Lumenine

Quick play

Lumenine: sudoku under the fireworks

Lumenine is a free sudoku game (also called number place). Fill the grid so every row, column and box holds 1 to 9 once each. Every puzzle is made fresh by the game, has exactly one solution and can be solved by logic alone. Its difficulty comes from the hardest technique it takes: Easy puzzles need only singles, while Master puzzles need chains.

Ways to play

Stuck? Hint explains the next logical step on your own grid, from hidden singles to X-Wings and XY-Chains.