Mini Sudoku
From 4×4 to 9×9, one logical step at a time.
Mini Sudoku
A progressive Sudoku campaign from 4×4 to 6×6 to 9×9 — 60 puzzles, each with exactly one solution, with notes, checks and explained hints.
About the Game
Mini Sudoku is a number logic campaign from ZOQSY Brain Games. Fill the grid so that every row, every column and every outlined box contains each number exactly once. The 60 levels start on small 4×4 boards with 2×2 boxes, move to 6×6 boards with 3×2 boxes and finish on classic 9×9 grids with fewer and fewer starting numbers. Every puzzle was checked by a solver to have exactly one solution, and every one can be finished by logic alone — no guessing. Select a cell and tap a number on the on-screen keypad (or type it), pencil in notes, and see matching numbers highlighted. Repeated numbers turn red; the optional Check marks entries that are wrong. Hints explain the next logical step — the only number that fits a cell, or the only place a number can go. Undo, redo, erase, restart and a timer with a target time. Progress, stars and best times are saved in your browser.
How to Play
Select an empty cell and enter a number with the keypad or your keyboard. Every row, column and outlined box must contain each number exactly once (1–4 on 4×4, 1–6 on 6×6, 1–9 on 9×9). Use Notes to pencil in candidates. Numbers that repeat in a row, column or box turn red. Turn on Check to mark wrong entries. The level is solved when the grid is full and every rule holds.
Controls
- Tap or click a cellSelect it
- Number keypad or 1–9 keysEnter a number
- Notes button or NPencil notes on/off
- Erase, Backspace or 0Clear a cell · Arrow keys — Move
- Ctrl+Z / Ctrl+YUndo / Redo · H — Hint
Features
- 60 puzzles: 4×4 (2×2 boxes), 6×6 (3×2 boxes) and 9×9 (3×3 boxes)
- Every puzzle has exactly one solution and can be solved by logic alone
- Pencil notes, matching-number and conflict highlighting, optional error check
- Hints that explain the next logical deduction
- On-screen number pad sized for phones, plus full keyboard support
- Timer, stars, best times and saved progress in your browser
Gameplay Tips
- Look for a number that has only one possible place in a row, column or box.
- Count what a cell can see: if eight numbers are blocked, the ninth must go there.
- Pencil notes in tight boxes first; pairs of candidates often unlock the rest.
- Matching numbers are highlighted — use them to scan a number across the grid.
FAQ
How is Mini Sudoku different from regular Sudoku?
It starts small: 4×4 boards with the numbers 1–4, then 6×6 with 1–6, and finally the classic 9×9. The rules are the same on every size.
Is there always exactly one solution?
Yes. Every puzzle was checked by a solver to have exactly one solution, and each can be finished with logical steps alone.
What does Check do?
Repeated numbers always turn red. With Check on, numbers that do not match the solution are also marked, so you can catch mistakes early.
Is my progress saved?
Yes, in your browser on this device: solved levels, stars, best times and an unfinished grid you can resume.
