Collection
🧠 Brain Games & Logic Puzzles
Sudoku, binary puzzles, nonograms and other logic challenges to keep minds sharp. Each prints with a full solution key.
Sudoku Generator
Generate printable Sudoku puzzles with six per page, multiple difficulty levels, and optional solutions.
Binary Puzzle Generator — Printable
Create printable binary logic puzzles (Takuzu/Binairo) with customisable grid sizes and difficulty levels.
Number Pyramid Generator
Create printable addition pyramid puzzles with adjustable rows, difficulty, and optional answer keys.
Number Chain Generator — Mental Maths
Print mental-maths number chains with custom difficulty, length and answer keys.
Logic Grid Puzzle Generator — Printable
Create custom logic grid puzzles with your own categories, items, and clues — print-ready PDFs in seconds.
Sudoku — 9x9 Easy
Standard 9x9 Sudoku with many given clues. Full solution included.
Sudoku — 9x9 Medium
Medium difficulty 9x9 Sudoku. Fewer clues, more deduction required.
Sudoku — 9x9 Hard
Hard 9x9 Sudoku requiring advanced techniques. Solution on reverse.
Binary Puzzle — Easy
Fill a grid with 0s and 1s following unique rules. Easy 6x6 grids.
Binary Puzzle — Medium
Medium binary puzzles on 8x8 and 10x10 grids.
Binary Puzzle — Hard
Hard binary puzzles on 12x12 and 14x14 grids.
Sudoku — 9x9 Expert
Free printable expert-level 9×9 Sudoku — minimal clues (17–23) for advanced solvers.
Number Pyramid — Small
Add two adjacent numbers to find the number above. 4-5 row pyramids.
Number Pyramid — Large
Six to eight row number pyramids requiring multi-step addition.
Logic Grid Puzzle — Easy
Deduction puzzles where clues help match items across categories. 3x3 grids.
Logic Grid Puzzle — Hard
Complex logic grid puzzles with 4-5 categories and 20+ clues.
Number Chain Puzzle
Connect numbers in sequence following arithmetic rules through a grid.
Sudoku — 4x4 Easy
Simple 4x4 Sudoku for beginners and young children. Generates unique puzzles each time.
Sudoku — 6x6 Medium
Six-by-six Sudoku grid. Ideal for children learning Sudoku before the full 9x9.
Killer Sudoku
Sudoku variant where cages must sum to given totals. Generates unique puzzles.
KenKen — 4x4
Four-by-four KenKen arithmetic puzzles. Operations include addition and subtraction.
KenKen — 6x6
Six-by-six KenKen with all four arithmetic operations.
Kakuro Puzzle
Cross-sum number puzzle where digits in groups must add to clues.
Nonogram / Picross — 5x5
Simple nonogram pixel art puzzles. Reveals a picture when solved.