Questions tagged [chess]

A puzzle related to chess, a two-player board game with white and black pieces of varying ranks.

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2
votes
1answer
126 views

Footmen And Friends #2: Leapfrog

Seeing as the pilot episode was a major success, with an outstanding and correct response from one of our viewers, it’s time for Episode 2. Remember, we show puzzles with kings and pawns only! Those ...
5
votes
1answer
176 views

Footmen And Friends #1: A Long Ways Away

Tonight premiers the first show of Footmen And Friends, a show dedicated exclusively to kings and pawns. Let's give these soul-men of chess a chance to shine instead of their big sisters and brothers! ...
7
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4answers
376 views

Chess pieces attacking exactly N chess pieces

In the spirit of completion and the style of: Discrete Peaceful Encampments: 9 queens on a chessboard Queens attacking exactly one queen Queens attacking exactly four queens Knights attacking exactly ...
16
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5answers
3k views

Knights attacking exactly three knights

Can you place 14 black and 14 white knights on a standard 8x8 chess board, such that each knight attacks exactly 3 opponent knights? Bonus question: can you do it with 15 black and 15 white knights? ...
12
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3answers
1k views

How many chess pieces do we have to put at least?

In a $8\times8$ chessboard, a cell is qualified if an adjacent cell (a cell which is on top, left, below, or right of the cell) excluding itself has a chess piece on it. How many chess pieces do we ...
9
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2answers
951 views

Queens attacking exactly four queens

Can you place 14 black and 14 white queens on a standard 8x8 chess board, such that each queen attacks exactly 4 opponent queens? Good luck! Here is a related question: Queens attacking exactly one ...
9
votes
3answers
338 views

Where art thou, oh native rooks?

Here’s a tough puzzle for you all today! Given that both White and Black conspired to reach this position as briskly as possible, where standth White’s native rooks (the one from the starting ...
13
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5answers
2k views

Chess pieces attacking exactly once

Inspired by this question. Actually the same but in a more generic manner. What is the maximum number of chess pieces of the same type (e.g. kings, bishops, rooks, knights) which can be placed on a ...
21
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8answers
6k views

Queens attacking exactly one queen

What is the most number of black and white queens that you can place on a standard 8x8 chess board, such that each queen attacks exactly one opponent queen?
7
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2answers
379 views

A Simple Question

May White mate in two? Good luck! Thomas Rayner Dawson, Tidskrift för Schack, 1923
4
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2answers
191 views

Chess Construction Challenge #4-Excelsior!

It’s been awhile since the last one, so cheers for round four! Given that: It’s White to selfmate themselves in exactly 5 moves, i.e. after White’s fifth move, Black’s only legal move(s) will ...
16
votes
3answers
1k views

A King's Hamiltonian Tours

a) Place the numbers 1 to 25 in the cells of a 5 x 5 board in such a way that consecutive numbers occur in adjacent cells either vertically, horizontally, or diagonally, and so do cells with numbers 1 ...
8
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2answers
343 views

The peasant atop the world

Mate in four, White is in glee But all is not as you see For it takes a certain trick A broken rule to break you must pick Tell me the one rule and the grand solution And points you shall earn ...
7
votes
1answer
239 views

Catching up to my foe

I had once made a piece of wonderful art Until then it had been a century's vain of work Spent inside those Russian winter days At last made in the early eighties But a friend of mine had recently ...
8
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1answer
642 views

One piece of a destroyed chess board

Once I met a friend and he told me the following story: I recently cut my wooden 8x8 chess board into different rectangular pieces along the edges. Each square of the chess board has a length of one ...
2
votes
1answer
232 views

A challenge-find the shortest solution!

I come here with the challenge today-find the shortest solution! Recently, I set out to created the longest helpmate possible, not caring for legality or duals I have created this monster as a result....
16
votes
1answer
591 views

White to mate in 2

This is a cryptic crossword puzzle. Clues are normal, however some entries clash with one another. Each such clash is resolved by adding the clashing letters using the standard A1-Z26 numerology, ...
15
votes
3answers
2k views

Only one square for the white king

Consider this position. It is white's turn to move. Your job is to place the white king so that white have an overwhelming (winning) advantage. Where is it? Please note that: While Queen usually ...
6
votes
1answer
886 views

And another one bites the dust

I recently found an extraordinary moremover online today. Have fun finding the solution! It’s White to move and mate in 19 moves! Bonus: Explain the title in relation to the solution! Jozef Lozek, ...
17
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2answers
283 views

Queens of the Square Sudoku Table

. 6 . | 8 . 3 | . 7 . . . 1 | . . . | . 6 9 7 . . | . . . | . . 5 ---------+---------+-------- . . . | 9 . . | . 1 . . . . | . . . | . . 4 . . 5 | . 1 . | . ...
7
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3answers
1k views

A Plethora of Puzzled Pawns

Inspired by this question According to FIDE rules, the pawn may move to a square occupied by an opponent’s piece diagonally in front of it on an adjacent file, capturing that piece. So, what's in ...
7
votes
1answer
299 views

The Newest Cycle

A wonderful new chess problem has appeared lately that is most wonderful. I am here to share it with the world today. But you must solve it in order know about it’s glory! It’s White to move and ...
3
votes
1answer
178 views

Peaceable Bishops on a 10x10 grid version 2

Can you place 42 bishops with 6 bishops for each of the 7 colors on a 10x10 grid, such that no two bishops of different colors attack each other? Here are some similar questions: Peaceable Bishops ...
9
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2answers
2k views

Peaceable Bishops on an 10x10 grid

Can you place 22 red, 22 white and 22 black bishops on a 10x10 grid, such that no two bishops of different colours attack each other? Here is a similar question for 8x8 grid: Peaceable Bishops on an ...
7
votes
2answers
695 views

Peaceable Bishops on an 8x8 grid

Place an equal number of red, white and black bishops on a 8x8 chess grid, such that no two bishops of different colours attack each other. What is the largest number of bishops you can place? Bonus ...
4
votes
3answers
320 views

Judge this position

An odd chess crime has occurred. The below position, a criminal one, was on the board when it was intercepted. Is it a legal or illegal chess position? Give reasonable proof as to why. You are to ...
4
votes
1answer
112 views

You Tell Me What To Choose

I found this nice problem in A.C. White’s 1912 book “The Theory Of Pawn Promotion” the other day. Enjoy! It’s White to move and checkmate Black in 5 moves, Don’t forget to explain the title! ...
8
votes
3answers
744 views

Fewest Chess Pieces

What is the least amount of chess pieces you can use to cover the board with their possible moves and what is their placement? You can only use the pieces that are found on the chessboard (from the ...
11
votes
2answers
565 views

Checkmate with two knights, but with a twist

It is well known that two knights and a king alone cannot force a checkmate. But that it on a 64-sqaure board. According to Edward Winter’s C.N. 5449, William Shinkman found a way to give mate in a ...
2
votes
1answer
166 views

With The Last Man

Here’s a nifty little problem. It’s White to move and mate in 12! Don’t forget to explain the title! Johann Christoffel Van Gool, Le Journal de Genève 1979
3
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4answers
172 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 ...
7
votes
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
2answers
871 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
votes
1answer
344 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. Gijs van Breukelen, Schakend Nederland, 1981, Special Honoring ...
2
votes
1answer
123 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 ...
4
votes
1answer
147 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
5
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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 ...
7
votes
7answers
298 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
1answer
304 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
2answers
192 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. David Gurgenidze & ...
9
votes
3answers
378 views

The Marching Tune

And a one, and a two, and a three four five six! Or a one, and a two, and a three four five! From my home right here, To the end way down there! And then I have a choice Of a one, a two, or a ...
4
votes
1answer
176 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
175 views

Attacking queens

Can you place 3 queens on a 6x6 chess board such that they can attack every square? Good luck!
11
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3answers
632 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 ...
14
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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 ...
0
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2answers
239 views

Something Simple

A simple task: It’s White to move selfmate themselves in three moves. White pawns are moving up.
5
votes
1answer
223 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 ...
7
votes
0answers
213 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
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3answers
883 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 ...

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