🔢 Puzzles
🔢Sudoku
The classic. Play at four difficulties, solve one you're stuck on, or print a stack with answer keys.
🖨Printable Sudoku
Generate and print a whole pack of Sudoku — easy to expert — with answer keys. No sign-up.
🔠Super Sudoku 16×16
Sudoku turned up to eleven — a 16×16 grid using 1-9 and A-G. Daily puzzle, solver & printables.
➕Kakuro
A crossword with numbers — fill each run to hit the clue total, no repeats. Daily puzzle & printable packs.
✖️MathDoku
Fill the grid so rows, columns and math cages all work out. Sizes 4×4 to 6×6.
🎯Make 24
Use four numbers and + − × ÷ to make 24. Play a deal, or solve any four numbers.