Queens Game

The Queens Game is the problem of placing N chess queens on an N×N chessboard so that no two queens attack each other.

In this application there are two N Queens game, one is Four(4) Queens Game and another is Eight(8) Queens Game.

The four queens puzzle or Game is the problem of placing four chess queens on an 4×4 chessboard so that no two queens threaten each other; thus, a solution requires that no two queens share the same row, column, or diagonal.

The four queens puzzle has 2 distinct solutions. If solutions that differ only by the symmetry operations of rotation and reflection of the board are counted as one, the puzzle has 1 solution.
The eight queens puzzle or Game 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. The eight queens puzzle is an example of the more general n queens problem of placing n non-attacking queens on an n×n chessboard, for which solutions exist for all natural numbers n with the exception of n = 2 and n = 3.

The eight queens puzzle has 92 distinct solutions. If solutions that differ only by the symmetry operations of rotation and reflection of the board are counted as one, the puzzle has 12 solutions.