MathDB

5

Part of 2003 Costa Rica - Final Round

Problems(1)

Colorings of an 8x8 board

Source: Central American Olympiad 2003, Problem 5

6/1/2007
Each of the squares of an 8×88 \times 8 board can be colored white or black. Find the number of colorings of the board such that every 2×22 \times 2 square contains exactly 2 black squares and 2 white squares.
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