Eight Queens - Millennium Prize Problem play online

The eight queens puzzle requires a player to place eight chess queens on an 8x8 chessboard so that no two queens are threatening each other.

The solution requires that no two queens share the same row, column, or diagonal.

The researchers are thrilled to find solution for this puzzle. However, they want the algorithm to work on a bigger square chess board.

Features:
Play mode (4x4, 5x5, 6x6, 7x7, 8x8)
Solution mode - for analyze all solutions

All solutions were contributed by my algorithm.