Step 0 Starting puzzle |
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Step 1 The number 4 does not yet appear in row G. Due to other 4s on the grid, the only place it can go is cell G5.
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Step 2 The number 1 does not yet appear in column 2. Due to other 1s on the grid, the only place it can go is cell I2.
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Step 3 Because of the number 1 just placed, the only position in row H for another 1 is cell H7.
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2 |
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1 |
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7 |
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Step 4 The number 2 does not yet appear in column 3. Due to other 2s on the grid, the only place it can go is cell D3.
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B |
2 |
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5 |
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1 |
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2 |
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6 |
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Step 5 The number 8 is missing from box G1-I3 and its only possible position is cell G2.
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2 |
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1 |
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7 |
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6 |
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6 |
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7 |
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Step 6 Because of the number 8 just placed, the only position in column 1 for another 8 is cell A1.
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A |
8 |
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2 |
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5 |
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1 |
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1 |
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D |
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7 |
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6 |
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4 |
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6 |
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1 |
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1 |
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Step 7 The number 6 is missing from box A7-C9 and its only possible position is cell A8.
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A |
8 |
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6 |
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2 |
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5 |
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1 |
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3 |
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6 |
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4 |
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6 |
8 |
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7 |
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9 |
1 |
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Step 8 Because of the number 6 just placed, the only position in column 9 for another 6 is cell I9.
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A |
8 |
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6 |
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B |
2 |
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5 |
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3 |
1 |
8 |
C |
1 |
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6 |
4 |
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5 |
D |
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2 |
7 |
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5 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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G |
6 |
8 |
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4 |
1 |
7 |
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7 |
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3 |
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9 |
1 |
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4 |
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4 |
1 |
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6 |
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Step 9 The number 4 is missing from box A7-C9 and its only possible position is cell A7.
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9 |
A |
8 |
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4 |
6 |
9 |
B |
2 |
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5 |
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3 |
1 |
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C |
1 |
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6 |
4 |
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5 |
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3 |
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6 |
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F |
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1 |
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4 |
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6 |
8 |
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7 |
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3 |
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9 |
1 |
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4 |
1 |
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Step 10 The number 7 is missing from box A7-C9 and its only possible position is cell C8.
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A |
8 |
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6 |
9 |
B |
2 |
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5 |
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1 |
8 |
C |
1 |
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6 |
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7 |
5 |
D |
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2 |
7 |
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6 |
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1 |
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1 |
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Step 11 C7 is the last empty cell in box A7-C9 and the missing number is 2.
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A |
8 |
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9 |
B |
2 |
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5 |
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C |
1 |
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2 |
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6 |
8 |
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9 |
1 |
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1 |
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Step 12 The number 4 is missing from column 3 and its only possible position is cell B3.
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9 |
A |
8 |
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4 |
6 |
9 |
B |
2 |
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4 |
5 |
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3 |
1 |
8 |
C |
1 |
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2 |
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2 |
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6 |
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6 |
8 |
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7 |
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3 |
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9 |
1 |
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4 |
1 |
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Step 13 The number 7 is missing from column 3 and its only possible position is cell A3.
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8 |
9 |
A |
8 |
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7 |
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4 |
6 |
9 |
B |
2 |
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4 |
5 |
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3 |
1 |
8 |
C |
1 |
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6 |
4 |
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2 |
7 |
5 |
D |
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2 |
7 |
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8 |
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6 |
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F |
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1 |
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6 |
8 |
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4 |
1 |
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7 |
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3 |
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9 |
1 |
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4 |
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4 |
1 |
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6 |
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Step 14 The number 5 does not yet appear in row A. Due to other 5s on the grid, the only place it can go is cell A2.
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8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
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4 |
5 |
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3 |
1 |
8 |
C |
1 |
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6 |
4 |
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2 |
7 |
5 |
D |
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2 |
7 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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6 |
8 |
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4 |
1 |
7 |
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H |
7 |
2 |
3 |
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9 |
1 |
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4 |
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4 |
1 |
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6 |
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Step 15 The number 3 is missing from box A1-C3 and its only possible position is cell C2.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
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4 |
5 |
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3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
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2 |
7 |
5 |
D |
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2 |
7 |
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5 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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G |
6 |
8 |
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4 |
1 |
7 |
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2 |
H |
7 |
2 |
3 |
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9 |
1 |
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4 |
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4 |
1 |
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Step 16 B2 is the last empty cell in box A1-C3 and the missing number is 9.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
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3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
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2 |
7 |
5 |
D |
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2 |
7 |
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5 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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G |
6 |
8 |
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4 |
1 |
7 |
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2 |
H |
7 |
2 |
3 |
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9 |
1 |
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4 |
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4 |
1 |
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Step 17 Because of the number 9 just placed, the only position in row C for another 9 is cell C5.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
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3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
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2 |
7 |
5 |
D |
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2 |
7 |
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5 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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6 |
8 |
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4 |
1 |
7 |
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7 |
2 |
3 |
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9 |
1 |
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4 |
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4 |
1 |
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6 |
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Step 18 C6 is the last empty cell in row C and the missing number is 8.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
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3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
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2 |
7 |
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5 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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6 |
8 |
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4 |
1 |
7 |
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H |
7 |
2 |
3 |
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9 |
1 |
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4 |
1 |
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6 |
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Step 19 Cell G4 can only contain the number 3 since all other numbers are somewhere in its row, column or box.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
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3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
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2 |
7 |
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5 |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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G |
6 |
8 |
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3 |
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1 |
7 |
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H |
7 |
2 |
3 |
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9 |
1 |
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4 |
1 |
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Step 20 Because of the number 3 just placed, the only position in row I for another 3 is cell I8.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
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4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
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3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
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2 |
7 |
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5 |
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E |
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8 |
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3 |
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6 |
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F |
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1 |
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4 |
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G |
6 |
8 |
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3 |
4 |
1 |
7 |
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H |
7 |
2 |
3 |
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9 |
1 |
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4 |
1 |
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3 |
6 |
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Step 21 Because of the number 3 just placed, the only position in column 6 for another 3 is cell A6.
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6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
|
|
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
|
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
|
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
|
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
|
|
|
3 |
6 |
|
Step 22 Cell D6 can only contain the number 6 since all other numbers are somewhere in its row, column or box.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
|
|
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
|
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
|
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
|
|
|
3 |
6 |
|
Step 23 Because of the number 6 just placed, the only position in row F for another 6 is cell F2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
|
|
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
|
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
|
|
|
3 |
6 |
|
Step 24 The number 6 does not yet appear in row B. Due to other 6s on the grid, the only place it can go is cell B5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
|
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
|
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
|
|
|
3 |
6 |
|
Step 25 Because of the number 6 just placed, the only position in column 4 for another 6 is cell H4.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
|
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
|
|
|
3 |
6 |
|
Step 26 B6 is the last empty cell in row B and the missing number is 7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
|
|
|
3 |
6 |
|
Step 27 Because of the number 7 just placed, the only position in column 5 for another 7 is cell I5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
|
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 28 The number 7 does not yet appear in column 2. Due to other 7s on the grid, the only place it can go is cell E2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
7 |
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
|
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 29 Because of the number 7 just placed, the only position in row F for another 7 is cell F9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
|
2 |
7 |
|
6 |
5 |
|
|
E |
|
7 |
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 30 D2 is the last empty cell in column 2 and the missing number is 4.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
|
6 |
5 |
|
|
E |
|
7 |
8 |
|
3 |
|
6 |
|
|
F |
|
6 |
1 |
|
|
4 |
|
|
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 31 Because of the number 4 just placed, the only position in row E for another 4 is cell E8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
|
6 |
5 |
|
|
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
|
F |
|
6 |
1 |
|
|
4 |
|
|
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 32 The number 2 does not yet appear in column 8. Due to other 2s on the grid, the only place it can go is cell F8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
|
6 |
5 |
|
|
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
|
F |
|
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 33 The number 3 does not yet appear in column 9. Due to other 3s on the grid, the only place it can go is cell D9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
|
6 |
5 |
|
3 |
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
|
F |
|
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 34 Because of the number 3 just placed, the only position in row F for another 3 is cell F1.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
|
6 |
5 |
|
3 |
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
|
F |
3 |
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 35 E9 is the last empty cell in column 9 and the missing number is 1.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
|
6 |
5 |
|
3 |
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 36 Because of the number 1 just placed, the only position in row D for another 1 is cell D5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
|
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 37 Because of the number 1 just placed, the only position in column 4 for another 1 is cell A4.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
|
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 38 A5 is the last empty cell in box A4-C6 and the missing number is 2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
|
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 39 The number 5 is missing from box D1-F3 and its only possible position is cell E1.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
|
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 40 Because of the number 5 just placed, the only position in row F for another 5 is cell F5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
|
|
3 |
6 |
|
Step 41 Because of the number 5 just placed, the only position in column 6 for another 5 is cell I6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
|
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
5 |
|
3 |
6 |
|
Step 42 Because of the number 5 just placed, the only position in column 3 for another 5 is cell G3.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
|
4 |
I |
4 |
1 |
|
|
7 |
5 |
|
3 |
6 |
|
Step 43 Because of the number 5 just placed, the only position in row H for another 5 is cell H8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
|
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
|
|
7 |
5 |
|
3 |
6 |
|
Step 44 D1 is the last empty cell in box D1-F3 and the missing number is 9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
|
|
7 |
5 |
|
3 |
6 |
|
Step 45 I3 is the last empty cell in column 3 and the missing number is 9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
|
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 46 G8 is the last empty cell in row G and the missing number is 9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
|
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 47 Because of the number 9 just placed, the only position in column 7 for another 9 is cell F7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
|
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 48 Because of the number 9 just placed, the only position in row E for another 9 is cell E4.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
|
3 |
E |
5 |
7 |
8 |
9 |
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 49 D8 is the last empty cell in box D7-F9 and the missing number is 8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
8 |
3 |
E |
5 |
7 |
8 |
9 |
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
|
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 50 F4 is the last empty cell in row F and the missing number is 8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
8 |
3 |
E |
5 |
7 |
8 |
9 |
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
8 |
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
|
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 51 H5 is the last empty cell in column 5 and the missing number is 8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
8 |
3 |
E |
5 |
7 |
8 |
9 |
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
8 |
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
8 |
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
|
3 |
6 |
|
Step 52 Because of the number 8 just placed, the only position in row I for another 8 is cell I7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
8 |
3 |
E |
5 |
7 |
8 |
9 |
3 |
|
6 |
4 |
1 |
F |
3 |
6 |
1 |
8 |
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
8 |
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
8 |
3 |
6 |
|
Step 53 E6 is the last empty cell in box D4-F6 and the missing number is 2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
8 |
3 |
E |
5 |
7 |
8 |
9 |
3 |
2 |
6 |
4 |
1 |
F |
3 |
6 |
1 |
8 |
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
8 |
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
|
7 |
5 |
8 |
3 |
6 |
|
Step 54 I4 is the last empty cell in column 4 and the missing number is 2.
Congratulations - the puzzle is solved!
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
8 |
5 |
7 |
1 |
2 |
3 |
4 |
6 |
9 |
B |
2 |
9 |
4 |
5 |
6 |
7 |
3 |
1 |
8 |
C |
1 |
3 |
6 |
4 |
9 |
8 |
2 |
7 |
5 |
D |
9 |
4 |
2 |
7 |
1 |
6 |
5 |
8 |
3 |
E |
5 |
7 |
8 |
9 |
3 |
2 |
6 |
4 |
1 |
F |
3 |
6 |
1 |
8 |
5 |
4 |
9 |
2 |
7 |
G |
6 |
8 |
5 |
3 |
4 |
1 |
7 |
9 |
2 |
H |
7 |
2 |
3 |
6 |
8 |
9 |
1 |
5 |
4 |
I |
4 |
1 |
9 |
2 |
7 |
5 |
8 |
3 |
6 |
|
©