June 11, 2010
We present today a classic exercise that has been on my to-do list since the start of Programming Praxis.
The n-queens problem is to find all possible ways to place n queens on an n × n chess board in such a way that no two queens share a row, column, or diagonal. The diagram at right shows one way that can be done on a standard 8 × 8 chess board.
Your task is to write a program to find all such placements. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.
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