# Tagged Questions

A problem in which a tactical or positional solution is required

104 views

### Simple mate in 2?

I used to be a problem composer and the thing I loved about creating and solving chess problems is that you can't just rely on simple patterns. You need to think outside the box. This is one of my ...
2k views

### What is the highest number of different mates in 1 you can have in one (legal) position?

A friend and I yesterday asked ourselves what the highest number of possible mates in a (legal) position is. We were able to come up with the following position which has a total of 76 unique mates in ...
2k views

### Prove that white is not allowed to castle here

A friend recently gave me the following weird chess problem to solve, and I'm afraid I'm struggling to see the key ideas, that would ultimately count as proof. From the position, intuitively speaking ...
194 views

### Help me with this puzzle

Look at this puzzle: [FEN "r3q3/1pb1rbk1/2pn1p1p/p1Qp1Bp1/3P4/4P1NP/PP3PPB/3RR1K1 b - - 0 1"] The aim of the puzzle is: Black to play and attain a good position. But I can't find a good position ...
165 views

### Chess Opening Puzzle App

I like chess puzzle apps. But they all focus on the end or middle game. The reason is clear: In the opening there is no single truth. But there is some common sense what's good and what's not. Is ...
224 views

### Creative chess puzzles!

What are some of the creative chess problems that can never be solved by computers? Question changed to Creative chess puzzles! What are some of the creative chess problems that computers can never ...
1k views

### White to force the end of the game in two moves

I found this hilarious problem and hope people will have fun solving it: Niels Hoeg, Skakbladet 1907 [FEN "8/8/6p1/5pP1/5P1K/5PpP/4p2p/2Q2Bkr w - - 0 1"] White to end the game in two moves. In ...
2k views

### Is there any position where not promoting(illegally) would be the best move?

Is there any position, where moving a pawn to last rank but not promoting it to any piece would be the best move? By the way, I know this is an illegal move. Assume it is legal. Edit: Now we have a ...
1k views

### What is the shortest number of moves from the starting position required for Black to mate White with a pawn?

Interesting puzzle that is quite hard to stop.
935 views

### How much time you spend on one puzzle?

I know solving tactics puzzles is one of the recommended ways to improve in chess. I spend around 30 min solving puzzles. How much time I should spend on one puzzle? During games we don't think 15-...
431 views

### Is Behting Study Still Beating Computers? [closed]

This is the famous Behting study, first published in the magazine Bohemia in 1906, which is often used as a demonstration that computers can’t solve all positions. White to move and draw with a very ...
99 views

### Thinking to solve the puzzle

I came across a puzzle on lichess.org, (Black to move) , I was unable to solve it. But I know the solution now, I don't wasn't the solution or analysis. I just want to know how should one think ...
74 views

### Any ideas for this interesting puzzle?

Any ideas for this interesting puzzle?
1k views

### What is the solution to this mate in 2 puzzle?

What could be the answer to it?
122 views

### Why shouldn't the black king move to h7?

If white plays ne6+, why shouldn't black play kh7?
169 views

### Why is Nb5 a strong move here? Why is there a guaranteed material gain?

Taken from: Chess Academy: A subtle blunder You can do Nc7 afterwards but wouldn't the Black do Rf8 beforehand?
313 views

### Von Popiel - Marco, Monte Carlo 1902, how to win as black?

In the game: Von Popiel - Marco, Monte Carlo 1902: why would Black win with Bg1? Ultimate Blunder Puzzle The white player is about to lose the Queen. Does that alone immediately constitute as a ...
120 views

### Concerning a chess-problem generating program

Are there any programs that can generate a huge amount of different interesting chess puzzles? Are there any programs that can make a lot of retrograde analysis problems?
1k views

### Stale-mating the opponent in order to not lose

There are some defensive ideas to get one's own king stalemated in order to not lose the game (mostly in the endgame, but sometimes also in the middle game). Have (master) games been played where ...
345 views

### Can someone describe a good/easy mental procedure to choose the best move here?

This is kind of like magic to me. Once they show you it becomes obvious :) :( Can someone point out a good/easy strategy that a player can mentally train/use to decide what is the best move here for ...
188 views

### Chess puzzle that is hard to understand

Today I was solving a chess problem as following picture : [fen "r1bqr1k1/1p3nbp/2pp2p1/2n2P2/p1PN1P2/2N1B1PP/PPQ3B1/R3R1K1 b - - 0 1"] The solution given was 1...Rxe3, but I did not get the ...
241 views

### Question about knight vs. 3 pawns endgame

In the following puzzle, 5. Kb6 is considered better than 5. Kc7. Doesn't Kc7 force Black to sacrifice his knight (sooner)? [FEN "8/3n4/8/1P3k2/1P6/4K2P/8/8 b - - 0 1"] 1... Nb6 2. Kd4 Ke6 3. Kc5 ...
818 views

### Effectiveness of a Space Repetition System in memorizing tactical patterns for long term skill gain?

After reading this article by Micheal de Maza: 400 Points in 400 Days As well as this paper by Gobet and Jansen: Training in Chess: A Scientific Approach I have come to the conclusion that effective ...
639 views

### How to check mate in 5 moves. First move is e4 and knight takes a rook before mate

The problem is to find an example of a chess game, which begins with 1.e4 and ends in the fifth move with knight takes rook mate (determining which side gives mate is part of the problem). This is a ...
415 views

### What is the most complex chess problem?

There are many chess problems and studies that are very nuanced and can take ages to properly figure out. What is the chess puzzle/problem with the longest (proven) solution?
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Could a player sacrifice 3 of his pieces , the opponent's King being forced to take each piece in a sequence of moves where the opponent's King lands on a space where it is promptly checkmated? A kind ...
171 views

### Resource with chess problems in electronic format with solutions

I am looking for a database of chess problems in electronic format with solutions. Ideal variant will be a database with something like: FEN starting position * description (Mate in 3 moves, Win ...
302 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 ...
164 views

### Why did black choose 1… Kxg7 instead of 1… Rfe8 in this puzzle?

I have a doubt with a puzzle that I solved recently. The proposed solution for that puzzle is as below. [FEN "r4rk1/pp4np/2n1bppB/qNQ1p3/8/6P1/PP2PPBP/R4RK1 w - - 0 1"] 1.Bxg7 Kxg7 2.Bxc6 bxc6 3.Nd4 ...
153 views

### How to repair black's position in this Game?

In this game black made some mistakes which leads to final position. While analyse this game engine not willing to capture bishop . [Event ""] [Site ""] [Date "2014.07.05"] [Round "-"] [White "...
562 views

### Fastest way to beat Gnu-Chess Easy as black?

This is more of a puzzle. As far as I can ascertain, Gnu-Chess Easy always plays the same, and so the question is, is what are the least amount of moves required to beat Gnu Chess on easy. Just to ...
283 views

### Puzzle rebus. Reproduce the game

There is a chess "rebus" puzzle: In this position white circles correspond to white chess pieces, black - to black. Each letter corresponds to exactly one piece type (king, queen, rook, knight, ...
316 views

Raymond Smullyan wrote some great books with Retrograde Analysis chess puzzles. I know of two, are there others?
330 views

### Trying to locate an old puzzle

A friend of mine showed me a great white-to-mate-in-three puzzle back in the late '50s or early '60s. Unfortunately he doesn't recall it. I can remember a few things: It was composed by someone from ...
327 views

### Puzzle. Find color of the pieces

Please help me to find solution of the next puzzle: Colours of the pieces on the diagram is unknown. The diagram can be obtained in a game. One needs to find colour of each piece: Black or White. ...
119 views

### Is there retrograde analysis puzzle like “Point on the incorrectly drawn chess piece”?

Does anybody know a nice chess puzzle, where question states: "Exactly one piece is drawn incorrectly on this diagram, another piece must be drawn on it's position. Find incorrectly drawn piece."? One ...
566 views

### Longest forced sequence that ends with checkmate and every move is a check

What is the longest move sequence that ends with checkmate and every move is a check? Disclaimer - every move by both players is a check.
317 views

### Puzzle: Find White's second-to-last move

For the following position to occur in legal play, with Black on move, what would White's second-to-last move need to have been? Note that Black is checked by two pieces on the h1-h8 file and two ...
3k views

### Brainteaser: What is the one thing a queen cannot do that all other pieces can do?

A simple brainteaser - A queen cannot do something all other pieces can do. What is that? April 18 2014 9:15 PM GMT. EDIT: In this context, by "doing" I mean making a move that leads to the desired ...
575 views

### Godfrey heathcote's chess puzzle

I didn't get a thought of a better title :) I am trying to solve a puzzle which is white to move and mate in 2 moves. To be frank, I am not asking all puzzles here. On my own I solved more than 50 ...
481 views

### Another chess puzzle

The below puzzle White to mate in two moves. I tried all combinations. I can't figure it out how to solve this? I am starting to think this as a bug in my mobile application which is showing wrong ...
660 views

### Need help to solve a puzzle

I don't know whether this is the right place to ask to help to solve a chess puzzle. I am trying to solve the below chess puzzle for more than 2 days. Can someone help me to solve it? (White to play ...
285 views

### What is the longest non-cyclic forced sequence of moves?

I am looking for positions from where every move is forced up to a certain depth. If the original position (or one in between) occurs again, the sequence is finished there.
2k views

### Sherlock Holmes vs Professor James Moriarty. A Game of Shadows. Chess Game Position Reconstruction

The chess scene between Sherlock Holmes and Professor James Moriarty in the movie Sherlock Holmes: A Game of Shadows is one of my favorite movie scenes of all time. What intrigued me even more was ...
944 views

### Longest sequence of mutually forced moves

In this position, the black move 1. ... Qc3 results in two consecutive forced moves, Kxc3 and Ke7: 2rkr3/2p5/2q5/8/8/8/3KP3/3R4 b - - 0 1 1... Qc3 2. Kxc3 Ke7 What is the longest sequence of ...
552 views

### Is it possible to have a double self-smothered stalemate?

I came up with this rather amusing and bizarre stalemate where Black stalemates itself by self-smothering. [FEN "8/8/8/8/8/3p4/pp6/krb1K3 b - - 0 1"] 1...d2+?? 2. Kd1 The peculiar feature of ...
148 views

### Need help with chess dilemma

I have white rooks on c7 and c5, white bishop on b6, white knight on d4, white king on b3, black king on d6 and black pawn on d2. white moves first. How can I get checkmate in three moves? [FEN "8/...
345 views

### Chess puzzle question; why is this the solution?

[fen "5B2/3p1n2/R2p4/1P1NRBQ1/1KPkrb2/1p6/2Pp1Pn1/4r3 w - - 0 1"] 1.Nc7 Rxe5 (1...Nxg5) (1...d1=Q) 2.c3# What would make you play Nc7? This results in checkmate in 2 if, as the computer does, Rxe5 ...