Questions tagged [checkmate]

Questions relating to checkmating.

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0answers
40 views

How often do GM-level classical games end in checkmate?

I understand that top-level games mostly end in draws or resignation, and presumably occasionally running out of time. What proportion of top level tournament games (in classical time controls) ...
7
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1answer
2k views

Why can white not mate in this position?

[Event ""] [Site "https://www.apronus.com/chess/wbeditor.php"] [SetUp "1"] [FEN "6rk/p5p1/1q2Q3/3p4/6P1/8/2b2PK1/4R3 w - - 0 1"] I'm fairly new to anything ...
3
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4answers
959 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? (...
3
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2answers
739 views

Longest *shortest available* fixed sequence of moves leading to checkmate?

What is the longest fixed sequence of consecutive moves you can find in any legal position that guarantees checkmating the opponent regardless of their responses (whether by forcing particular ...
5
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1answer
145 views

Is KQB vs KP generally sufficient to force a selfmate?

User Hauke Reddmann noted in a previous answer that there should be a straightforward way to secure selfmate against a substantially weaker opponent (i.e., force them to checkmate you): win all the ...
3
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0answers
130 views

Moving absolutely pinned piece to give checkmate: has this ever occured in a master game?

We know that a (absolutely) pinned piece can move and give a check, and the check can even be a mate. The following is an example for such a checkmate. [FEN "8/8/2k5/8/4p2b/r7/3RKPBr/q7 w - - 0 1&...
10
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1answer
2k views

Term for checkmate where every participating piece attacks exactly one square around king

I am looking for the term for a checkmate position which is an aesthetic feature for a chess composition. It is closely related to pure mate. I shall say that a piece (incl. pawn) participates in the ...
3
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2answers
440 views

Longest forced win with just a Knight or Bishop

A single knight or bishop usually isn't enough to force checkmate. However, I know there are certain positions where the defending side has his king in front of a rook pawn where a win can be forced. ...
11
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7answers
1k views

Helpmate of arbitrary length

One of the FIDE rules states that if someone's flag falls, and there exists a legal sequence of moves such that the other player mates the first player, then the position is a win for the second ...
8
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3answers
2k views

Could you show me some very easy mate in 20?

I am looking for some puzzles where there is a forced mate in as many moves as possible (ideally 20 or more). Yet the puzzles need to be as easy as possible! You will probably need to find some ...
4
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2answers
250 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 ...
3
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2answers
663 views

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

What is the highest number of pieces from one side that can be involved in a checkmate? "Involved in a checkmate" is defined below. A non-king piece is involved in a checkmate 'if removing ...
9
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1answer
1k 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 ...
10
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4answers
874 views

Can you mate with each of your 16 pieces on its original square?

An opinion poll conducted by problem composer Roberto Osorio over 10 master-level chess players in the Argentine Chess Club produced 100% wrong answers! :-) When the right answer is posted here, I ...
8
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3answers
507 views

Problems: record for most mates-in-2

Does anyone know what the record for most mates-in-2 is for a composed problem? Example: this one has 58 different moves that mate in 2. [FEN "6R1/8/8/8/3Q3B/5K2/7k/1R6 w - - 0 1"]
46
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4answers
15k views

How fast can checkmate occur by just moving the king?

How short can a game be in which (after the first move) one player moves only their king, and yet checkmates their opponent? This is assuming that the players cooperate, i.e. this is a kind of "...
8
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2answers
3k views

Mate With 3 Knights

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

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

I was going over an old lichess.com game when I realized that the checkmating pattern seemed familiar. [FEN "5rk1/p4pp1/1p5p/2p4Q/2P3R1/P4q2/6RP/4r2K w - - 0 1"] Here it is boiled down, ...
4
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1answer
1k views

Fool's Mate - As White?

Fools Mate is simple as black, white opens right up, 2 moves, done. But if you attempt to do this as white, once you move, black moves, you move, it's only check, there is no checkmate. Is it ...
14
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2answers
1k views

What are the shogi equivalents of Fool's and Scholar's mate?

In western chess, the Fool's mate and Scholar's Mate are two well-known mates that take very few moves from the starting position. What would be the shogi equivalents to these, or, more generally, ...
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2answers
262 views

How many two move checkmates exist?

I am well aware that Fool's Mate exists. But how many two move checkmates exist in total?
4
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2answers
364 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. [FEN "4k3/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1"] What is the ...
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3answers
357 views

What are the quckest helpmates delivered by the 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? The said piece has to deliver the checkmate on the ...
4
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2answers
197 views

The quickest mate in n

Obviously inspired by the analogous selfmate question. (Helpmate would also be possible in principle, but looks a bit silly.) Thus, 1.f3 e5 2.g4 allows Black a #1, and 1.f3 e5 2.h3 a #2. 1.f4 e5 2....
5
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4answers
434 views

Theoretically, is the analysis of the moves more complex if the objective is to be the first to be checkmated?

I have seen variations of other board games or strategy games where the aim is to actually 'lose' the game by forcing your opponents to make moves. Applying this concept to the rules of chess, would ...
19
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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 ...
27
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16answers
8k views

Is it ethical to tell your opponent how you are going to checkmate them?

I play online chess at 3 days per move. I like to tell my opponents how I'm going to checkmate them if they will never win. That way, that I won't waste time continuing the game. I also like to be ...
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1answer
167 views

How did I get a checkmate in this game?

This is a position from an endgame I played that I do not understand. How did I get a checkmate in this game? Is this a glitch? I ask this because I am pretty sure that Black's queen could take my ...
2
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2answers
317 views

In chess.com analysis, why is a rook promotion better than a queen promotion?

I was analyzing a game on chess.com and it showed me that, in the below scenario, it is better to promote to a rook instead of promoting to a queen. It also shows that it has a mate in 6 with the ...
8
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2answers
1k views

Which of the pawns in front of the king should be moved in order to prevent a back-rank mate?

Assuming we're playing white and a bank rank mate is being threatened. Which one of the pawns (f, g, or h), in most cases, should be moved? Is there a general rule for this?
2
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1answer
262 views

What does an engine do if it has found the shortest mate?

For example, take this famous position from Kramnik vs. Deep Fritz, 2005: [FEN "5N1k/6p1/7p/4P3/pp2Q3/4q3/1P4PP/2b4K w - - 0 1"] Obviously White wins with Qh7#, and equally obviously, there ...
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1answer
147 views

Number of distinct checkmate positions

What is the number of distinct checkmate positions in each of the following categories given the following conditions? We are not interested in whether the position can be forced or not or even what ...
1
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2answers
197 views

Checkmate with only relevant pieces

What is the maximum number of black and white pieces which are relevant in a checkmate position (by White)? That is if any piece (black or white) was removed from the board, the checkmate would not be ...
7
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1answer
626 views

How many steps to mate the only king with all pieces?

Suppose Black has only one king in its initial place and White has all 16 pieces in their initial places. How many steps does it take to ensure a checkmate? And what are all solutions? Now that White ...
2
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1answer
646 views

How is this checkmate … or does chess.com have a bug?

Playing as black against the chess.com computer, the following position was reached and chess.com declared checkmate in its favor. However, I don't see that the black king is in check. So is this a ...
0
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1answer
439 views

White gives checkmate in two moves

[FEN "5rk1/2Q2ppp/p7/2P5/1p6/1B5P/Pq2nPP1/3R1K2 w - - 0 1"] White, to move, gives checkmate in two moves. Can anyone find the solution?
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3answers
6k views

Why is this position checkmate?

Why is this position checkmate? [FEN "2kr1bnr/1pQ5/p3pp2/2Pp2pp/3P4/3qPN1P/PP1N1PPB/5RK1 w - - 0 19"]
2
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3answers
2k 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 explain it to me? [FEN "8/...
3
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1answer
270 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 ...
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4answers
2k views

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?
31
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12answers
31k 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 ...
2
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1answer
128 views

What is the B+N 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, the White king should cut the black king off the center first, by controlling the center itself. ...
1
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1answer
82 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 ...
1
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2answers
126 views

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?
15
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2answers
4k views

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 ...
5
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3answers
978 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 ...
17
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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. ...
27
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6answers
12k views

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 ...
4
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3answers
1k views

Four way chess -checkmate

My friends and I have been playing knightmare chess in a four player variant. We were playing with the stipulation that when a player is checkmated, after his turn he removes his king from the board ...
2
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0answers
54 views

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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