MathDB
kings tour and dominoes

Source: RS2004

March 20, 2005
combinatorics proposedcombinatorics

Problem Statement

An 8×88\times8 chessboard is completely tiled by 2×12\times1 dominoes. Prove that there exist a king's tour of that chessboard such that every cell of the board is visited exactly once and such that king goes domino by domino, i.e. if king moves to the first cell of a domino, it must move to another cell in the next move. (King doesn't have to come back to the initial cell. King is an usual chess piece.)