Sudoku Six
Bite-size 6x6 sudoku with 24 lessons that add one new rule at a time: sum cages, grey even squares, diagonals and sum arrows. Earn three stars with clean solves, or play endless Free play puzzles.
Play nowHow to play
Controls
TapHoldKeyboard←→↑↓ N H- Tap a cell, then a number.
- Rows, columns and 2x3 boxes hold 1-6 once; obey each lesson's extra rule.
- No mistakes or hints = 3 stars.
- Keys: arrows, 1-6, N, H.
About the game
Sudoku Six is sudoku in a quicker size: a six by six grid of 2 by 3 boxes where every row, column and box holds 1 to 6 once. Its 24 lessons add one new rule at a time: dashed cages that add up to their corner number, grey squares that only take even numbers, diagonals that also hold 1 to 6, and circles that equal the sum along their arrow. Later lessons mix the rules and take away almost every starting number, yet each one has a single answer you can reach by logic alone.
A wrong number is refused and costs a star, and three mistakes end the lesson. The hint places the next number logic can prove and says why, but it also costs a star, so three stars means a clean solve. Free play keeps endless random puzzles in Easy, Normal or Hard, Classic or Killer cages.
Free to play in your browser. No download, no sign-up. Works on phones, tablets and computers. Your progress is saved on this device.
