Questions tagged [checkmate]

Questions relating to checkmating.

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What is the BN checkmate position that leads to a longest mate?

Black is trying to avoid a mating net that forces it into the wrong corner. To build the mating net, white king should cut the black king off the center first, by controlling the center itself. Black ...
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1answer
58 views

A certain game with a knight promotion checkmate

I once remember (this happened 2-3 years ago) one of my friends showing me a game that was about 20 moves long. It was maybe a little longer, but it definitely ended in the middle game. It ended with ...
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2answers
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What was the best move for white? Could white have won?

Could white have won this game? What was the best move in this position for white? Or could Black have won?
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Is the position in this trick question reachable?

I found this trick question on r/Anarchy chess:White to move, mate in two. [FEN "2R2RK/6PP/5P/3PN/P/1pQ3p/n1p1qbp/5brk w - - 0 1"] [StartFlipped "1"] The trick is that But is ...
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0answers
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How do I proceed in this opening as black in BugHouse?

I play bughouse pretty often, but I often end up in the following position (as black). [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+ Kxf7 5. d3 Nf6 6. Ng5+ In normal chess, it's pretty ...
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6answers
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Why is this a checkmate?

I'm new to chess and I'm confused about a puzzle I was practicing. As you can see my black queen has put the white king in check, but I'm confused how this is possible if a rook is right next to my ...
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3answers
5k views

Is there a double-forced mate position?

A usual forced mate position is where the winning player can play in a way that ensures checkmate, no matter what (legal) moves the opponent makes (unless the game ends due to a non-play reason, i.e. ...
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Can someone explain why this is checkmate for white? Can a king put another king into checkmate? [duplicate]

I am just learning to play chess so bear with me please :). I understand that the black king cannot move to d8 or f8 because of the white rook, nor d7 or f8 because of the white bishop. But why can it ...
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How is mate guaranteed - Bobby Fischer 134

I am working through Bobby Fischer Teaches Chess and #134 asks If White plays Rook-takes-Rook-check, can he mate? The answer is Yes, the mate is delivered by the white Queen. However, can't it be ...
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1answer
167 views

How is this position a checkmate?

In the photo below, it does not appear that I have the black king under attack. The next move that I made was my white queen to d8 and instantaneously I was told I had won by checkmate. How is this ...
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1answer
257 views

Is there really a checkmate after 1… Bxf5?

This puzzle on chesstempo caught my eye. We play as Black: [FEN "1r1r3k/7p/5Pb1/p2BpRpq/1pP5/1P1Q4/P5RP/7K w - - 0 1"] 1.Rgxg5 Note: the solution is not quite important here, so no large ...
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Is this an illegal chess move?

Can the White king move to g2 to checkmate? 8/8/8/8/4Q3/7k/5K2/8 w - - 0 1 1. Kg2
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2answers
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A mate in two problem

[FEN "8/8/4R3/8/2kBn3/K2pQ3/8/8 w - - 0 1"] 1. Re5? With White to move, here is a mate in two problem that I couldn't figure out. My opinion is that the first move is 1. Re5, but Black ...
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On an infinite board, which pieces are needed to checkmate?

Most of the winnable endgames require cornering the opposing king to checkmate, often using zugzwang. However, if you have an infinite board (infinite in every direction), you won't be able to corner ...
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1answer
158 views

Chess engine does not go for checkmate

I have made a chess engine that can play a decent game of chess. Like a lot of engines it uses a minimax search algorithm with alpha-beta pruning. It uses this simple evaluation function to assign a ...
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2answers
928 views

Why was this stalemate?

I'm new to chess and I don't have much knowledge. But I was playing a game as Black, and I was up by a lot of material and played Nxc4 to capture White's last bishop. The game ended in a stalemate, ...
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1answer
170 views

Can you help me with this serieshelpmate problem?

I found a different kind of problem, a serieshelpmate. I'm trying to get better by thinking outside of the box and solving different types of puzzles. So I found this one but I'm kind of stuck. [FEN &...
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2answers
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Unfinished Chess game between Viswanathan Anand and Garry Kasparov

I found many historic games unfinished. Take this match as an example. This is a match between Viswanathan Anand and Garry Kasparov in Ch World (match) (PCA) 1995. Anand lost this match as per the ...
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3answers
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Can someone tell me if this is a checkmate or stalemate?

[FEN "5rk/Q1p2p1p/4p1p/2Pq2b/3P2n/4P1Pb/PP1B1P1P/R2R2K w - - 0 1"] Apparently, the system says that it's checkmate, but I don't get it. Can someone please explain it?
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1answer
138 views

What is the fastest way to reach a position in which one side is forced to choose between checkmate and stalemate?

I had an interesting idea recently. While there are many proof games ending in checkmate or stalemate, why not both, I thought. So, thus I wondered, what is the fastest way to reach a position in ...
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How to solve this puzzle of Martin Gardner?

Martin Gardner mentioned the following "chess" problem in his column, Mathematical Games, for Scientific American (he got it from Smullyan, who learned about it from a high school math ...
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1answer
852 views

From Mate-in-3 to Mate-in-1

Here is my new problem in 3 steps - the key designates here the piece that moves first in the solution. An other way to reach a mate in one I hope you'll enjoy... [Title "From Mate in 3 to ...
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2answers
470 views

How many moves of head start does white need for a guaranteed win?

As we all know, it is not known whether white can always win in chess with optimal play. If, however, white got to make two moves before black made their first move would they be able to win with ...
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Another Unusual Mate in One

Here is another mate-in-one of my own i.e. a not quite usual one... [title "Mate in one"] [FEN "3b4/R3P3/2kPR1n1/P1p1n3/4K1p1/2Nr4/5p2/1b6 w KQkq - 0 1"] Imagine, you ...
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1answer
367 views

Mate in One the Missing King

The post "A mysterious mate in one" made me think of one of my last problems which is also a Mate-in-One with no black King: [Title "White to move and mate in one"] [FEN &...
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1answer
87 views

Using a check-preventing piece to protect the checkmating piece

Let's say that a piece is protecting my king from check, i.e. blocked or pinned. For example, my rook is in the way of my opponent's queen in checking my king. Can I checkmate their king with another ...
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2answers
131 views

A position with a choice between checkmate and perpetual check

For some odd reason I'm searching for a game, or rather a position, where one player can force a win via checkmate (can be check in n, where n is any number), but they can also force a draw via ...
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1answer
84 views

Where does the expression “checkmate” come from?

While watching The Queen's Gambit my partner asked me: why do they say "checkmate"? But she wanted to know what is the origin of this expression, not its meaning. And I realized I didn't ...
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1answer
213 views

Mate with both hands: Result?

Constructed case: In a tournament (LoC Tournament Rules apply, no rapid, no blitz) White plays d7-d8Q by placing the new Queen on d8 with the right hand and removing the pawn d7 with the left. White ...
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5answers
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A position with the only legal move resulting in checkmate

Theoretically, is it possible that for some position, the only legal move for a side leads to a checkmate (that is, the opposite king gets checkmated)? If so, has this ever occurred in a real game?
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1answer
148 views

Checkmate with 3 bishops vs 1 bishop

I know that you can mate with two bishops, but I do not know whether it is possible if White has 3 bishops, and Black has 1 bishop. Is there a general method? If so, is it possible for White to ...
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Two Knights checkmate [duplicate]

Even though there are positions on the chess board with two knights checkmate by bringing the king in the corner, why it is not possible to checkmate the King? Is it difficult to bring the opponent ...
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1answer
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Forced mate: 2 queens vs king

On the board, there are 2 queens (of the same color) placed on random squares. The opposing side has only a king, placed on a random square (and not in check). There obviously exists a mating sequence....
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9answers
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Why is it not a checkmate?

I am new to chess. I have tried to learn checkmate from the video lesson in chess24 website. There, in one question, it marked my answer wrong and said that it was not checkmate. Can anyone please ...
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3answers
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King+Knight vs King+Pawn checkmate

How is it possible for a King and Knight to checkmate a King and Pawn? I've composed a working position, but I am not sure if this can occur through a series of moves.
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1answer
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What is the maximum number of checked squares on a board that delivers checkmate without a draw?

I’ve long dreamt of delivering a “super checkmate”. Imagine that as his dying wish, when in checkmate, the king can magically transport himself to any open square on the board. What is the board ...
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1answer
359 views

What is the longest checkmate problem a human has composed?

Well, I looked at some long checkmates, and I wonder, what is the longest checkmate a human has composed?
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1answer
72 views

What is a good free interface to create and store positions?

I'm getting back into chess, and I'd like a way to create and store multiple chess positions to review. Specifically, I want to review and practice mating nets. There are a ton of chess tactics sites ...
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Forced mate in 'n' from opening [duplicate]

Advanced chess engines can report a forced mate (for some given position) within a huge number of moves. For example, mate in 40 or 50 is not unheard of. Theoretically, is it possible that there ...
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185 views

Rook+Knight Endgame-Play For Checkmate?

I found myself in this position as Black during a recent endgame situation with White to move. [FEN "8/7k/2R4p/2p3p1/2N2p2/P4PnP/1P2r1K1/8 w - - 4 43"] What is a good way to approach ...
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1answer
190 views

Checkmate without check beforehand

[Title "fucccommies-Diam0ndJake, chess.com, 7/8/2020"] [FEN ""] 1. e4 e5 2. Nf3 Nf6 3. d4 Nc6 4. d5 Nd4 5. c3 Nxf3+ 6. Qxf3 Be7 7. Bb5 O-O 8. O-O c6 9. dxc6 bxc6 10. Bc4 d5 11. ...
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1answer
260 views

How often do grandmasters fail to mate soon when mate in five or less is possible?

The recent question, How often do grandmasters miss checkmate? , turned out to be a bit broad. This question asks about a simple subset of that one, which I hope can be answered with some precision. ...
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How often do grandmasters miss checkmate?

Although top players are extremely good at finding checkmate, the number of permutations of moves in just 3 moves can be hundreds of thousands, and the farther out the possible mate (e.g. mate in 4, ...
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417 views

Can White defend and possibly win?

[FEN "1nkr2nr/pppp2pp/2b2p2/3q4/3P4/1NQ5/P1P2PPP/R1B1R1K1 w KQkq - 0 1"] Can White possibly win in this position and avoid a queen mate on g2?
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Checkmate with king, knight and bishop

Today I was playing on a game on chess.com. In that game I lost by time. [Event "azarigoli vs. vitthal20043"] [Site "Chess.com"] [Date "2020-06-11"] [White "azarigoli"] [Black "vitthal20043"] [Result ...
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1answer
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How many queens can be on the board without neither forced mate nor forced stalemate (53?)?

I was wondering how many queens can be put on boards without the position being a forced checkmate or a forced stalemate. The best I came up with is 53 this position. [FEN "QQQQQRK1/QQQQQPr1/...
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3answers
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Can a player resign after checkmating their opponent?

A friend of mine recently told me that once, he checkmated his opponent and then immediately resigned because he thought his win was unfair. This happened in a FIDE-rated tournament. Searching the ...
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1answer
78 views

Can one mate a lone king with Bishop and two knights without being aided by the attacking king?

In order not to overload the answer to this question, I split off the bishop+two knights part. So the question is: Is it possible to mate with a bishop and two knights without the help of the king?
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2answers
435 views

Which piece combinations can mate a lone king without being aided by the attacking king?

Clearly not a practical question since the king can and should be used in the endgame, but I was curious if anyone has done a comprehensive analysis of which combinations of pieces (including some ...
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1answer
314 views

Mate-in-10 that Stockfish missed!

Stockfish 10+ at depth 19 evaluated this position as a draw: [Title "White to play and mate in 10"] [FEN "r1b2r2/5pk1/pq2p3/1p5Q/3p1P2/P2Rn1NP/1P4P1/7K w - - 0 28"] However, it is actually checkmate ...

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