# 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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### Helpmate part 2

This is the second part of Fastest way to helpmate You have been given the task to checkmate/helpmate black in fastest possible way in following ways: Pawn promoting to only queen Pawn promoting to ...
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### Fastest way to helpmate

What is the fastest way to checkmate/helpmate white(A helpmate is a type of chess problem in which both sides cooperate in order to achieve the goal of checkmating Black/White) in this given position? ...
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### Find the best plan for White

Here is a chess position to be solved. It is technically illegal, but for the sake of the puzzle, we'll ignore that. Find the plan for White that wins the game, with proper reasoning. FEN: 1rkr1b1b/...
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### Reverse Puzzling 8 - Another Chess One with an Allumwandlung

[Continued thematically from here] George grinned at the sight of the chess board. "What have we here?" "This was the first two-mover to show Allumwandlung using only this many pieces,&...
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### cypher puzzle with chess board

I found this puzzle here on reddit's cipher community The answer could be a word or sentence. I thought ABCDE meant the order 12345 and each square could be a letter.
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### An overconfident grandmaster

Suppose you are playing a grandmaster with the White pieces and you are on the verge of losing the game. The overconfident grandmaster offers you a bet: You will make two consecutive moves with White ...
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### Escape the labyrinth

Devise a concrete winning plan for White. The title will help. En passant is not possible. FEN: 7k/8/6p1/3p1pPp/p1pPp1p1/PpPpPpPp/1P1B1P1B/3NRKQN w - - 0 1 This problem is based on a similar concept ...
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### Move and Remove

From the initial position Black makes a regular move to an unoccupied square, and removes any piece from the board. Then repeats, alternately making a move and a removal. The objective is for Black to ...
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### Merging knights and blocking rooks

A chess grid is filled with knights and rooks as shown in the following diagram. Each turn you can issue a move in one of 8 directions available to a chess knight. This will move all the knights in ...
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### Jumping knights on a 5x5 grid

Two players (black and white) alternate in making moves. Each turn a player must use one of his knights to capture an opponent's knight. Knights use standard chess moves. It is black's turn in the ...
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### Jumping knights on a 4x4 grid

Two players (black and white) alternate in making moves. Each turn a player must use one of his knights to capture an opponent's knight. Knights use standard chess moves. It is black's turn in the ...
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### Merging knights

A standard 8x8 chess grid is filled with knights. Each turn you can issue a move in one of 8 directions available to a chess knight. This will move all the knights in that direction. If a knight would ...
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### A Complicated Exercise In Addition

Another day, another walk down to the cafe. I was waiting in line for my coffee, wondering what the barista could do this time to make my name look whack. But as I waddled in line, a curious site ...
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### A Knight's Tour

A lonely chess knight stands on a cell somewhere in the first row of a 3x13 board, and elsewhere there is a castle. The knight takes a tour of all the remaining 37 cells of the board, missing just the ...
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### Wordle Pictionary!

Inspired by the new game of Wordle, I have created a new type of puzzle combining Wordle and Pictionary. The left image represents a phrase of six five-letter words. Normal Wordle rules apply: Green ...
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### Quickest chess stalemate with Queens exchange

Continuing my previous puzzle. If both players cooperate, what is the quickest stalemate in chess that includes a Queens exchange, in a legal game?
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### Quickest mate with Queens exchange

If both players cooperate, what is the quickest mate in chess that includes a Queens exchange, in a legal game?
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### Smallest number of moves to reach a "reverse checkers" position

A "reverse checkers" position is a position where every piece for one player is on one colour and every piece for the other player is on the other colour. Consider this position, for example:...
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### Fairy Impostors

Fairy Chess is a genre of chess composition where the rules of normal chess are altered. This is typically done by adding new pieces (e.g. borrowing the cannon from Xiangqi) or changing the way ...
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### A Complex Dash To Stalemate

For today's contribution to PSE, I present a sliding block puzzle! I have a series-helpstalemate in 26 for you all with a relevant question attached. The illegal position is intentional. Objective #1: ...
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### Camel-eon 8x8 tour

This question is inspired by the Chameleon 8x8 tour puzzle. A knight is a chess piece that moves by jumping to a square $\sqrt 5$ units from its location. (The more conventional way to put it is that ...
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### Chameleon 8x8 Tour

It is known that a knight can visit every cell of a 8x8 chess board exactly once. Here we consider the same task for a chameleon chess piece. This piece begins as a knight, then it transforms into a ...
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### What pieces does White need to beat Black's veto?

Consider the following chess variant: before each of White's moves, Black chooses one move which White is not allowed to make. (The rules for which positions constitute checkmate are unchanged - Black ...
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### The Novice Chess Team that Won Every Match of the Season

Devious High School had a newly formed chess team that played against all the other high schools in the area this year. These matches are played with a 5-player team who, at a match, sit next to each ...
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### How old is Grandfather?

This position has been used in hundreds of chess problems for various reasons by a plethora of problemists over many, many decades. It is known as "Vielväterstellung" in German, or "The ...
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### One-sided chess: Self stalemate revisted

An old self-stalemate puzzle has been popping up in my feed lately. I was unable to do better than the existing answers, so I created a different puzzle from it. For reference: One-sided chess: Can ...
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### Puzzle storm to infinity

I have been playing Puzzle Storm on Lichess lately. Essentially it involves solving chess puzzles within a given time limit. Additionally, the player gets a time bonus for a certain number of moves. ...
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### Chess Construction Challenge #9: Two Eggs & A Flood

I have an odd idea for this challenge. It involves a very specific proof game construction. So pay attention! Given that: White and Black cannot move more than one pawn each throughout the entire ...
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### Chess Construction Challenge #D: 8 moves

Since I "burnt" the complete question elsewhere, let's start with "D" (I counted up in hex) and 8 moves. The position in the answer there can be improved by far! OK, to ...
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### Chess Construction Challenge #8: Three Times The Charm

On a chessboard, a piece has a set number of legal moves. It can range from 0 to 27. However, this amount can also restricted. My previous questions have covered n=1 and n=2, it is time for n=3! Given ...
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### Flat share share

This is a sequel to Gentrification in Chessshire. Due to the febrile state of the Chesster housing market you and your flat mates are forced to rent out half your place to another group of sharers. ...
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### Chess Construction Challenge #7: Double The Fun

Many thanks goes to @Retudin in a comment on my last question for this idea. In a chess position, pieces can be restricted as to how many moves they can legally make in theory. Since my previous ...
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### Chess Construction Challenge #6: The One Move Royale

In chess, it is possible for a piece to have only one legal move. For example, in this position, the Black king can move only to h2. Given that: All 32 pieces are available for use. Construct: A ...
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### Room Puzzle, containing chess and ciphers. Can someone help? [duplicate]

I Have to force checkmate black king in two moves only its white turn. And the keypad Someone also asked this question here like a month ago, but the answer was wrong i tried alot of things but ...
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### Gentrification in Chessshire

You can skip the back story and directly jump to the question. Capitalism has arrived in suburban Chesster the community most famed for The Game, and with a vengeance. Rents have trebled in less than ...
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### Chess A Knight's Journey

You'll need to know about: A game that has existed for over 1500 years A game that doesn't exist ♞ → I → II → III → ... Answer = Xxxxxxxxx
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### Checkmate Puzzle [closed]

I had a chess position today, in which my last position had 5 possible moves to checkmate. This seemed like a lot to me, and I immediately thought of the puzzle: Which position would yield the maximum ...
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