Battleship quest is an implementation of the logic game "The battleship puzzle". The program offers you unlimited number of Easy difficulty puzzles and 20 (twenty) of Medium and Hard difficulty puzzles for dimensions from 6x6 to 12x12.
Domino Solitaire, DomiSol is a puzzle where 28 dominoes are placed to form a rectangle but you do not see the bounds. Your goal is to find the bounds by grouping the domino halves into a correct domino set. A logic challenge. Free, no installation.