Starting the Game: The app presents an empty 8x8 chessboard where players can attempt to solve the Eight Queens puzzle.

Placing Queens: Tap on a tile to place a queen. The game will immediately indicate whether the placement is valid.

Valid Placement: A placement is considered valid if no two queens threaten each other. This means no queens can be on the same row, column, or diagonal.

Invalid Placement: If a placement is invalid, the game will show a visual or textual indication explaining why the placement cannot be made.

Adjusting Queens: Users can change the position of any queen on the board to explore different configurations.

Solving the Puzzle: When all eight queens are correctly placed on the board without threatening each other, the game notifies the player that the puzzle is solved.