FDZ Games
Minesweeper
The classic logic puzzle: read the numbers, flag every mine and clear the minefield as fast as you can.
Free logic games online
Games won by careful reasoning rather than luck or reflexes. Every puzzle has a solution you can reach step by step, so you never need to guess. Free to play in your browser, with hints when you get stuck.
Sudoku
Classic 9×9 Sudoku with five difficulty levels, a new daily puzzle, notes, hints that explain themselves and unlimited undo.