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Questions tagged [checkmate]

Questions relating to checkmating.

5
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3answers
101 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
votes
1answer
113 views

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

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
vote
1answer
103 views

Is there a faster way to do horizontal castling checkmate?

See my former question about vertical castling here. Horizontal: wherein the rook attacks down a rank. I have composed horizontal castling checkmates for both the queenside and kingside (links below....
2
votes
3answers
98 views

What is the fastest vertical castling checkmate for both the kingside and the queenside?

Vertical: wherein the rook attacks down a file. Since I like to know fast ways to do theoretical objectives in chess, I wish to know the fastest possible castling checkmate, for both queenside and ...
4
votes
3answers
179 views

On the board: white king vs. black king with knight and rook. Could checkmate be done without the black king’s help?

Just something I randomly came up with. Sorry if it is a duplicate.
1
vote
1answer
120 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?
3
votes
2answers
240 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 ...
2
votes
2answers
162 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
votes
1answer
165 views

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

The question pretty much sums up what I want to know. There is nothing else to add here.
1
vote
2answers
94 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
votes
1answer
216 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?
1
vote
2answers
136 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
vote
2answers
152 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 ...
6
votes
5answers
338 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)?
0
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2answers
196 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 ...
0
votes
1answer
214 views

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

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 ...
-2
votes
1answer
101 views

How is a game of chess won?

My understanding is that there are basically two ways in which a game of chess is won. (1) One side gives (or forces) checkmate, regardless of material situation on the board. He may be in material ...
5
votes
3answers
358 views

Is this considered checkmate or not

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 so what is it called
-3
votes
4answers
124 views

If a king is in check can the opponents king take said king if it puts him in check? [duplicate]

Q a king is in check can the opponents king take said king if it puts him in check? Boyfriend is having none of and thinks he wins ... surely you can’t put yourself in check even if the opponents ...
-2
votes
2answers
252 views

Is it possible to give two more checks here?

If the knight moves then is it possible to give check mate? I have already given one check. I was playing a game of "3 check". How can I get two more checks? Is it not possible? 3 check is a mode in ...
1
vote
1answer
164 views

How to be more aware of smothered mate opportunities?

I've been playing Chesscademy's android app for a while when I'm bored: thought it could improve my chess to be solving their tactic challenges (not sure if it's working though..). One pattern I ...
6
votes
3answers
379 views

En Passant Check mate

I made a check with a pawn that was subject to an en passant movement. The check led to a check mate, but the rule at "chess.com" didn't count it as a check mate but let the opponent make his move. ...
9
votes
2answers
516 views

When checkmate is impossible in a position

Edit This question is not a duplicate, as mentioned in my comment. The linked supposedly-duplicate question addresses neither my below question #1, nor question #3, nor question #2 except tangentially ...
4
votes
1answer
165 views

How are chess engines able to rank a Mate in X above a Mate in X+Y?

According to an engine, a mate in X moves = +infinity, since it is a forced win for it. Also according to an engine, a mate in X+Y moves = +infinity, since it's a forced win (just more moves, but an ...
8
votes
1answer
1k 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....
-4
votes
2answers
81 views

Can I mate black in 4 moves in this game

Can I mate black in 4 moves in this game
1
vote
1answer
107 views

How to mate a king already in the corner with a knight and a bishop?

How can white mate black in 4 moves in this game. This might be easy but I am a beginner. 7k/7N/6K1/8/7p/7B/8/8 w - - 1 0
0
votes
1answer
57 views

How can white mate black in 4 moves in this particular game.

How can white mte black in 4 moves in this game. This might be easy but I am a beginner. (https://i.stack.imgur.com/r5n6R.png)
3
votes
1answer
77 views

How can white mate black in 4 moves in this game.

How can black mate in 4 moves. white king is on e3 and white rook is on g6. Black king is on h2 and blak pawn is on h3. I am being a beginner finding it difficult
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votes
1answer
133 views

How can black mate white in 4 moves in this game

How can black mate in 4 moves? [FEN "6k1/p5rp/3p1PR1/3Pp2Q/qBK1Pp2/5P2/2P5/r5R1 b - - 0 1"] [Event "Black to mate in 4 moves"]
6
votes
2answers
378 views

Checkmating the bare king with 3 knights – can the mate be forced on any edge square?

In the case where White has King and 3 Knights, and Black has just the bare King, it is known that White can force checkmate. But can White in fact pick any edge square in advance, and force the ...
13
votes
3answers
1k 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 cause a checkmate by En Passant of the same ...
1
vote
2answers
160 views

Why continue to increase search depth after mate is found?

Playing with test sets, several times I come across a behavior of the chess engines which I can't understand: Let's say I have the endgame [FEN "8/k7/3p4/p2P1p2/P2P1P2/8/8/K7 w - - 0 1"] which after ...
6
votes
3answers
323 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 ...
4
votes
1answer
91 views

What is the name of this mating pattern?

Recently I delivered the mate shown below. Does it have a name? [fen "1r5r/2p3pp/2R5/1pkPpp2/2b1P3/2K2P2/6PP/R7 w - - 0 1"]
8
votes
2answers
248 views

E.Umnov's chess problem, 1944. Checkmate in two moves

White to play and checkmate in two moves. [title "E.Umnov's chess problem, 1944"] [FEN "k7/5QK1/3n1pb1/1R1p1r2/5p2/8/1p6/4R3 w KQkq - 0 1"]
1
vote
1answer
105 views

Checkmate in two moves [duplicate]

White to play and checkmate in two moves. [fen "5Kbk/6pp/6P1/8/7R/8/8/8 w KQkq - 0 1"] Is it possible? If so, please write a solution.
8
votes
1answer
706 views

What is the order of actions in chess under FIDE rules?

Reading some recent posts about the 50 move rule made me realize that I've never seen an explicit order of actions for chess. By way of comparison, the order of actions in Monopoly is given here: (1) ...
2
votes
1answer
114 views

Claiming a 50-move draw with a mating move [duplicate]

Under FIDE law 9.3.1, a player to move may claim a 50-move draw by writing down the intended 50th move and making the claim. Supposing this claim is otherwise valid; if the move would checkmate then ...
15
votes
4answers
8k views

How is this checkmate?

So I'm somewhat of a new player to chess and I'm currently reading a chess book which is explaining all the different terms. In one instance it describes what stalemate is; "If your opponent has no ...
3
votes
1answer
118 views

Data set of board representations at checkmate?

I would like to do a simple project by looking at the pieces at play when checkmate occurs. I have been scouring the internet for a dataset of standard chess games from which I can retrieve the ...
-4
votes
1answer
1k views

If I have only a king left and two blocked pawns, how many moves does my opponent have to mate? [closed]

I have only king left with two pawns but they are blocked. By how many moves an opponent has to checkmate me?
1
vote
1answer
122 views

Could the black king move to C5?

Could the black king move to C5?
2
votes
4answers
412 views

Should one actively search for a checkmate ('hunt the King') in the middlegame? [closed]

My usual middlegame strategy is to gain an advantage, however small (say a pawn), and convert it to a win in the endgame. I position my pieces and plan attacks accordingly, so that I can grab the ...
1
vote
1answer
131 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. ...
3
votes
1answer
354 views

What is the longest forced mate optimally played in documented competition?

There are tons of questions about the longest forced mate on here and other chess forums. Usually the answers are the 2 Knights forced mate and another one that evidently takes 549 optimal moves. ...
2
votes
2answers
310 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 ...
0
votes
1answer
124 views

How to checkmate in an altered version of chess

If you know the name of the chess variant I'm trying to describe, please leave it in the comments. My friend and I have concieved an (most likely already thought up, nevertheless very fun) idea of ...
39
votes
3answers
12k 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 ...
9
votes
6answers
461 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 ...