Questions tagged [chess]
A puzzle related to chess. Questions about chess which aren't puzzles are off-topic and should be asked on Chess Stack Exchange.
399
questions
1
vote
1answer
52 views
k-threats Chinese Cannons Chess: Part 2
Inspired from the N-Queens problem, I here propose you a puzzle from Xiangqi wich is Chinese Chess equivalent, mostly played in Asia.
The most different piece from Xiangqi is the cannon. You can ...
4
votes
1answer
58 views
k-threats Chinese Cannons Chess: Part 1
Inspired from the N-Queens problem, I here propose you a puzzle from Xiangqi wich is Chinese Chess equivalent, mostly played in Asia.
The most different piece from Xiangqi is the cannon. You can ...
4
votes
3answers
180 views
4-coloured queens attacking every opponent queen once
Can you place 6 queens from four different colours (24 in total), such that each queen attacks exactly one queen of each colour? They may attack as many queens of their own colour as these are ignored....
6
votes
1answer
86 views
Freedom of many choices
There are 40 possible move options for both White and Black players in the starting position. The 4 knights and 16 pawns all have 2 options.
If all the pieces are still on the chessboard, how would ...
7
votes
4answers
307 views
3 Colors of Chess Pieces Attacking Each Other Once Each
Yes, it's another "Chess Pieces Attacking Each Other" puzzle. This time we have 3 colors. Your goal is to place as many of the same type of chess piece (excluding pawns since you can't define the "...
6
votes
1answer
121 views
Most moves by Most number of Pieces
Using one color, White or Black, place as many chess pieces (kings, queens, bishops, knights, rooks, and pawns, or combinations thereof) as you can on a checkerboard so that when the number of pieces ...
2
votes
1answer
85 views
Footmen And Friends #3: Eviction
Welcome to Episode 3, where we have a strange puzzle for today. Pawns aren't legally allowed on the first and eighth ranks, but today we make an exception for the sake of creating another long but fun ...
13
votes
1answer
794 views
The Single Digit - a chess riddle
In front of you lies a safe. Within the safe, you are aware, lie the AI-discovered secrets to solving the game of chess - indeed, every one of its complexities, all of its unknowns, implausibly ...
2
votes
1answer
89 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 ...
4
votes
1answer
158 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
votes
4answers
340 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
votes
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?
...
11
votes
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
votes
2answers
926 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 ...
7
votes
2answers
247 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
votes
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
votes
8answers
5k 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
votes
2answers
352 views
A Simple Question
May White mate in two? Good luck!
Thomas Rayner Dawson, Tidskrift för Schack, 1923
4
votes
2answers
140 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 ...
14
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
votes
2answers
322 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 ...
6
votes
0answers
184 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
votes
1answer
614 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
209 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....
15
votes
1answer
531 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, ...
14
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
879 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
votes
2answers
252 views
Queens of the Square Sudoku Table
. 6 . | 8 . 3 | . 7 .
. . 1 | . . . | . 6 9
7 . . | . . . | . . 5
---------+---------+--------
. . . | 9 . . | . 1 .
. . . | . . . | . . 4
. . 5 | . 1 . | . ...
7
votes
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 ...
8
votes
1answer
269 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
170 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
votes
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
675 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 ...
3
votes
2answers
229 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
104 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
708 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
411 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
160 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
votes
4answers
165 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
votes
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: ...
5
votes
2answers
634 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!
6
votes
0answers
221 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
118 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
135 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
votes
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 ...
6
votes
5answers
220 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
258 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
183 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 & ...
8
votes
2answers
320 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 ...
