A problem in which a tactical or positional solution is required

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4
votes
1answer
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 ...
17
votes
2answers
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 ...
13
votes
2answers
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 ...
3
votes
2answers
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 ...
1
vote
5answers
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 ...
3
votes
3answers
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 ...
9
votes
1answer
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 ...
11
votes
3answers
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 ...
11
votes
2answers
1k views
7
votes
4answers
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-...
0
votes
3answers
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 ...
3
votes
2answers
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 ...
1
vote
1answer
74 views

Any ideas for this interesting puzzle?

Any ideas for this interesting puzzle?
15
votes
1answer
1k views

What is the solution to this mate in 2 puzzle?

What could be the answer to it?
3
votes
1answer
122 views

Why shouldn't the black king move to h7?

If white plays ne6+, why shouldn't black play kh7?
4
votes
1answer
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?
3
votes
3answers
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 ...
2
votes
1answer
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?
5
votes
2answers
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 ...
6
votes
2answers
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 ...
2
votes
1answer
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 ...
3
votes
1answer
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 ...
9
votes
2answers
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 ...
1
vote
1answer
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 ...
4
votes
4answers
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?
2
votes
1answer
117 views

About forcing a checkmate

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 ...
4
votes
3answers
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 ...
1
vote
1answer
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 ...
2
votes
3answers
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 ...
1
vote
2answers
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 "...
3
votes
1answer
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 ...
6
votes
2answers
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, ...
3
votes
2answers
316 views

About retrograde analysis

Raymond Smullyan wrote some great books with Retrograde Analysis chess puzzles. I know of two, are there others?
5
votes
0answers
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 ...
6
votes
1answer
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. ...
1
vote
1answer
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 ...
3
votes
1answer
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.
5
votes
2answers
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 ...
5
votes
5answers
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 ...
3
votes
1answer
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 ...
2
votes
1answer
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 ...
5
votes
1answer
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 ...
5
votes
1answer
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.
7
votes
2answers
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 ...
14
votes
3answers
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 ...
4
votes
4answers
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 ...
2
votes
1answer
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/...
0
votes
1answer
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 ...
1
vote
1answer
259 views

What is happening in this puzzle?

I recently solved a puzzle at chess.com and it is below (I played white). What I don't understand is that why black moved its rook to h8 (1...Rh8). I think that black's position would have been better ...
4
votes
3answers
936 views

Shortest possible game with 18 queens?

The selected answer to this question shows a game in which all 16 pawns promote to queens so that there is a total of 18 queens on the board. It takes 80 moves... What is the shortest sequence of ...