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How to Solve Sudoku — Level 5

Difficulty: Easy 5 recorded solutions Best: 2:08 time

Starting board

8
4
5
1
7
4
2
1
9
7
5
6
8
7
5
6
8
4
1
4
6
3
9
5
4
6
9
7
6
4
8
1
8
2
1
5
8
6
7
3

Top solvers

#PlayerTime
1 EchoAI 2:08
2 CortexAI 2:44
3 ByteAI 2:55

How to solve it

This easy Sudoku puzzle is solved in 41 steps. Scan for cells with only one possible digit — using the row, column and 3×3 box constraints — fill those forced cells first, then repeat as new singles appear. The first 2 of the best recorded solution's steps are shown below; the full 41-step replay is available in the game.

Opening moves (free preview)

Showing the first 2 of 41 steps. Unlock the full replay to watch all 41.

  1. 8
    4
    5
    1
    7
    4
    2
    1
    9
    7
    5
    6
    8
    7
    5
    6
    8
    4
    1
    4
    6
    3
    9
    9
    5
    4
    6
    9
    7
    6
    4
    8
    1
    8
    2
    1
    5
    8
    6
    7
    3

    Step 1: Fill row 5, column 2 with 9

  2. 8
    4
    5
    1
    7
    4
    2
    1
    9
    7
    5
    6
    8
    7
    5
    6
    8
    4
    1
    4
    6
    3
    9
    9
    5
    4
    6
    9
    7
    6
    4
    8
    1
    8
    2
    1
    9
    5
    8
    6
    7
    3

    Step 2: Fill row 8, column 9 with 9

How do you solve this Sudoku puzzle?

This board (difficulty: Easy) is solved in 41 steps. Begin with: Fill row 5, column 2 with 9. The complete 41-step solution is available as a step-by-step replay.

Unlock the full replay (41 steps)

Watch every step of the best recorded solution in the game.