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Questions tagged [checkerboard]

A puzzle involving checkerboards: grids of squares alternating black and white in color, most commonly an 8x8 board.

6 votes
1 answer
856 views

2 bishops versus a lone king

There are 4 pieces on the board, the white and black kings, as well as 2 white bishops (on differently colored squares). The only way a stalemate occurs is if the black king is not in check, but ...
28 votes
4 answers
2k views

Arrows on a Chessboard

I've taken an $n$ by $n$ chessboard and drawn an arrow on each square, pointing in one of the eight compass directions. I've done this in such a way that arrows in (orthogonally) adjacent squares ...
-1 votes
1 answer
612 views

Partitioning a chessboard

You should see a standard chessboard - it is printed on paper. How many ways can you cut it up (around the squares) such that each piece has twice as many squares of one colour than of the other ...
6 votes
2 answers
711 views

Pedro's pawn game

Yesterday, my good friend Pedro told me about Pedro's pawn game which is played with $7$ white and $7$ black pawns on a $7\times7$ checkerboard. In the starting situation, there is a white pawn on ...
8 votes
2 answers
750 views

Dominoes on a chessboard

Mary has a box with special $2\times1$ dominoes. Each dominoe has two red corners and two blue corners, and these dominoes come in two different types: The first type has the lower left and the upper ...
7 votes
2 answers
599 views

Placing dominoes on a 3x100 checkerboard

Alice and Bob play a game by alternately placing dominoes on a $3\times100$ checkerboard (3 rows, 100 columns). Alice has the first move. A move of Alice consists in placing a $1\times2$ (horizontal) ...
17 votes
2 answers
2k views

The Erasmus rook tour

Professor Erasmus has found a special way of moving a rook across a standard $8\times8$ chessboard that he modestly calls the "Professor-Erasmus-rook-tour". The professor claims that in this tour, ...
-1 votes
3 answers
229 views

8 queens equivalent on checkers [closed]

I'm a computer programmer trainer and sometimes I do some puzzle exercises with my students. Right now we did a checkers game and I would like to make them program to solve something with their ...
2 votes
1 answer
320 views

How many Kings can you Achieve?

In a standard American game of checkers what's the maximum amount of kings a player can get, and what is the move sequence? Keeping in mind the force capture rule
2 votes
1 answer
846 views

How do I count Hamiltonian paths of grid?

Let's say there is a 5x5 grid with a starting position in the upper left corner, and an ending position is lower left corner. How do I count how many Hamiltonian paths there are through the grid? I ...
9 votes
1 answer
626 views

Moving a pawn around on a chessboard

Suppose you have a checkerboard with two opposite corner squares removed, like this: Can you move a pawn on the board only horizontally and vertically, one square at a time, and have it touch every ...

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