Questions tagged [checkmate]

Questions relating to checkmating.

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5
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3answers
3k views

Do the rules of chess state that a Bishop+King can be sufficient mating material?

A famous recent example of this ending happened last year between Carlsen and Firouzja. Here, Firouzja time ran out, so Carlsen won [Title "Alireza Firouzja-Magnus Carlsen, World Blitz Championship,...
2
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1answer
129 views

What is an example of a very difficult one-move checkmate? [closed]

Usually one-move checkmate puzzles are easy. However, I am wondering if there is a relatively more difficult one-move checkmate puzzle. Here are a few thoughts: There are many legal moves. One or ...
0
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2answers
117 views

Is there a way to prove a checkmate in 3 puzzle is not solvable?

I have been working on a checkmate-in-3 puzzle for a long time. So long that I am becoming convinced it is not solvable. Is there a way to prove it is not solvable? I want to avoid putting the ...
3
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1answer
137 views

What is the longest tablebase win that includes draw rules?

It has been asked the longest mate that includes draw rules is, and it is known what the longest tablebase mate is. However, what is the longest tablebase mate, i.e. 7 pieces or less, that accounts ...
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0answers
23 views

What is the longest amount of moves before an inevitable checkmate? [duplicate]

When most pieces are gone, inevitable checkmates often occur and are usually presented in the form x moves until checkmate. However, what is the biggest valid possibility of x. (By valid I mean that ...
10
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1answer
3k views

Why did black resign in this game?

Watching this video, it seemed after the highlighted point in the video that black was doomed, but from my view it was just materiel? After the exchange, white would have taken a rook and the queen (...
5
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1answer
2k views

Why does the black king evade to f8, and not to h7?

I'm trying to practice with the app https://f-droid.org/en/packages/jwtc.android.chess Why does the black king go to f8, and not Kh7 instead? [FEN "r2rb3/1p2RBk1/2pP1ppR/p7/P7/7P/1q3PP1/3Q2K1 w - - ...
3
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1answer
1k views

Illegal move or checkmate? [duplicate]

I was playing chess with an opponent. He had his queen in front of his king. I attacked the queen and he moved her, exposing his king directly to my rook. It was my turn to move, not his. We couldn't ...
2
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1answer
978 views

Would an erroneous claim of mate be considered as annoying the opponent, cheating, an illegal move, or something else

Especially in kiddie games mates are often missed or supposed mates are not really mates. What would the TD declare such misguided claims of mate? What should a TD do if adults did the same thing?
10
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2answers
207 views

Inaccurate checkmates?

So, in a tournament, my daughter recently had a case where her opponent made a move and declared checkmate. She acquiesced, shook his hand, and then realized it wasn't actually a checkmate. They ...
19
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4answers
8k views

What's the etiquette for giving checkmate on board?

I wonder what is considered to be a polite way of giving mate on board. Should one announce the checkmate? If so, should one press the clock after making the move, or stop it, or simply do nothing? ...
4
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2answers
181 views

What's this mate called?

I've blundered and had this played on me before. Is there a specific name for the mate? [FEN "8/8/8/8/1n6/8/qPP5/1KR5 w - - 0 1"]
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2answers
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Why does Lichess mark this move as “?!”?

I was looking at this game on Lichess, where it says "Checkmate is now unavoidable. Best move was Kc4." As far as I can tell, checkmate was already unavoidable, including after Kc4. Namely, Black can ...
4
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1answer
120 views

Is this checkmate?

[fen "3Q4/8/k7/5p2/q2p1Pp1/2p3P1/K1P5/3R4 w - - 0 1"] I recently started playing chess and was doing some puzzles online. It says that this move is checkmate but I don't see why white can't move to ...
3
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2answers
314 views

Which is better, going for checkmate, or forcing immediate resignation?

Let's say you have a position where you can win the opponent's queen in one move and you know he will resign; or you play a combination that is technically stronger since it forces mate, but it takes ...
2
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1answer
60 views

A position in which there is no possible checkmate [duplicate]

I saw the game Firouzja vs Carlsen in world blitz championship in which Carlsen flagged Firouzja. Carlsen won because even though he had only a bishop, there could be a possible mate position. I am ...
7
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6answers
4k views

Moving into check for a draw as black, why is it illegal? Comparison to Racing Kings

I am confused why you cannot move into a check when it can force your opponent to capture your king and expose theirs. In such a case why is there no extra move to result in a draw? In the "Racing ...
2
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2answers
354 views

What is the farthest away a game can be from a guaranteed checkmate?

What is the maximum number of moves away from checkmate that a player can be where checkmate is guaranteed? There are many positions that are a guaranteed win for a player if played perfectly right? (...
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1answer
133 views

What kind of checkmate pattern is this?

I played this game and was wondering, is this a checkmate pattern with a name?
10
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1answer
8k views

How is this situation not a checkmate?

According to the chess app I am using, this is not a checkmate against black: [FEN "1rk4r/1p6/3p3q/Q1pPbRnP/p1P3B1/P6P/1P4R1/7K w - - 0 1"] 1. Rf7+ How is it not? I think the black king is ...
1
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2answers
314 views

Checkmate in 7 moves?

In the below chess position, the chess.com computer analysis says that there is a checkmate in 7 moves for Black, but I can't find the way. Can you help me find the solution? White's last move was ...
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3answers
195 views

How is the threat Qxh7 relevant here?

According to chess.com, "White threatens both Qxh7 and Qxf8 checkmate - Black cannot defend against both threats.". Would the threat the white Queen has towards h7 be enough to have a checkmate? How ...
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5answers
2k views

Is this position a forced win for Black after move 14?

In this Lichess game, [FEN ""] 1.c4 e5 2.e4 d6 3.Nc3 Be6 4.Nf3 Nc6 5. d4 exd4 6.Nxd4 Nxd4 7.Qxd4 c5 8.Qd3 g6 9. Be2 Bg7 10.O-O Nh6 11.Re1 Ng4 12.Bxg4 Bxg4 13.e5 Bxe5 14.Nd5 Qh4 15. Nc7+ Kd7 16. ...
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4answers
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How many different ways are there to checkmate in the early game?

We all know the shortest possible checkmate is 4 ply: f3 e5 g4 Qh5# This isn't the only possible move order. In fact, there are 8, depending on whether white moves the f or g pawn first, ...
3
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1answer
210 views

Is it still back-rank mate when there aren't friendly pieces blocking?

The definition of the back rank mate is: A Back-Rank Mate is a checkmate delivered by a rook or queen along the back rank in which the mated king is unable to move up the board because the ...
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3answers
749 views

Can it be useful for a player block with a hanging piece in a back rank mate situation?

Could the following situation possibly exist? It's White to play, and Black is about to get back rank mated. This is because the King's mobility is restricted to a single file. Then White gives a ...
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1answer
149 views

Is there a name attributed to this type of checkmate pattern?

I was going over an old Lichess game of mine, when I realized that I had played out the final mating position in a few other games before, as seen below. [FEN "5rk1/p4pp1/1p5p/2p4Q/2P3R1/P4q2/6RP/...
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1answer
598 views

What is a pure checkmate?

Recently I heard something about pure checkmate. This is a special kind of checkmate where each of the squares around the king has to be covered by just one single piece. One simple example of this ...
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1answer
121 views

Is black in check? [duplicate]

I know this sounds like a really basic question, but I couldn't find it anywhere on the site... On the following board, is the black king actually in check (assuming it's his move)? My thoughts are ...
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2answers
193 views

Does this knight and rook mating pattern have a name, or has it occurred before?

[fen "5k2/8/1R6/5r2/P7/1P4P1/6KP/5n2 b - - 0 40"] With black to move, remarkably it's mate in 2 (at first glance, it looks like black may struggle to even draw). It occurred in a recent LiChess game ...
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1answer
134 views

What is the total number of KNN vs K checkmate positions?

What is the total number of KNN vs. K checkmate positions? Assume that White is checkmating. Firstly the Black king must be mated on a corner. It is impossible to do it on the edge. The calculations ...
0
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1answer
112 views

Why do people make a huge pause before making even a simple checkmate? [closed]

Are they already so happy about the victory or is this behavior of the cheat program? I don’t believe in what they think over the simplest move.
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4answers
222 views

Can someone make a puzzle in which a KNN vs. K checkmate is forced in the end?

No, I am not asking if a KNN vs. K can be forced if those are all that's on the board. It is well known that this is impossible. (I wasn't quite sure om if I should have put this in here or in the ...
5
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3answers
529 views

A position in which checkmate is forced (obligatory)

I am looking for a position in which all possible moves are checkmate. This means, that if the player does not want to checkmate the opponent, because for example he feels sorry for him, even in that ...
6
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5answers
449 views

When exactly does a checkmate or stalemate take effect?

I'm not enthusiastic about chess in particular, so if I use terminology incorrectly please correct me. I use "phase 1 & phase 2" for each player's move, and "turn n" for each pair of phases. I'm ...
6
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1answer
258 views

Would certain checkmates be possible if the king could move into check?

Similar to a previous question of mine, let's suppose there's a piece that moves like the king, but isn't restricted from moving into check. While a normal king and two knights can't force checkmate, ...
1
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1answer
189 views

What are the fastest horizontal checkmate for both castlings?

Horizontal: wherein the rook attacks down a rank. I wish to know the fastest possible castling checkmates, for both queenside and kingside, that are a horizontal one See my question about vertical ...
2
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3answers
221 views

What are the fastest vertical checkmates for both castlings?

Vertical: wherein the rook attacks down a file. I wish to know the fastest possible castling checkmates, for both queenside and kingside, that are a vertical one. See my question about horizontal ...
4
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3answers
343 views

On the board: K vs. KRN. Could an Arabian mate be done without king’s help?

Can an Arabian mate be enforced without the king’s help in this position? [FEN "r6k/8/8/8/8/8/8/K6n w - - 0 1"]
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3answers
246 views

What are the quckest helpmates delivered by rook, knight, bishop, and pawn?

What are the quickest helpmates, which is where both sides help administer checkmate to one side, delivered by the rook, knight, bishop, and pawn? Said piece has to deliver the checkmate on the final ...
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1answer
165 views

App Mis-calculated Checkmate?

How is this checkmate? The King isn't even in check! Am I missing something, or did the chess app goof up?
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2answers
284 views

Black only has pawns: Mate in what?

In a standard opening position in chess, imagine that all black pieces are removed except for the king and pawns as follows: What is the shortest forced mate, assuming white starts? I don't know the ...
3
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2answers
183 views

Finding a mating net in a RRN vs RRN endgame

This question relates to a game I played on LiChess (link), from which we have the following position: [FEN "8/2rn4/2pN2k1/r1Pp2p1/p2P4/3KPP2/R7/7R w - - 4 42"] In this position with white to move, ...
5
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1answer
333 views

What is the longest professional chess game that ended in a checkmate?

Quite simply, what is the longest professional chess game that ended in a checkmate?
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2answers
207 views

How many possible two-move checkmates are there?

Yes, I am well aware that Fool's Mate exists. But how many other possible two move checkmates exist in chess?
0
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1answer
267 views

What is the fastest possible checkmate? [duplicate]

What is the fastest/shortest possible checkmate? What is the minimum amount of moves to checkmate a side?
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2answers
153 views

Why queen traps happen so frequently? [closed]

I am aware that in most chess games the king is the one to be checkmated. Yet when playing many online chess games I have found the queen is the the one being checkmated. Is this simply another ...
1
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2answers
377 views

Why isn't the objective of chess to capture the opponent's king? [duplicate]

The objective of chess is to put the opponent's king in a position where it cannot evade capture. Why not go all the way? Short of tremendous blunders of moving into check, chess would be completely ...
8
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6answers
766 views

At what playing strength level should one be able to mate with King Bishop and Knight vs King?

As in title above, at what playing strength level should one be able to mate with King, Bishop and Knight vs King without much effort (with reasonable time left for the game)?
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2answers
365 views

How is this not checkmate? I had loads of time to spare

See below my game last night, I am white and I got 3 queens. He only has the king left. We have loads of time left. It was a 30min game. As soon as I moved my original queen up one space and got him ...

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