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Questions tagged [chess]

A puzzle related to the game of chess. Questions about chess which aren't puzzles are off-topic but can be asked on Chess Stack Exchange.

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3
votes
4answers
126 views

Hilfe White Rochade!

It’s Black to move. What must Black do in order to help White castle queenside in just 11 moves?
15
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5answers
4k views

Princesses covering an 8x8 chess board

What is the minimum number of princesses you need to place on an 8x8 chessboard so that every empty square is attacked by at least one princess? A princess is a piece from fairy chess that can move ...
10
votes
2answers
848 views

How many bishops to walk across the board

N bishops are placed on a standard 8x8 chess board. Each bishop can move normally but after touching or moving over an square, that square is considered marked. A bishop cannot pass over or land on ...
5
votes
2answers
556 views

Knights covering a 10x10 chess board

What is the minimum number of knights you need to place on a 10x10 chess board, such that every empty cell is attacked by at least one knight? Good luck!
7
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2answers
2k views

Knights covering a 9x9 chess board

What is the minimum number of knights you need to place on a 9x9 chess board, such that every empty cell is attacked by at least one knight? Here is a similar question for a 10x10 chess board: ...
6
votes
5answers
191 views

Chess Construction Challenge #3-The Inverse Babson

Another day, another task! Today's challenge is to construct four positions, with White to move and win, such that: In each position, White's move is to promote to a particular piece, for a position ...
7
votes
4answers
262 views

Discrete Peaceful Encampments: Player 3 has entered the game!

Here's a variation of Discrete Peaceful Encampments: 9 queens on a chessboard (which itself is a variation of Peaceful Encampments). You have 4 white queens, 4 black queens, and 4 red queens. Place ...
4
votes
0answers
134 views

The Rambling Monster

The Rambling Rook is back, but this time, they are a true monster! It’s White to move and reach a winning position in 101 moves. Source: Gijs van Breukelen, Schakend Nederland, 1981, Special ...
2
votes
1answer
104 views

In and out, and back in again

With White to move, how long will it take for both sides to cooperate, i.e. this is a helpmate, and checkmate Black? This is based on a problem made made by Otto Blathy. And yes, I know that the ...
3
votes
3answers
215 views

A Hearty Warm-up

Sliding-block chess puzzles have gone a little cold, so here be a hearty warm-up! ;D In the below position that I created, it Black to move, but there is a twist: the stipulation is that it is a ...
11
votes
3answers
414 views

What’s the most possible checkmates in one, but with no promoted pieces, in a position?

What is the most possible checkmates in one without promoted units in a position? It must all be legal, of course. Consider this a part two of this question: How many total checkmates can you ...
15
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3answers
804 views

Highest number of mates

In chess, what position has the highest number of checkmates in 1 move for a given side? You can have as many of each piece as you want, except for the king (you get exactly one). Bishops can be same ...
4
votes
1answer
116 views

“Short” And Sweet Math

In the following chess diagram, how many possible chess postions exist? No looking at the solution! Source: P1359129 & Andrew Jonathan Mestel, Retros mailing list, 2/1/2019
6
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3answers
1k views

A delve into extraordinary chess problems: Selfmate 2

(Continuing the series from here) Here is a second selfmate puzzle (also relatively easy, but beware the traps!). It is by C. R. Flood from 1967, and is puzzle 81 in The Book of Extraordinary Chess ...
8
votes
1answer
229 views

A delve into extraordinary chess problems: Selfmate 1

[This series continues from a harder puzzle here and continues in this puzzle] Here we have an easier but still interesting selfmate in 5. This is a puzzle by A. Rubin found in The Book of ...
3
votes
3answers
255 views

Chess Golf: Peaceful Double Mate

Given the board below, create a checkmate for both sides, ensuring that no pieces are capable of capturing any other piece excluding captures targeted at the kings. Blue moves south and pink moves ...
12
votes
3answers
527 views

A delve into extraordinary chess problems: Self-Stalemate 2

Following on from a slightly easier puzzle here (this series continues here). This is a puzzle by W. A. Shinkman in 1924: White to play and force Black to stalemate him in nine moves. As a ...
7
votes
2answers
524 views

Don't bully your little sister at chess

This puzzle was inspired by @RewanDemontay's puzzle De-zephyr The Solution!. Rewan kindly granted me permission for making this puzzle and citing his as my source of inspiration. I thought of naming ...
3
votes
2answers
155 views

Back in time, in my time, all the time

I present to you all a highly interesting problem that I came across awhile ago on Tim Krabbe’s site. It’s White move and win, i.e. reach a winning positon, in 21 moves. Source: David Gurgenidze &...
11
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2answers
2k views

The economy of trapping

A queen on the center of the board has 27 possible moves. Sometimes a queen can be trapped, like in the position below. Note: This is just an example of a what a trap should be like-every possible ...
14
votes
1answer
1k views

A delve into extraordinary chess problems: Self-Stalemate 1

(This puzzle series is continued here) I found a book that must have been given to me thirty years ago called The Book of Extraordinary Chess Problems: 120 Unusual Puzzles by Stephen Addison. It's ...
4
votes
1answer
152 views

Attacking queens revisited

Can you place 5 queens on a 11x11 chess board such that they can attack every empty square? It turns out this problem was answered here: http://golovolomka.hobby.ru/books/gik/04.shtml Can you find ...
6
votes
1answer
125 views

Attacking queens

Can you place 3 queens on a 6x6 chess board such that they can attack every square? Good luck!
0
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2answers
187 views

Something Simple

A simple task: It’s White to move selfmate themselves in three moves. White pawns are moving up.
8
votes
1answer
192 views

Reconstructing A Chess Game #4

My five years old pupil Magnus is really on fire ! After three wins in the first, second and third games, he is playing White today in round 4 against one of the tournament's favorites (a child who ...
2
votes
0answers
150 views

Around The World

It's White to move and checkmate Black in 36 moves. I have slightly changed the original stipulation. Feel free to explain the title if you want to! Source(Couldn't copy and paste!): (Oleg Pervakov ...
4
votes
1answer
151 views

A Remote Location

Here be a simple problem For the keen directmate eye White to move and win In seven moves, Black shall die However, I remember now a relative Long ago did he begin to live About a two decades or ...
8
votes
0answers
138 views

Forbidden Love: A tale of two kingdoms

Once upon a time there were two kingdoms (bluex and pinksus) separated by a wall of eternal war. The kings of these two kingdoms each had one son and one daughter. Their children sought to end the war ...
5
votes
3answers
445 views

What is my lover's name?

I have a lover, I love her so She has a special name as we all do But I wish, from me to you, not to tell A secret kept is a secret kept well But if you truly want to know I shall soon reveal her ...
8
votes
2answers
312 views

Three-player chess on a 7x7 board

This is chess between three players. Short rules: Black moves first, then blue, then red. The move order is the same regardless of whether any of the players are in check. Normal chess rules ...
7
votes
3answers
139 views

Playing Chess Game of Chance

I still enjoy playing chess at the age of ninety four.Those contemporary opponents I used to play with have all passed away without me even getting even scores with any of them. On my spare time I ...
31
votes
2answers
3k views

How many queens can be on a chessboard without attacking each other?

What is the maximum number of queens that can be placed on a standard 8x8 chessboard such that no one of them is capable of attacking any of the others in a single move?
8
votes
3answers
385 views

So, what's to do?

It's White to move and draw the game. What must White do? You must provide proof for your claim of what's to be done by any reasonable means. This puzzle was created by Nikita M. Plaksin, and ...
4
votes
2answers
192 views

The Dropper, But With A Twist

Here's a piece-drop puzzle of my own. In the below position, a White piece is to be dropped onto the board. This means that, before White can move, they must legally put a single piece on them board. ...
46
votes
2answers
3k views

Can you stop the rambling rook?

This is a chess puzzle someone showed me a long time ago. If you already know this puzzle please give the others a chance to solve it first. This puzzle was originally created by Otto Gallischek and ...
2
votes
1answer
151 views

That Ain't Right… #4

Here's a small head-scratcher for you all today. In the above position, it is White to play and mate Black in four moves, assuming that Black plays their best moves. However, there is a catch—there ...
8
votes
4answers
450 views

Deliver a checkmate on a cylindrical chessboard with the least cumulative piece value

Suppose that the chess board is not a 2D square, but a cylinder, as shown below: In that case, both players still can make queens, but one king and one queen is not enough to checkmate the opponent, ...
5
votes
2answers
243 views

Tempoverlustspiel

Tempoverlustspiel-A German word that roughly translates to "loss of tempo game." An interesting chess term that I leaned a while ago With White to move in the below position, how many moves will it ...
3
votes
1answer
103 views

A Breeze Through

Here's a small problem for you all to breeze through tonight! It's White to move and selfmate themselves in 7 turns. Can you tell me what the special concept is that arises from this problem? As ...
7
votes
4answers
657 views

Tricky Tricky!-Can you find the secret?

Here's a selfmate problem that just might be baffle you! Thus, I name it "Tricky Tricky!" It's White to move and selfmate themselves in 8 moves. Can you find the secret? As always, no computers ...
2
votes
1answer
179 views

The Sea Snake's Slithering Problem

Here's a really long chess puzzle, not made by me, that has the "sea snake" theme, which just basically means that it's super long. It's White to move and checkmate Black in 122 moves. Please do not ...
25
votes
3answers
5k views

A Checkmate of Dubious Legality

Full-size image Black has just delivered checkmate in the above position - but is the position legal? If no, explain why. If yes, give Black's mating move. FEN: 3r4/2r4b/8/8/8/3Kp3/5k2/8 w - - 0 1 ...
6
votes
1answer
175 views

De-zephyr The Solution!

Here's another original chess problem of mine for you all to solve today! In the following position, White wants to stalemate Black even though they can win, for unknown, unclear, unexplained, and ...
3
votes
1answer
179 views

All The King's Men-Selfmate In 14 Moves?

I call this "All The King's Men" because lots of White's pieces are needed in this selfmate. It was somewhat of an accident actually, but it is still a pretty position in my opinion. It's whiteto ...
5
votes
2answers
93 views

Piece-drop Mate #4

Piece-Drop Mate Piece-drop Mate #2 Piece-drop Mate #3 Here's another installation of the Piece-drop Mate series! I'll try to be more explicit about the rules of the puzzle, as recommended by @...
6
votes
2answers
111 views

Piece-drop Mate #3

Piece-Drop Mate Piece-drop Mate #2 Here's a third one and an interesting one at that: Your task is to place a piece on the board as White and checkmate Black. The correct answer is the one which ...
4
votes
3answers
118 views

Piece-drop Mate #2

Piece-Drop Mate #1 Here's a second piece-drop mate, but with a twist. Just like last time, you may only place the maximum number of pieces allowed on the board in a regular game of chess. You're ...
5
votes
1answer
200 views

Piece-Drop Mate

Find a way to checkmate Black by placing pieces! You must use as little material as you can(in points). You cannot place more pieces than allowed in a regular game of chess! The Position Good luck! ...
4
votes
2answers
196 views

Chess Construction Challenge #1-Read First Please!

I'm starting a new series in which I set a very specific goal with a unique (to be more specifically defined here in a bit) answer in which the solver must construct a chess position, sometimes a game,...
1
vote
3answers
136 views

Don't Checkmate White!

Quite simply, find the one move by Black that doesn't checkmate White! It's really not that hard! Good luck solving! UPDATE: There's no need to solve this, but I finally dug up my original diagram , ...