Step 0 Starting puzzle |
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Step 1 The number 2 does not yet appear in row B. Due to other 2s on the grid, the only place it can go is cell B7.
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Step 2 The number 8 does not yet appear in row A. Due to other 8s on the grid, the only place it can go is cell A2.
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Step 3 The number 9 does not yet appear in row I. Due to other 9s on the grid, the only place it can go is cell I8.
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Step 4 The number 1 does not yet appear in column 1. Due to other 1s on the grid, the only place it can go is cell B1.
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B |
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Step 5 Because of the number 1 just placed, the only position in row C for another 1 is cell C5.
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Step 6 Because of the number 1 just placed, the only position in column 4 for another 1 is cell F4.
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B |
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Step 7 Because of the number 1 just placed, the only position in row D for another 1 is cell D9.
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B |
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Step 8 Because of the number 1 just placed, the only position in column 8 for another 1 is cell H8.
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B |
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C |
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1 |
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Step 9 The number 3 does not yet appear in column 8. Due to other 3s on the grid, the only place it can go is cell B8.
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A |
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1 |
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B |
1 |
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C |
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1 |
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Step 10 The number 4 is missing from row A and its only possible position is cell A5.
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B |
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C |
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1 |
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Step 11 Because of the number 4 just placed, the only position in column 4 for another 4 is cell E4.
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B |
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C |
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Step 12 The number 4 does not yet appear in column 9. Due to other 4s on the grid, the only place it can go is cell F9.
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A |
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B |
1 |
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C |
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Step 13 The number 9 is missing from column 4 and its only possible position is cell B4.
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A |
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1 |
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B |
1 |
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9 |
8 |
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2 |
3 |
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C |
5 |
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2 |
1 |
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2 |
1 |
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Step 14 The number 9 is missing from row A and its only possible position is cell A9.
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8 |
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A |
7 |
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1 |
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9 |
B |
1 |
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9 |
8 |
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2 |
3 |
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C |
5 |
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2 |
1 |
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8 |
4 |
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1 |
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Step 15 Because of the number 9 just placed, the only position in row C for another 9 is cell C2.
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8 |
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A |
7 |
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4 |
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1 |
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9 |
B |
1 |
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9 |
8 |
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2 |
3 |
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C |
5 |
9 |
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2 |
1 |
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8 |
4 |
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D |
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7 |
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2 |
1 |
E |
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1 |
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3 |
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F |
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1 |
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1 |
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2 |
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Step 16 The number 3 does not yet appear in row C. Due to other 3s on the grid, the only place it can go is cell C3.
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6 |
7 |
8 |
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A |
7 |
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2 |
3 |
4 |
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1 |
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9 |
B |
1 |
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9 |
8 |
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2 |
3 |
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C |
5 |
9 |
3 |
2 |
1 |
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8 |
4 |
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D |
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2 |
1 |
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1 |
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1 |
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Step 17 The number 6 is missing from box A1-C3 and its only possible position is cell B3.
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6 |
7 |
8 |
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A |
7 |
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2 |
3 |
4 |
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1 |
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9 |
B |
1 |
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6 |
9 |
8 |
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2 |
3 |
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C |
5 |
9 |
3 |
2 |
1 |
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8 |
4 |
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D |
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2 |
1 |
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Step 18 B2 is the last empty cell in box A1-C3 and the missing number is 4.
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6 |
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8 |
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A |
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2 |
3 |
4 |
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1 |
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9 |
B |
1 |
4 |
6 |
9 |
8 |
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2 |
3 |
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C |
5 |
9 |
3 |
2 |
1 |
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8 |
4 |
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D |
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2 |
1 |
E |
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1 |
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F |
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4 |
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3 |
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Step 19 The number 8 is missing from row D and its only possible position is cell D1.
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5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
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1 |
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9 |
B |
1 |
4 |
6 |
9 |
8 |
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2 |
3 |
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C |
5 |
9 |
3 |
2 |
1 |
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8 |
4 |
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D |
8 |
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7 |
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2 |
1 |
E |
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1 |
4 |
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3 |
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F |
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6 |
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1 |
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8 |
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4 |
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Step 20 The number 4 does not yet appear in row D. Due to other 4s on the grid, the only place it can go is cell D3.
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5 |
6 |
7 |
8 |
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A |
7 |
8 |
2 |
3 |
4 |
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1 |
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9 |
B |
1 |
4 |
6 |
9 |
8 |
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2 |
3 |
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C |
5 |
9 |
3 |
2 |
1 |
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8 |
4 |
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D |
8 |
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4 |
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2 |
1 |
E |
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4 |
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F |
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3 |
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Step 21 Because of the number 4 just placed, the only position in column 1 for another 4 is cell H1.
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2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
|
|
2 |
1 |
E |
|
|
1 |
4 |
|
|
3 |
|
|
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
|
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
|
|
1 |
|
I |
|
|
8 |
|
|
1 |
4 |
9 |
3 |
|
Step 22 In box A4-C6, the missing 5 can only go in cell A6 or B6. All of these cells are in column 6. Therefore 5 can be eliminated from other cells in column 6 including D6, E6, H6. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
369 |
|
2 |
1 |
E |
|
|
1 |
4 |
|
269 |
3 |
|
|
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
|
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
2367 |
|
1 |
|
I |
|
|
8 |
|
|
1 |
4 |
9 |
3 |
|
Step 23 In box A4-C6, the missing 6 can only go in cell A6 or C6. All of these cells are in column 6. Therefore 6 can be eliminated from other cells in column 6 including D6, E6, H6. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
|
|
1 |
4 |
|
29 |
3 |
|
|
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
|
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
237 |
|
1 |
|
I |
|
|
8 |
|
|
1 |
4 |
9 |
3 |
|
Step 24 In box A4-C6, the missing 7 can only go in cell B6 or C6. All of these cells are in column 6. Therefore 7 can be eliminated from other cells in column 6 including H6. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
|
|
1 |
4 |
|
29 |
3 |
|
|
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
|
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
|
I |
|
|
8 |
|
|
1 |
4 |
9 |
3 |
|
Step 25 In box A7-C9, the missing 7 can only go in cell B9 or C9. All of these cells are in column 9. Therefore 7 can be eliminated from other cells in column 9 including E9, H9. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
|
|
1 |
4 |
|
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
|
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
|
|
8 |
|
|
1 |
4 |
9 |
3 |
|
Step 26 In column 4, the missing 5 can only go in cell G4 or H4 or I4. All of these cells are in box G4-I6. Therefore 5 can be eliminated from other cells in box G4-I6 including G5, I5. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
|
|
1 |
4 |
|
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
367 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
|
|
8 |
|
267 |
1 |
4 |
9 |
3 |
|
Step 27 In column 4, the missing 6 can only go in cell G4 or H4 or I4. All of these cells are in box G4-I6. Therefore 6 can be eliminated from other cells in box G4-I6 including G5, I5. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
|
|
1 |
4 |
|
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
37 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
|
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 28 In row E, each of the cells E1 and E6 can only take one of the numbers 2 or 9. These 2 cells will use up these 2 numbers between them. Therefore the numbers can be eliminated from E2, E5 in row E. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
37 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
|
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 29 In column 2, the missing 2 can only go in cell H2 or I2. All of these cells are in box G1-I3. Therefore 2 can be eliminated from other cells in box G1-I3 including I1. The remaining possibilities are marked with small numbers.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
37 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 30 Cell I1 can only contain the number 6 since all other possible numbers have been eliminated.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
|
1 |
9 |
|
37 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 31 Cell G1 can only contain the number 3 since all other numbers are somewhere in its row, column or box.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
39 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
23 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 32 Because of the number 3 just placed, the only position in row H for another 3 is cell H6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
|
4 |
7 |
|
9 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 33 Because of the number 3 just placed, the only position in column 2 for another 3 is cell D2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
|
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 34 Because of the number 3 just placed, the only position in row F for another 3 is cell F5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
29 |
57 |
1 |
4 |
56 |
29 |
3 |
|
568 |
F |
|
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 35 The number 2 is missing from box D4-F6 and its only possible position is cell E6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
|
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 36 Because of the number 2 just placed, the only position in row F for another 2 is cell F1.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
27 |
1 |
4 |
9 |
3 |
|
Step 37 Because of the number 2 just placed, the only position in column 5 for another 2 is cell I5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
|
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 38 Because of the number 2 just placed, the only position in column 2 for another 2 is cell H2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 39 E1 is the last empty cell in column 1 and the missing number is 9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 40 The number 9 does not yet appear in column 6. Due to other 9s on the grid, the only place it can go is cell D6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
|
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 41 Because of the number 9 just placed, the only position in row F for another 9 is cell F7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
57 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
9 |
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
|
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 42 The number 7 is missing from row I and its only possible position is cell I2.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
|
1 |
3 |
8 |
9 |
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 43 Because of the number 7 just placed, the only position in column 3 for another 7 is cell F3.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
56 |
2 |
3 |
|
568 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 44 Because of the number 7 just placed, the only position in row E for another 7 is cell E8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
56 |
2 |
3 |
7 |
568 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 45 E2 is the last empty cell in box D1-F3 and the missing number is 5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
68 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
|
|
9 |
3 |
|
1 |
568 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 46 H3 is the last empty cell in column 3 and the missing number is 5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
68 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
|
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
68 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 47 F8 is the last empty cell in row F and the missing number is 5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
|
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
68 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
68 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 48 Because of the number 5 just placed, the only position in row D for another 5 is cell D5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
68 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
68 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 49 E5 is the last empty cell in box D4-F6 and the missing number is 6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
|
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
68 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 50 D7 is the last empty cell in row D and the missing number is 6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
68 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 51 E9 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 |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
|
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 52 Because of the number 8 just placed, the only position in column 8 for another 8 is cell G8.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
8 |
2 |
H |
4 |
2 |
5 |
|
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 53 Because of the number 8 just placed, the only position in row H for another 8 is cell H4.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
|
2 |
1 |
4 |
9 |
3 |
|
Step 54 I4 is the last empty cell in row I and the missing number is 5.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
|
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 55 Because of the number 5 just placed, the only position in row G for another 5 is cell G7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
|
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 56 Because of the number 5 just placed, the only position in column 9 for another 5 is cell B9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
|
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 57 Because of the number 5 just placed, the only position in column 6 for another 5 is cell A6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
|
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 58 A8 is the last empty cell in row A and the missing number is 6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
|
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 59 Because of the number 6 just placed, the only position in row C for another 6 is cell C6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
|
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 60 G4 is the last empty cell in column 4 and the missing number is 6.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
6 |
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 61 Because of the number 6 just placed, the only position in row H for another 6 is cell H9.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
|
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
6 |
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 62 B6 is the last empty cell in box A4-C6 and the missing number is 7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
7 |
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
|
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
6 |
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 63 C9 is the last empty cell in row C and the missing number is 7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
7 |
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
7 |
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
6 |
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 64 G5 is the last empty cell in column 5 and the missing number is 7.
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
7 |
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
7 |
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
6 |
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
|
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
Step 65 H7 is the last empty cell in row H and the missing number is 7.
Congratulations - the puzzle is solved!
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
7 |
8 |
2 |
3 |
4 |
5 |
1 |
6 |
9 |
B |
1 |
4 |
6 |
9 |
8 |
7 |
2 |
3 |
5 |
C |
5 |
9 |
3 |
2 |
1 |
6 |
8 |
4 |
7 |
D |
8 |
3 |
4 |
7 |
5 |
9 |
6 |
2 |
1 |
E |
9 |
5 |
1 |
4 |
6 |
2 |
3 |
7 |
8 |
F |
2 |
6 |
7 |
1 |
3 |
8 |
9 |
5 |
4 |
G |
3 |
1 |
9 |
6 |
7 |
4 |
5 |
8 |
2 |
H |
4 |
2 |
5 |
8 |
9 |
3 |
7 |
1 |
6 |
I |
6 |
7 |
8 |
5 |
2 |
1 |
4 |
9 |
3 |
|
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