you cannot visualise it then set the position on the board and move the pieces according to the line by yourself.

@57thorns

Жыл бұрын

Appreciated this comment as I missed the f4 threat.

Sorry but isn't there a direct checkmate im position #2, on Rg1? After Rg1, it's a check. So the King is either forced to move to h8, or block it with the Queen or Bishop, which is useless and would lead back to h8. Then p×Rf8 and promotes to a Queen/Rook. Blocking with Bishop, again useless as R×Bg8 it would lead to a checkmate...

@rogueb1137

Жыл бұрын

After rg1 bg6 an escape route is created on f7, where the bishop was.

12:20 the human move here is Ng3+ followed by Ng4. It doesn't force mate quite as quickly, but your two knights and bishop and two pawns will win easily, without having to calculate the weird ending in the actual puzzle.

@Amoeby

Жыл бұрын

Well, I'd say it depends on time you have and your skill in calculating. If you have time than you can spend a bit to calculate the Nc3+ line.

@cephalosjr.1835

Жыл бұрын

Does that mean this position is cooked?

@maxscherzer9521

Жыл бұрын

@@cephalosjr.1835 it's a tricky mate in 7 vs a dead easy mate in 21 (per stockfish). In a real game, opponent would resign after you capture his pawn and still have BNNPP yourself.

@bolnet632

Жыл бұрын

@@maxscherzer9521 what does bnnpp mean?

@australium7374

Жыл бұрын

@@bolnet632 bishop knight pawn

You might wonder about the Knight in A8 in the third position, but that’s to prevent 6.Ke6 threatening 7.Nc3# mate with 6. … Nc6+

@Kat-dp4rh

Жыл бұрын

If the knight wasn't there, you could even play it at the beginning: 1. Ne8 Ke4 2. Ke6 then 3. Nf6#

Your channel is unique while comparing to other's. Keep up the good work. Hope I can improve the rating because of u.

15:47 No.4 Nice deflection by queen sac. I don't recall seeing that sort of deflection before. The sacrificing side forced the deflected piece not to block the king, or to unguard a square, or to unpin something, but to cross a critical square, ending up on the wrong side of it.

@alok28591

Жыл бұрын

Position 4 black is winning🏆💪 if we capture the knight with our queen 👑 we defend the mate theat and also got connected pown on the same time we got extra pown outside the board white king can't stop all our pown and defend his too

@daliborspinler5907

Жыл бұрын

@@alok28591 you missed pawn f4 after e5xQf6 and g7xf6 and black king has no move. And c3#

The knight one reminds me of the coolest thing I ever did in chess. I was playing against my computer and there was a big pawn structure from both sides. I managed to maneuver my knight and fork most of the computer’s pieces (by checking with my knight) before finally delivering checkmate. Every move I made was check

@davidcharles2001

10 ай бұрын

On the Internet Chess Club I onced checked an opponent 62 times!!!......in a row!!!!! He finally repeated the position 3 times and I claimed a draw. I told him my 62 consecutive checks was a personal record. I think that only pi$$ed him off further.

@AutPen38

5 ай бұрын

I think you can claim a draw if you do 50 moves without capturing a piece. Or you can just say "My name's Anish Giri" and claim a draw before the game even starts.

Position 4 gets really interesting if you decide to sac the queen for the knight. Getting the win for white gets tricky. as black has a lot of ways to spoil it. I originally analysed it missing a critical white pawn and was wondering if the study was flawed. Nope, just my eyesight :)

Hello, please make video about my composition. Here is the starting position: White: Kh3, Ne5, b5, d4, e6, c7, a7 Black: Kh8, Ne7, Bh1, Rc1. White to play and win

I have a question why in position 4 can't the queen capture the knight on f6?!?! D3 does not offer checkmate because the E5 pawn is not defended. If white plays f4 the Queen is free to capture f4?!? Please help what am I missing?! Figured it out exg6 if fxg6 F4 mate on D3 is unavoidable Forcing K e5 fxg7 and queens

The amazing position 5 when the rook moves to get ready to capture the pawn, can’t the rook move to B8 and check the king, then the pawn can promote

@johnathanpatrick6118

Жыл бұрын

If you're talking about the point after Nelson showed the possibility of Black castling the first time (1. a7 Rg3+ 2. Kxg3 h4+ 3. Kh3 0-0 4. Rb7 Rf3+ 5. K moves, Ra3 6. Rb8+ K moves; 7. a8(Q) Rxa8) it's winnable for White, but gotta watch out for knight forks. Any one of them happens and the position is drawn because a king and knight can't checkmate the opposing king.

At 15:54 surely pawn to C3 is an immediate check mate.

@Sans-the-truely-gamer

2 ай бұрын

Nope e pawn in unprotected

Position 2. Why can't we move the rook to g1? Then, in any scenario, we checkmate in 1-2 moves.

@PERFECT.587

6 ай бұрын

Because black's bishop can just go to g6 blocking the threat and white is just winning

one of the best positions and chess video i ever saw

Stuff like this is why I love chess. Such a strategic and in depth game.

I think some important variations have to be covered in the end of Puzzle number 4. If after Nf6 black plays either Qa8 or Qh8 then f4 does not work because black will give a check with the queen in g2 in the first case and in h2 in the second case. For this reason after Qa8 white should play Ng4 to protect the e5 pawn and the threat c3 to checkmate black's king is unstoppable. If black plays Qh8 (where he also threatens Qh6+ ruining whites position), then white has to play again Ng4 threatening again c3 with checkmate. The only way to avoid this checkmate for black is to play Qh6+ and white has to play Nxh6. If black captures the knings gxh6 then f4 and the threat c3 is unstippable. Thus the only way for black to continue the game is to play Kxe5 and then white has to save the knight by either playing Ng4 or Ng8 or Kf7 (I am not sure if all three are winning, but white has to be cautious because black has a passed pawn in the a row and some precision is required/ In a game I would play Ng4+ followed by Ne3 and then white may protect the f pawn with the king and play c3 and Nc2 having an easy win).

i love it man u got that pedagogy that i can see trough the moove b4 you explain them like i dont know if im genius or your just a good profesor, plus 1 sub !

12:20 I was thinking Ng3+ Technically not the best, but after the king moves you block the last pawn and every single piece is defended. Then you can promote one of the two pawns I suppose.

@i-himy1150

Жыл бұрын

Yes I was thinking the same

@Autrone

Жыл бұрын

Kenadian in a chess video????!!!!!

@Autrone

Жыл бұрын

I was thinking of Ng3 as well, not the best move but you could still win the position. I suggest opening the lichess analysis board, place the position and see what the opponent could do against your moves. I love your vids btw, gl with 100k subs!

6:53 I did Pawn H6 check. slower but I like it more because this puzzle was trying to force me to never promote to queen. Some black king moves lose to queen promotion this way without stalemate because the pawn is no longer blocking the Kg6 escape route.

on problem #4 you coulda just moved the pawn up and won when the knight was beside the king instead of making a queen at 16:50

@jakekorando7187

Жыл бұрын

The king could have taken at c4 or e5

@7pheonix

Жыл бұрын

yeah i see e5 now you right i retract my statement

@jakekorando7187

Жыл бұрын

@@7pheonix omg I’m so stupid I made a mistake correcting someone else when I was looking at the board!! 🤦🏻‍♂️

Great vids, as my end game play is still terrible and I never see these subtle plays.

Thank you. This is fantastic. After Nr 2 its enough for today, I have to continue tommorrow with the rest 👍🏻😀

6:56 The first time ive ever seen a good reason to pick a bishop over a queen.

Fing crazy Teacher Nelson awesome stuff...I Love it!👍🤯

Exciting to see someone get excited about these cool plays

For position two, I jokingly said exf8=B because it would be funny to promote to bishop. I didn't think that would be the actual solution!

I’ve legitimately been mind blown just in the morning and I feel really fresh now! Tysm

#2 the fork was actually kinda obvious, but I think if you promote to queen it still might work because you are up 3 points and black is kinda cramped in one side of the board

For position 1 wouldn't moving the king off the rim be the best first move? It lets you take any promotion with the bishop, and if black takes with rook, you aren't in check to promote

@Letalis12

Жыл бұрын

That was my solution. If they continue to check with rook you just move king down until there are no more options (as long as you don't block your bishop line). Eventually they promote and you trade with bishop and then white promotes and you have a pawn and queen to a rook

I love this video so much I can’t stop watching it 😊😊😊😊😊

13:00 And the knight draws the outline of a king around the enemy king! Talk about humiliation!

Great job explaining the positions

I love these videos, I feel I've learned more about chess in half a year than all my life. I have a question about position #2: why wouldnt white play Rg1+ as the first move? Black King has one square to go and then pawn promotion to queen with check and the rest is history?

@ChessVibesOfficial

Жыл бұрын

Black would play Bg6 which actually leads to a draw! Good question though

@rautapihanurukki8563

Жыл бұрын

@@ChessVibesOfficial oh yeah thats True. I didnt see that one. Thanks alot for the reply and keep making these fantastic videos bro. 💪😎

@smj460

Жыл бұрын

Can you show the draw? After Bg6 then white moves Bc4? King moves h7. Pawn takes rook to become queen.

Thanks they were amazing. In Position #4 time 17:17 when Knight blocked the queen the queen can capture the knight and f4 can not be played because queen can capture it and give check. The other pawn also can not give check because king can capture the pawn d5.

@vaibhavtalesara6107

Жыл бұрын

Bruh if queen takes knight then the pawn takes the Queen and it is a better position for white now

@ggaming8999

Жыл бұрын

Then c3#

@gerardomalazdrewicz7514

Жыл бұрын

...Qxf6 / exf6 gxf6 / f4 moves / c3 checkmate. But should have been explained.

@ggaming8999

Жыл бұрын

Qxf6 is pretty freaking obvious. Shouldn't need to explain why this leads to the same line hes explained 4 times already

@ggaming8999

Жыл бұрын

I guess nelson didnt expect 50% of this community to be brainlets

As a beginner, so glad I found this channel. Explanations so clear.

Position 2 is genuinely amazing. Love it.

In puzzle2, instead of underpromo to bishop, playing pawn to h6 check forces the capture of either the pawn or bishop on h6 or h7

King and Rook v King and Knight can be, according to Howard Staunton, a win for the King and Rook. Mind you,, it is a difficult checkmate.

(@20:33) - After 1 … Ra3, 2 Rb8+! K-moves, 3 a8=Q and black has to sack the rook for the newly promoted queen, or try to dance around with white’s king by giving check, while not getting captured by white’s rook or queen, which won’t work as the new queen guards the a-file, and the only other checking move with the rook is 3 … Rh3+??, 4 Kxh3. Black could try 3 … Nf5+, 4 Kg4 Nh6+, 5 Kf4 and - again - black has no useful checks here. (Or 3 … Nf5+, 4 Kg4 Ne3+, 5 Kh5! And black sucks on a dry well, as the knight now blocks the 3rd rank, and has no useful checks!)

Rg1+ is also a win for position 2 and yes then you can make a queen

Opening position #4 on May 28th 2022 position was winnable from the first move as the Black King had no place to go at the beginning.

@Barfaki

Жыл бұрын

The king can capture the pawn on E5!

Great video! Great puzzles! Thank you for posting this.

Position 1, if I had to guess, bishop to h1, blocking the pawn promotion. Rook takes but that also blocks his pawn and then white promotes to queen Edit, saw the second part of it, again, I assume white blocks the pawn with queen to h1 sacrificing the queen for the same combination, but this time when whites pawn promotes on a8, it also puts the king in check

For position 3, can’t you do knight on d6 to b5? Then you can move bishop or the knight depending on the square black king moves on?

Position 4: c3+ force moves Kxe5, then Nd7+ gives 4 options for the king, all of which are in check once f8 promotes

Yep...the ol' invite-the-N-check is a sub-motif found in various tt problems. And it's is a horrific thing to be exposed to...to know it can sometimes used as a way forward. The subtly associated with knowing when you need to incorporate such moves into your analysis is forever a frustrating one since often it turns out to be waste of time and energy. Invariably the time you blow it off...it blows up in your face. Phoqueing chess.

Position 2 is one mindblowing stalemate problem

Amazing second puzzle, but could you make a video about R+N vs R/N/B

in position 4 there is mate in one if you move to c3

#3,#4,and #5 were mindblowing.

Literally subbed on promotion to Knight on problem #2. You're amazing.

@ChessVibesOfficial

Жыл бұрын

Welcome!

position #1... never seen a crazy position like that, ever. I see the point behind Bh1 and Qh1. since the black king is on the a-file, the black rook can't stop the a-pawn from queening.

i'm not that great at chess , but on #5 i would trade rooks and work my king over to the pawn . i think you could force the knight to leave or you should be able to take it

Continued this vido today at #4: 16:20 Dude, pc3+... Nd7+ I came up with that, and after the checks we are getting a queen safely, with a fairly good position! That looked so sweet. Of course I'm wrong again... (perhaps I was doing too many small puzzles the last days). Because it's not the solution of the puzzle as i see when continuing your video 😞

@veefos

Жыл бұрын

I saw it too but after examining the position in lichess the solution that he is giving is %100 mate but your version is mostly a draw

@cloudyhamster

Жыл бұрын

@@veefos isnt c3 checkmate tho?

@tonym4953

Жыл бұрын

@@cloudyhamster that’s what I thought as well

@lukabojic3536

Жыл бұрын

Pc3 is mate

Thank you very much for this tutorial, im new to chess so, for me, this is mindblowing

In position 4 it doesn't seem like you need to block the queen off just go for c3 check right away. These are the best positions ever

@sc2cooptutorials679

Жыл бұрын

Then the king will capture the pawn on e5 and it's game over for white.

@willadean5168

Жыл бұрын

@@sc2cooptutorials679 they know that, they're just saying that looking at it they thought that that would work but then as he explained it in the video and understood that that isn't how that would go and how these positions are really cool

I've never really seen situations where the promotion wasn't a queen or knight and started from the same position.

I'm so proud that when I paused on 2 I found the bishop underpromotion

In position 2 when king moves to g7, push pawn to h6, if the king captures the pawn , u can promote to a queen and win

[edit: Okay #4 I watched the solution, gg] selfnote: 16:44 (2nd pause of puzzle 4) Honestly you gotta give a tip after pause, I tried now around a lot without hints or evaluation line and can't do it. For instance moving the knight to g5 to threaten check and moving your pawn doesn't seem to make sense because of the perpetual check and even mate if I check (king just runs towards me), I also tried pc3+ different check variations which simply ends up in losing all the central pawns, doing stupid stuff such as the king simply loses the past pawn, other variations: A fork on e6 couldn't be accomplished because of tempo of black, or "offering" the night on d6 as stupid as it looks (black could just ignore it, go for check or improve the positon elsewhere), won't work because black is up a turn in all cases. So 1. Ne4 wouldn't work for me personally I have no follow up plan, while as with 1.pc3+ 2.Nd7+ i would at least have gotten a queen and a decent position. So I really feel offering a hint after the pause instead of solving the turn right away would be quite sweet.

@alexanderxyz6146

Жыл бұрын

Selfnote: 18:20 second pause - "What's the move we play here?" edit: nice; I got that one 🙂

@Kambyday

Жыл бұрын

Or pawn to C3 for instant checkmate

position #2 : after Kg8 to g7, why not Rg1 ? What will black do ? taking the bishop or Kh8 ? Depending on the king's move, promote the pawn by taking the rook

@conget

Жыл бұрын

I was thinking the same. If Rg1+, Kh8, exf8, followed by either Qxg8 or Qg7 for white If Rg1+, Bg6, then Bc4+

Position#2... That's a thunder promotion🤯🤯

At 18:55 (the end of position 4) worth mentioning is: Black had Qh8 so white had to find the move Ng4 to protect h6 and e5

@rahuldhar7526

Жыл бұрын

What if in this position queen takes the knight

@simonbelte

Жыл бұрын

@@rahuldhar7526 Qxf6, exf, gxf, f4, a5/e5 or c6, c3#

what if in position #2, after the white pawn promotes to rook, what about moving the king from H8 to G7, there is nothing guarding that position, so moving there could still make for a game that black could win or at least draw, but i guess this was more to show that it isnt always necessary to promote to a queen

Position 2 is one of the best puzzles I've ever seen

#3 with the knights - amazing

I thought I saw an opportunity for an alternate play for position #2 before realizing there was an easy escape from it. I had thought that you could simply move the rook to g1, forcing the king into check. This leaves only three possible plays: blocking with the queen, blocking with the bishop, or fleeing to h8. Unfortunately if they blocked with the bishop, this leaves nothing the rook can do to force the king into checkmate because if you took the bishop, the only viable option to pressure the opponent and prevent them from setting up moves on you, the king could simply move to f7 and escape your grasp, ruining any chance for victory you may have had.

Absolutely mind blowing 🤯🤯🤯🤯🤯🤯🤯🤯🤯

In position #4 black could have taken the knight with the queen which would lead to 4 pawns vs 4 pawns.

While I a do see the beauty of the #5 puzzle to not have lost Castling privledges by that point seems super gimmicky. The other 4 look like they could be real positions from 1600ish games. #2 is worthy of a puzzle brillancy set up for having all 3 possible underpromotions be winning depending on the King move.

At 7:20 after sacrificing the bishop you can iive a check with the queen, you can sacrifice her and then get the queen.

Unmentioned trick in position number two 6:05 : u can move ur pawn to h6 and no matter what king does u promote queen or night on the next move

@kzkaa.

3 ай бұрын

That's a draw. After Kf6 and Rxd7, Black control the promotion square, win the bishop, and basically has defensive resources necessary to not get checkmated.

6:28 Your promotion to the bishop is much more elegant, of course, but in this position, white could check with Qg7. Black is forced to KxQ, then RxQ, pinning the bishop, forcing black to either a space where he allows the bishop capture, or, if he moves Kg8, , the pawn can move to a black space which might be winning for white. What do you think?

@interesting3956

Жыл бұрын

actually i think thats a draw w/ the king on h8 and the bishop shuffling, and there may be some stalemate traps with a pin on the 8th rank in the future. This is all speculation I have absolutely no idea but ill put it into an engine. Yes tablebase gives the following position a draw, which is crazy. With perfect play, the king and bishop can consolidate. However, tablebase says if the king were not on the first rank, but on the 4th rank instead, it is a win. Time is everything Edit #2: wow this is insane, if you just push the h pawn to deflect king from bishop, the king can stay on h8 if pawn goes to h7, and the bishop cannot be taken. The rook on 7th rank with pawn on h7 and opposing king on h8 is STALEMATE. beautiful.

Been here since the beginning and you are a huge help to my chess

On position 4 we could en passant c7 to b8 capturing b7

Awesome video dude! Those were crazy.

I think in position #3, white don't really need to play Nb5+ after Kd5. Probably the simplest is just Ng3+ to defend the promotion square and just chill. Next we can just move the other knight, kick the black king from d5 and push our pawn.

Position #2. Rg1, forcing the black king to go corner then, promote a queen and mate.

21:25 - It’s a double check - Nf5 and Rh8 are both checks.

I had a different plan in mind in position 2 it was rook to g 1 forcing him to take rhe bishop after that promoting the pawn into a horse forking the king and queen after that taking the queen and etc

on position #2 cant you first check the king at g1 with the rook (it cant be blocked by the bishop or the queen( the only square is H8 then you can take the rook with check by promoting to a rook or a queen with the only move to block with the bishop and mate next move?

@MrJezhk

Жыл бұрын

ok you can block with the bishop as it frees up the f7 square for the king and then no matter what you do you are losing the pawn (either for the rook or for the queen and hence will be a draw at best)

@selectivepontification8766

Жыл бұрын

That line of play would lead to 1. Rg1+ Bg6 2. Rxg6+ Kf7 And now you've lost your pawn and the king is no longer trapped. Possibly still winnable but black still has a queen and can threaten to draw by perpetual check.

@johnathanpatrick6118

Жыл бұрын

@@selectivepontification8766 Black could even get mating threats.

4 : 13 Rg1 check and kh8 , ef8 mate

You can promote to a queen if you follow up by sacrificing the queen on h8 to check the opponent’s king. Then you take the queen and win in a rook and bishop endgame.

@oenrn

Жыл бұрын

Rook vs bishop with king on the opposite colour corner is a draw.

For position #3, what's the role of the black Knight on a8? The way white win doesn't change with the presence or absence of this piece, does it? Or is there a variation where the Knight matters?

@IngieKerr

Жыл бұрын

I suspect its main role to make you wonder what its role is :) but more importantly, in the final mate, if it wasn't in that spot, the king could move c7, as it does at 14:24, then after knight c4, king b8, knight a6, king escapes to a8 where the black knight would had been, the attacking knight can do one more check at c7, but then has to run away or go into a repeating check draw

Puzzle 2 is fabulous

For position 2 when king takes bishop after h8 If you promote to queen you can force him to take it by moving to g7 and take his queen and rook vs bishop is winning endgame

4:15 Position 2 - Can someone explain why not rook to g1? That would put the king in check and give him three possible moves. The first one is to block with the queen, moving her to g4, but that wouldn't change anything because the rook could just take her putting black's king again in check. The second possible move is to block with the bishop, but then the rook takes the bishop and is also guarded by the pawn and the white bishop, so the king moves to h7 or h8. Then white promotes with the pawn also killing black's rook. If the king didn't move to h7 yet, he does it now. If he already is here, black can check white with bishop to a2, but then the king just takes. Anyways, black's king is currently on h7, so white moves the rook somewhere else, making a discovery check using the bishop. And that's actually mate because of white's queen. The third move is just to move the king to h8 (he can't move to h7 because of the bishop), but then it's mate in one as white promotes his pawn to a queen. To summary, the second possible move for black is mate in 4 or 5 moves (depending whether the king firstly moves to h8 or h7) and the third one is mate in two. The first one can just gain time for black, but will result in position 2 or 3 anyways. The answer in that Chess Vibes shows is fantastic, but isn't it simpler to just check with the rook?

@jovindsouza3407

11 ай бұрын

1. Rg1+? ...Bg6! 2. Rxg6+ ...Kf7

The second position is arguably the most beautiful chess puzzle I've ever seen. It looks as a completely natural set of pieces on the board. Was it ever achieved?

this is insane. A Puzzle that not only requires an underpromition, but all three underpromition in the three possible variations and there isn't even a variation when you want to promote to a queen. just wow

What surprises me the most is that, after the 5th position, I used the tablebase and saw that it doesn't work as long as castling is a available... It's quite exceptional that castling is still available when 7 pieces or less are on the board, but still...

@AutPen38

5 ай бұрын

I was really confused by that position, because it looked like an easy win for white. I thought "Just push the pawn up twice for mate. It's unstoppable. Black can do a pointless check with the rook to delay it for a move, but that's about it" and then Nelson revealed Black's follow up was castling, which I hadn't even considered, because no real game would ever reach such a weird situation where castling is still available.

@kzkaa.

3 ай бұрын

@@AutPen38 It could still happen in real game if both side agrees to reach this particular position, but yeah. The chance of it occuring in real game is slim.

last moves of last problem, white rook takes black rook in sacrifice, both rooks gone now.... pawn one square away from promotion,but square guarded by knight so white king advances step by step to chase knight away....not as elegant, but white gets new Q and wins.

Position 4#: if the Queen capture the horse after the horse block(f6) there is no check mate from white. And i think, even if white capture the black queen, black wins because the pawn in A line.