8 queens puzzle - définition. Qu'est-ce que 8 queens puzzle
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Qu'est-ce (qui) est 8 queens puzzle - définition

MATHEMATICAL CHESS PROBLEM OF PLACING EIGHT CHESS QUEENS ON AN 8×8 CHESSBOARD SO THAT NO TWO QUEENS THREATEN EACH OTHER
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  • min-conflicts]] solution to 8 queens

8 queens puzzle         
Eight queens puzzle         
The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other; thus, a solution requires that no two queens share the same row, column, or diagonal. There are 92 solutions.
eight queens problem         

Wikipédia

Eight queens puzzle

The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other; thus, a solution requires that no two queens share the same row, column, or diagonal. There are 92 solutions. The problem was first posed in the mid-19th century. In the modern era, it is often used as an example problem for various computer programming techniques.

The eight queens puzzle is a special case of the more general n queens problem of placing n non-attacking queens on an n×n chessboard. Solutions exist for all natural numbers n with the exception of n = 2 and n = 3. Although the exact number of solutions is only known for n ≤ 27, the asymptotic growth rate of the number of solutions is approximately (0.143 n)n.