N Queens: Puzzle Game

Place N queens on a NxN chessboard safe from each other.
Place N queens on a NxN chess board so that each of them is safe from others.
This is a generalised form of the 8 queens problem of placing 8 queens on a chess board. It has different levels. Try to complete each level in minimum time and be on the top of the leaderboard.

Download N Queens: Puzzle Game 2.3:

Current Version: 2.3
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Package name: com.supergeek.junejaspc.nqueens