Questions tagged [checkmate]

Questions relating to checkmating.

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20
votes
1answer
12k views

Why is it illegal to move into check?

In chess, it is against the rules to move into check, or to not move out of check. But why? Obviously, if you went against this rule, you'd immediately lose. But it seems strange to make it illegal to ...
26
votes
7answers
9k views

What is sufficient mating material?

The FIDE chess rules describe that "The game is draw when a position is reached from which a checkmate cannot occur by any possible series of legal moves" (FIDE rule 9.6). This rules is sometimes ...
29
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9answers
4k views

Is it possible to force checkmate with King, Knight, and Bishop vs. King?

If a King, Knight, and Bishop are pitted against the opposing King, is it possible to force checkmate? I find it very hard to do, enough so that I'm not sure whether there's a clean method.
7
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3answers
846 views

Does checkmate over ride 50 move violation?

If a move creates the 50 move violation and at the same time creates checkmate, does the checkmate take priority over the draw ?
16
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5answers
31k views

How do you checkmate with a rook?

How do you checkmate with a Rook and King versus King? Is there a good and fast method? Can you explain it in a good way? Thanks!
14
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3answers
242k views

With only a king left, how many moves remaining until a draw?

I am a beginner in chess. If I have only a king left, how many moves does my opponent have to mate me?
17
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4answers
2k views

Fastest possible checkmate by en passant

En passant is somewhat of a rare move in chess. Checkmating by en passant, however, is an even rarer occurrence. But suppose both sides had the same goal to help cause a checkmate to their opponent ...
13
votes
3answers
10k views

Checkmate with two knights?

Is it really possible to checkmate with two knights and king against a king? There is a mating position with this but no extra tempo to do it in real game. What are the explanations, why knights ...
10
votes
1answer
2k views

What longest number of moves for a forced mate position (including draw rules)?

What is the longest (currently discovered) number of moves for a forced mate position where players will use both the 50-move draw rule and the 3-fold repetition rule if it will help them avoid losing?...
23
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5answers
4k views

Is it a draw by insufficient material if the board is K vs K, N & N?

It isn't possible to force checkmate with King vs. King, Knight & Knight. A checkmate position, however, is still possible to achieve, so does that mean the 50 move rule applies, or does ...
20
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5answers
58k views

When you check someone, do you have to say “check”?

Yesterday I was playing with a friend, I was almost out of time, he checked me, didn't say anything, I didn't see the check as i was in a hurry to make my move. And I was mated. Computers don't let ...
22
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4answers
110k views

Is it possible to checkmate with knight and king against king?

I would like to clarify two things: Is it possible to checkmate with only a knight and a king against a lone king? What will happen when one side has a king and knight and the other has just a king, ...
14
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4answers
994 views

Is it possible for a white piece to deliver check to the black king, but for black's counter move to result in white getting checkmated?

Is it possible for a white piece to deliver check to the black king, but for black's counter move to result in white getting checkmated? Has this happened in games between top players?
4
votes
7answers
2k views

Is it true that at any time only one piece can put king in check?

I am writing a simple chess game in which I have to determine the end game conditions. My algorithm requires the piece that is putting the opponent king in check, and checks the following: King ...
3
votes
2answers
548 views

What is the most number of pieces from one side that can be involved in a checkmate?

What is the most number of pieces from one side that can be involved in a checkmate if we define 'involved in a checkmate' as follows? A non-king piece is involved in a checkmate 'if removing it ...
1
vote
2answers
506 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? (...
11
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3answers
4k views

Checkmate with King and Knight vs King and Knight

I just have a quick question. I was playing on chess.com and got into the following position: [FEN "8/4n/6k1/8/K2/3N1/8/8 b - - 0 1"] Now, I assumed that once we traded off the last pawns, the game ...
8
votes
1answer
5k views

Minimum moves to checkmate?

What is the minimum number of moves, counting both sides, in which a checkmate can be made?
6
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4answers
8k views

What endgame, with 3 to 6 pieces, has the longest known forced checkmate?

I am wondering, what endgame, with 3 to 6 pieces, has the longest checkmate with optimal play? Right now, the longest I'm aware of is the two knights versus one pawn endgame, which in certain ...
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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3answers
3k views

It's not check but the next move is checkmate [duplicate]

I have 5 pieces left and my opponent only has his king. It is my opponent's turn and his king is not in check but everywhere his king moves is checkmate. Who wins?
30
votes
9answers
30k views

What are some of the checkmates with very few moves?

I would like to learn about a few checkmates using very few moves. I know a one where you develop the knight and march it directly towards the King. Does anyone know the name of this mate and suggest ...
42
votes
4answers
14k views

Win the game by just moving king?

How short can a game be in which (after the first move) one player moves only his King, and yet checkmates their opponent? (Assume that the players co-operate: i.e. this is a kind of "helpmate". This ...
7
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2answers
2k views

Mate With 3 Knights

How do I checkmate with 3 knights? I know 2 is a draw, but with 3 is not.
8
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1answer
2k views

Why does the game end at checkmate and not upon taking the king? [duplicate]

Ever since I was a kid this has felt kind of odd to me. Victory in chess is achieved by "cornering" the king, and not by taking him outright, like what you do to all the other pieces. I always ...
21
votes
2answers
27k views

How do you checkmate with the pair of bishops?

How do you checkmate with the pair of Bishops and King versus King? Are there any stalemates to look out for? What are the key ideas / positions / tricks to make it work? Thanks!
18
votes
1answer
2k views

How many such positions are there? (chess/math checkmate puzzle)

I'm interested in this kind of position: There are only 4 pieces on the board. If Whites goes first, they can checkmate in one move. If Blacks goes first, they can checkmate in one move. For example: ...
9
votes
2answers
259 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 ...
6
votes
3answers
2k views

Could two kings force checkmate against a lone king?

I was looking at minimal combinations of material needed to force checkmate (K+R, Q+B, R+N+N, etc). You end up with a sort of threshold of how much material is needed, and that sort of assigns a ...
6
votes
2answers
847 views

KNN-K Chess Endgame

[FEN "8/8/8/4N3/4N3/4K3/8/4k3 - - - 0 0 "] I have this chess problem that I have played with. Logically, there are positions that have the Black King in checkmate. But untill now, I haven’t been able ...
5
votes
3answers
677 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 ...
19
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4answers
5k views

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, ...
7
votes
4answers
643 views

Is this considered checkmate if I touch a piece which can't make a legal move?

What if there's a touch move rule, and my knight or bishop is blocking my king, and I touch it. Is that a checkmate? If not, what is it called?
4
votes
1answer
206 views

The Art of the Checkmate, Quiz 24: Is there a win?

This is quiz 24 from The Art of the Checkmate by Renaud & Kahn. Black to play and win rn3rk1/pp3ppp/3b1n2/2pPq3/2B1P3/1NN2bP1/PPPQ1P1P/R1B2RK1 b - - 0 1 The authors give this as the winning ...
3
votes
1answer
168 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. ...
3
votes
4answers
1k views

Is there a checkmate in the next move?

My friend claims that there is a mate in the next move. White to move and checkmate. I am aware of 3 mates in 2 variations: 1. Qd1 Kd3 2.Rxd5# 1. Qd1 Kc5 2.Qg1# 1. Qd1 Kxe5 2.d4# But I cannot seem ...
2
votes
1answer
62 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?
2
votes
2answers
992 views

Instead of giving checkmate, I gave stalemate. Why?

I am a beginner, and I have just discovered this annoying stalemate. I got the definition but while playing, I ended up with a stalemate and I don't know why, could you help me and explain it to me? ...
2
votes
3answers
271 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 ...
1
vote
2answers
259 views

What are the fastest horizontal checkmates 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 ...