Best Placement
Pentominoes are the 12 distinct shapes that can be formed by joining five equal squares edge-to-edge. First systematically studied by mathematician Solomon W. Golomb in 1953, pentomino puzzles challenge players to tile these shapes into rectangles or other specific configurations without overlaps. P...
The N-Queens Problem is a classic combinatorial puzzle first published by chess composer Max Bezzel in 1848. The challenge requires placing N queens on an N×N chessboard so that no two queens threaten each other, meaning no two queens share the same row, column, or diagonal. Beyond its recreational...
Battleships Puzzle is a solitaire deduction puzzle derived from the Battleship board game, in which the solver locates a fleet of ships within a grid using only row and column ship-segment totals and occasional revealed cells.
The Tents Puzzle, also known as 'Tents and Trees,' is a binary-placement logic puzzle played on a rectangular grid. The solver is given a set of trees occupying certain cells and must place exactly one tent orthogonally adjacent to each tree. Numbers alongside rows and columns specify how many tents...
SmartGames Walls and Warriors is a single-player logic puzzle by Belgian publisher SmartGames, notable for 80 challenges about placing walls and warriors.
SmartGames Cats and Boxes is a compact single-player logic puzzle from Belgian publisher SmartGames, notable for 60 challenges about fitting cats into boxes.
Sittuyin is the traditional chess game of Myanmar and belongs to the family of games derived from the ancient Indian game chaturanga. Pawns begin in fixed positions, while the other pieces are placed by the players during an opening deployment phase on their own side of the board. Its pieces and pro...
Pre-Chess is a variant that randomizes starting positions by allowing players to take turns placing their back-rank pieces on the board before standard movement and play commences.
