Sudoku/ Tricky catalogue

Sudoku No. 101

Tricky0:00
3
9
4
9
8
1
4
2
3
5
2
3
7
3
8
4
3
7
4
6
5
4
2
1
6
6
5
9
←↑→↓ move, 1–9 enter, Shift+digit or N for notes, ⌫ erase, Ctrl+Z undo.

How to play Sudoku

  • Fill every empty square with a digit from 1 to 9.
  • Each row, each column and each of the nine 3×3 boxes contains every digit exactly once.
  • The printed digits are fixed. Every puzzle has one solution and never needs a guess.

←↑→↓ move, 1–9 enter, Shift+digit or N for notes, ⌫ erase, Ctrl+Z undo.

Hints explain one step from your current board. Reveal fills in what a hint proved and is counted separately.