Questions tagged [checkmate]

Questions relating to checkmating.

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2
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1answer
32 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?
5
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1answer
121 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 ...
1
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1answer
138 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 ...
4
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2answers
71 views

Knight and King Vs Queen and King

Can the Knight and King in anyway mate the King and Queen? The player with the King and Queen is playing sub-optimal. I was recently playing a game which I lost. In the last move I captured a pawn ...
7
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2answers
973 views

Most pieces involved in checkmate in actual game?

I recall seeing a number of chess games where a lot of pieces are involved in the final checkmate, and was curious to know what is the maximum number of pieces of one player A that have been involved ...
1
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2answers
126 views

Checkmate possibility for Black

In this lichess game, in the given analysis line for move 32, is it possible for Black to win in two moves after 35... Kc7? [FEN "8/R4k2/2p3p1/2N4p/3n4/3P1pPb/PP3P1P/6K1 b - - 0 1"] 1... Ke8 2. Ra8+ ...
15
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2answers
3k views

What moves solve this mate in 2?

It’s White to move and mate in 2 moves. [FEN "7r/1p3Q1p/2q5/3bk3/1Q2p3/2P5/r2P2PP/2KR4 w - - 0 1"]
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2answers
64 views

Stalemate v/s Checkmate

I am unable to understand why Photo 1 a stalemate and Photo 2 a checkmate. PHOTO 1 PHOTO 2
26
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4answers
4k views

How can I prevent checkmate in this position?

It is White's turn to move. How can White avoid a checkmate? [FEN "8/1kpP2q1/1p2P1p1/1P3pP1/5p1K/5P2/6P1/R7 w - - 0 1"]
8
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2answers
268 views

Outside-the-box mate-in-one challenge

I've received an (I would say impossible) mate-in-one challenge and I have already checked all movements, but couldn't solve it yet. It came from a trustable source and they say you need to think ...
4
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1answer
410 views

Problem with a shorter solution

I'm looking at this problem. [Title "White to move. Mate in three"] [StartFlipped "0"] [fen "5rb1/1p1P1pbr/1p5p/5N/PP2k/1Np3QB/6K/8 b - - 0 1"] It requires white to mate in three. The accepted ...
0
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3answers
147 views

Chess Problem: White to play and mate in two

White's turn, checkmate in two moves How does white deliver checkmate in 2 moves?
6
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1answer
172 views

Looking for an opening that had been wrongly evaluated for years

I'm looking for an opening I saw in a book (not a chess book). The opening was about 10 moves long, and the author stated that the evaluation after the last move shown had been considered for many ...
11
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2answers
4k views

Games where a pawn checkmates the king

Could you please refer some examples of game where, on the last move, a pawn checkmates the king (preferably from grandmaster's games)?
1
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1answer
76 views

Checkmate via en passant capture [duplicate]

I tried to get the smallest sequence of moves that would result in a checkmate*( or rather Helpmate)* with the last move being a en passant . This is the shortest I could get : [Title "Shortest En ...
4
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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
159 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 ...
1
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2answers
136 views

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

I have been working on a checkmate-in-3 problem 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 ...
2
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1answer
188 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
29 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 ...
7
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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 (...
3
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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
981 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?
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2answers
212 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 ...
17
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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? ...
2
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2answers
188 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"]
3
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2answers
1k views

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 ...
2
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1answer
130 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
320 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
63 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 ...
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3answers
615 views

How is this checkmate? I’m new to chess

I’m new to chess. How is this checkmate? [FEN ""] [Date "Dec 31 2019"] [White "User 21050 (Lvl 3 500pts)"] [Black "Computer (Level 20 3000+pts)"] 1.Nf3 a5 2.Ng5 h5 3.Nxf7 g6 4.Nxh8 g5 5.Ng6 Ra6 6....
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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
415 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? (...
1
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1answer
135 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 ...
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2answers
349 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 ...
-2
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3answers
209 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 ...
6
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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. ...
15
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4answers
3k views

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
219 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 ...
7
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3answers
756 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 ...
1
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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/...
5
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1answer
719 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 ...
1
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1answer
122 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 ...
4
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2answers
199 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 ...
-4
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1answer
141 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
115 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.
5
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3answers
592 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
476 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 ...

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