Free Printable Easy Sudoku Puzzles - Free Printable
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Step-by-step solution for: Free Printable Easy Sudoku Puzzles
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Show Answer Key & Explanations
Step-by-step solution for: Free Printable Easy Sudoku Puzzles
Let's solve this Sudoku puzzle step by step. The goal of Sudoku is to fill a 9×9 grid so that each row, each column, and each of the nine 3×3 subgrids (also called "boxes") contains all of the digits from 1 to 9 exactly once.
We'll go through the puzzle logically, using elimination and deduction.
Here’s the initial grid:
```
+-------+-------+-------+
| 6 | 7 5 | 9 |
| 1 | 3 8 2 | 7 |
| | 6 | 5 |
+-------+-------+-------+
| | 8 | 4 3 | 5 |
| 3 9 | 8 | |
| | 1 | |
+-------+-------+-------+
| 9 6 | 8 7 1 2 |
| | 7 3 9 5 6 8 |
| 5 | 6 2 1 9 4 | |
+-------+-------+-------+
```
We’ll label rows from top to bottom as R1 to R9 and columns as C1 to C9.
---
Let’s start with R1C1 (first row, first column). It's empty.
Check what numbers are missing in R1:
- R1 has: 6, 7, 5, 9 → missing: 1, 2, 3, 4, 8
- C1 has: 1, ?, ?, 3, ?, 9, ?, ?, 5 → values present: 1, 3, 5, 9 → missing: 2, 4, 6, 7, 8
- Box 1 (top-left 3x3): cells include R1C1, R1C2=6, R1C3=?, R2C1=1, R2C2=3, R2C3=8, R3C1=?, R3C2=?, R3C3=?
- Present: 1, 3, 6, 8 → missing: 2, 4, 5, 7, 9
So R1C1 must be one of: 2, 4, 8 (from R1), 2, 4, 6, 7, 8 (C1), and 2, 4, 5, 7, 9 (box) → common: 2, 4
Not yet clear. Let's look elsewhere.
---
R2: [1, ?, 3, 8, 2, ?, 7, ?, ?]
Missing: 4, 5, 6, 9
C4: R1C4=7, R2C4=8, R3C4=6, R4C4=4, R5C4=8 → wait, R5C4=8 already?
Wait — let's list C4:
- R1C4 = 7
- R2C4 = 8
- R3C4 = 6
- R4C4 = 4
- R5C4 = ?
- R6C4 = 8 → Wait! R6C4 = 8? But R2C4 is also 8 → same column!
Wait — let's recheck the original image carefully.
Looking at the grid again:
Row 6: 9, 6, ?, 8, 7, 1, 2 → so R6C4 = 8
But R2C4 = 8 → both in C4 → conflict? No — wait, no, R2C4 is 8? Let's check:
Row 2: 1, ?, 3, 8, 2, ?, 7, ?, ?
Yes, R2C4 = 8
And R6C4 = 8 → both in column 4 → duplicate 8 → not allowed.
Wait — but that would make the puzzle invalid. Unless I misread.
Wait — no, let's double-check the original puzzle.
Looking at the image:
- Row 2: 1, ?, 3, 8, 2, ?, 7, ?, ?
- Row 6: 9, 6, ?, 8, 7, 1, 2 → yes, R6C4 = 8
So C4 has two 8s: R2C4 and R6C4 → impossible.
Wait — is there a typo?
Wait — perhaps I'm misreading the positions.
Let me reconstruct the grid carefully.
From the image:
```
Row 1: 6 | 7 5 | 9
Row 2: 1 | 3 8 2 | 7
Row 3: | 6 | 5
Row 4: | 8 | 4 3 | 5
Row 5: 3 9 | 8 |
Row 6: 9 6 | 8 7 1 2
Row 7: | 7 3 9 5 6 8
Row 8: 5 | 6 2 1 9 4 |
```
Now let's write it clearly with coordinates.
Let me create a full 9x9 grid.
```
Row 1: [ , 6, , , 7, 5, , , 9]
Row 2: [1, , 3, 8, 2, , 7, , ]
Row 3: [ , , , , 6, , 5, , ]
Row 4: [ , , 8, , 4, 3, , 5, ]
Row 5: [3, 9, , 8, , , , , ]
Row 6: [9, , 6, , 8, 7, 1, 2, ]
Row 7: [ , , , 7, 3, 9, 5, 6, 8]
Row 8: [5, , , 6, 2, 1, 9, 4, ]
Row 9: [ , , , , , , , , ]
```
Now let's fix C4:
- R1C4 = ?
- R2C4 = 8
- R3C4 = ?
- R4C4 = ?
- R5C4 = 8 → Wait, R5C4 = 8
- R6C4 = ?
- R7C4 = 7
- R8C4 = 6
- R9C4 = ?
Wait — R5C4 = 8? From Row 5: [3,9,?,8,...] → yes, R5C4 = 8
But R2C4 = 8 → both in C4 → duplicate 8 in column 4 → invalid.
Wait — unless I'm reading wrong.
Row 5: [3,9,?,8,?,?]
So R5C4 = 8
Row 2: [1,?,3,8,2,?,7,?,?] → R2C4 = 8
So both R2C4 and R5C4 = 8 → same column → invalid.
That can't be.
Unless... maybe the image has a typo?
Wait — let's look back at the image.
In Row 5: “3 9 | 8 | ” → so third box starts at C4, so R5C4 = 8
Row 2: “1 | 3 8 2 | 7 ” → second box: C4,C5,C6 → R2C4 = 8
So yes, both R2C4 and R5C4 = 8 → same column → conflict.
But that means the puzzle is invalid.
Wait — could it be that R5C4 is not 8?
Let me re-express the grid carefully.
Let’s number the boxes:
Box 1: R1-3, C1-3
Box 2: R1-3, C4-6
Box 3: R1-3, C7-9
Box 4: R4-6, C1-3
Box 5: R4-6, C4-6
Box 6: R4-6, C7-9
Box 7: R7-9, C1-3
Box 8: R7-9, C4-6
Box 9: R7-9, C7-9
Now, let’s extract each cell:
Row 1:
C1: blank
C2: 6
C3: blank
C4: 7
C5: 5
C6: blank
C7: blank
C8: blank
C9: 9
Row 2:
C1: 1
C2: blank
C3: 3
C4: 8
C5: 2
C6: blank
C7: 7
C8: blank
C9: blank
Row 3:
C1: blank
C2: blank
C3: blank
C4: blank
C5: 6
C6: blank
C7: 5
C8: blank
C9: blank
Row 4:
C1: blank
C2: blank
C3: 8
C4: blank
C5: 4
C6: 3
C7: blank
C8: 5
C9: blank
Row 5:
C1: 3
C2: 9
C3: blank
C4: 8
C5: blank
C6: blank
C7: blank
C8: blank
C9: blank
Row 6:
C1: 9
C2: blank
C3: 6
C4: blank
C5: 8
C6: 7
C7: 1
C8: 2
C9: blank
Row 7:
C1: blank
C2: blank
C3: blank
C4: 7
C5: 3
C6: 9
C7: 5
C8: 6
C9: 8
Row 8:
C1: 5
C2: blank
C3: blank
C4: 6
C5: 2
C6: 1
C7: 9
C8: 4
C9: blank
Row 9:
C1: blank
C2: blank
C3: blank
C4: blank
C5: blank
C6: blank
C7: blank
C8: blank
C9: blank
Now, check column 4:
- R1C4 = 7
- R2C4 = 8
- R3C4 = ?
- R4C4 = ?
- R5C4 = 8 ← oh! R5C4 = 8
- R6C4 = ?
- R7C4 = 7
- R8C4 = 6
- R9C4 = ?
So C4 has:
- R1C4 = 7
- R2C4 = 8
- R5C4 = 8 → same as R2C4 → duplicate 8 in column 4 → invalid!
This is a problem.
But wait — is R5C4 really 8?
Look at Row 5: “3 9 | 8 | ”
The middle box (C4-C6) has: R5C4 = 8, R5C5 = ?, R5C6 = ?
But R2C4 = 8 → same column → cannot have two 8s.
So either the puzzle has a typo or I'm misreading.
Wait — perhaps the 8 in R5C4 is not in C4?
No — in row 5, the third number is blank, then the next is 8 — so it's in C4.
But R2C4 is also 8.
So C4 has two 8s → invalid.
Alternatively, maybe the puzzle is correct and I made a mistake.
Wait — let's check if the puzzle might have been printed incorrectly.
Another possibility: maybe the 8 in row 5 is in C3?
But row 5: “3 9 | 8 | ” → the first three cells: C1=3, C2=9, C3=? → then C4=8
Yes.
Similarly, row 2: “1 | 3 8 2 | 7 ” → C1=1, C2=?, C3=3, C4=8, C5=2, C6=?, C7=7, C8=?, C9=?
So R2C4=8
So both R2C4 and R5C4 = 8 → same column → invalid.
Therefore, the puzzle as given has an error.
But wait — let's check if R5C4 is actually 8.
Perhaps it's not — maybe it's a different digit.
Wait — looking at the image again: in row 5, after "3 9", there's a blank, then "8" — so yes, it's in C4.
But perhaps the "8" is in C3?
No — the format is:
Row 5: 3 9 | 8 | → so the "8" is in the second box, which is C4-C6.
So C4.
So R5C4 = 8.
Same as R2C4.
So duplicate.
Thus, the puzzle is invalid.
But maybe I'm mistaken.
Wait — let's check R7C4 = 7, R8C4 = 6, R1C4 = 7 → so R1C4 and R7C4 both 7 → also duplicate in C4!
R1C4 = 7, R7C4 = 7 → same column → another duplicate!
So now we have:
- C4: R1C4 = 7, R2C4 = 8, R5C4 = 8, R7C4 = 7 → duplicates of 7 and 8 → invalid.
So the puzzle has multiple errors.
But that can’t be — perhaps I’m misreading the image.
Let me try to see the actual image more carefully.
Looking at the original:
Row 1: 6, ?, ?, 7, 5, ?, ?, 9
Row 2: 1, ?, 3, 8, 2, ?, 7, ?, ?
Row 3: ?, ?, ?, ?, 6, ?, 5, ?, ?
Row 4: ?, ?, 8, ?, 4, 3, ?, 5, ?
Row 5: 3, 9, ?, 8, ?, ?, ?, ?, ?
Row 6: 9, ?, 6, ?, 8, 7, 1, 2, ?
Row 7: ?, ?, ?, 7, 3, 9, 5, 6, 8
Row 8: 5, ?, ?, 6, 2, 1, 9, 4, ?
Row 9: ?, ?, ?, ?, ?, ?, ?, ?, ?
Now C4:
- R1C4 = 7
- R2C4 = 8
- R3C4 = ?
- R4C4 = ?
- R5C4 = 8
- R6C4 = ?
- R7C4 = 7
- R8C4 = 6
- R9C4 = ?
So:
- 7 appears twice (R1 and R7)
- 8 appears twice (R2 and R5)
So the puzzle has duplicate values in column 4 → unsolvable as is.
Therefore, likely there is a typo in the puzzle.
But perhaps the 8 in R5C4 is meant to be something else?
Or the 8 in R2C4?
Alternatively, maybe the 8 in R5C4 is in C3?
But the formatting shows: “3 9 | 8 | ” — so the “8” is in the second box, which is C4-C6.
So C4.
Unless the vertical bar is misplaced.
Wait — the layout is:
Each row has three sections separated by bars.
For example, Row 5: “3 9 | 8 | ” — so first box: C1-C3: 3,9,? → C3 is blank
Then second box: C4-C6: 8, ?, ? → so C4=8
Yes.
So R5C4=8
Similarly, R2C4=8
So conflict.
Perhaps the puzzle is intended to have R5C4 = 4 or something?
But as given, it's invalid.
Wait — let's check if any other columns have issues.
C5:
- R1C5 = 5
- R2C5 = 2
- R3C5 = 6
- R4C5 = 4
- R5C5 = ?
- R6C5 = 8
- R7C5 = 3
- R8C5 = 2 → R2C5=2, R8C5=2 → duplicate 2 in C5 → another issue!
Oh no! R2C5 = 2, R8C5 = 2 → same column → duplicate.
So C5 has two 2s.
Also, R2C5 = 2, R8C5 = 2 → invalid.
So multiple errors.
This suggests the puzzle may have been copied incorrectly.
But let's assume it's a typo and try to fix it.
Perhaps R8C5 is not 2? But in the image: “6 2 1” in row 8, C4-C6 → so C5=2.
Similarly, R2C5=2.
So duplicate.
Therefore, the puzzle as presented has several errors.
Given that, it's likely a printing error.
But since you asked to solve it, perhaps there's a mistake in my interpretation.
Wait — let's try to see if the 2 in R8C5 is actually in C4 or C6.
Row 8: “5 | 6 2 1 | 9 4 |” — wait, the text says: “5 | 6 2 1 | 9 4 |” — but the last part is “9 4” — so C7=9, C8=4, C9=?
But C4=6, C5=2, C6=1
So R8C5=2
R2C5=2 → same column → invalid.
So indeed, multiple duplicates.
Therefore, the puzzle is unsolvable as given.
But perhaps you can provide a corrected version, or confirm the numbers.
Alternatively, maybe I'm misreading the grid.
Wait — let's count the cells.
Perhaps the puzzle is meant to be solved as is, and I'm missing something.
But with duplicate 2s in C5 and duplicate 7s and 8s in C4, it's impossible.
Unless the puzzle is not standard Sudoku.
But it is.
Conclusion: The puzzle contains errors and cannot be solved as given.
However, if we assume that some numbers are wrong, we might guess the intended puzzle.
But without further information, I cannot proceed.
Please double-check the puzzle or provide a clearer image.
Alternatively, if you'd like, I can solve a corrected version.
For example, if R5C4 is not 8, but say 4, and R2C4 is not 8, etc., but that's speculation.
Given the current state, the puzzle has fatal errors.
So final answer: The puzzle contains duplicate numbers in column 4 (two 7s and two 8s) and column 5 (two 2s), making it unsolvable as given. Please verify the puzzle.
If you can provide a corrected version, I’d be happy to solve it.
We'll go through the puzzle logically, using elimination and deduction.
Here’s the initial grid:
```
+-------+-------+-------+
| 6 | 7 5 | 9 |
| 1 | 3 8 2 | 7 |
| | 6 | 5 |
+-------+-------+-------+
| | 8 | 4 3 | 5 |
| 3 9 | 8 | |
| | 1 | |
+-------+-------+-------+
| 9 6 | 8 7 1 2 |
| | 7 3 9 5 6 8 |
| 5 | 6 2 1 9 4 | |
+-------+-------+-------+
```
We’ll label rows from top to bottom as R1 to R9 and columns as C1 to C9.
---
Step 1: Look for easy placements
Let’s start with R1C1 (first row, first column). It's empty.
Check what numbers are missing in R1:
- R1 has: 6, 7, 5, 9 → missing: 1, 2, 3, 4, 8
- C1 has: 1, ?, ?, 3, ?, 9, ?, ?, 5 → values present: 1, 3, 5, 9 → missing: 2, 4, 6, 7, 8
- Box 1 (top-left 3x3): cells include R1C1, R1C2=6, R1C3=?, R2C1=1, R2C2=3, R2C3=8, R3C1=?, R3C2=?, R3C3=?
- Present: 1, 3, 6, 8 → missing: 2, 4, 5, 7, 9
So R1C1 must be one of: 2, 4, 8 (from R1), 2, 4, 6, 7, 8 (C1), and 2, 4, 5, 7, 9 (box) → common: 2, 4
Not yet clear. Let's look elsewhere.
---
Try solving R2C4
R2: [1, ?, 3, 8, 2, ?, 7, ?, ?]
Missing: 4, 5, 6, 9
C4: R1C4=7, R2C4=8, R3C4=6, R4C4=4, R5C4=8 → wait, R5C4=8 already?
Wait — let's list C4:
- R1C4 = 7
- R2C4 = 8
- R3C4 = 6
- R4C4 = 4
- R5C4 = ?
- R6C4 = 8 → Wait! R6C4 = 8? But R2C4 is also 8 → same column!
Wait — let's recheck the original image carefully.
Looking at the grid again:
Row 6: 9, 6, ?, 8, 7, 1, 2 → so R6C4 = 8
But R2C4 = 8 → both in C4 → conflict? No — wait, no, R2C4 is 8? Let's check:
Row 2: 1, ?, 3, 8, 2, ?, 7, ?, ?
Yes, R2C4 = 8
And R6C4 = 8 → both in column 4 → duplicate 8 → not allowed.
Wait — but that would make the puzzle invalid. Unless I misread.
Wait — no, let's double-check the original puzzle.
Looking at the image:
- Row 2: 1, ?, 3, 8, 2, ?, 7, ?, ?
- Row 6: 9, 6, ?, 8, 7, 1, 2 → yes, R6C4 = 8
So C4 has two 8s: R2C4 and R6C4 → impossible.
Wait — is there a typo?
Wait — perhaps I'm misreading the positions.
Let me reconstruct the grid carefully.
From the image:
```
Row 1: 6 | 7 5 | 9
Row 2: 1 | 3 8 2 | 7
Row 3: | 6 | 5
Row 4: | 8 | 4 3 | 5
Row 5: 3 9 | 8 |
Row 6: 9 6 | 8 7 1 2
Row 7: | 7 3 9 5 6 8
Row 8: 5 | 6 2 1 9 4 |
```
Now let's write it clearly with coordinates.
Let me create a full 9x9 grid.
```
Row 1: [ , 6, , , 7, 5, , , 9]
Row 2: [1, , 3, 8, 2, , 7, , ]
Row 3: [ , , , , 6, , 5, , ]
Row 4: [ , , 8, , 4, 3, , 5, ]
Row 5: [3, 9, , 8, , , , , ]
Row 6: [9, , 6, , 8, 7, 1, 2, ]
Row 7: [ , , , 7, 3, 9, 5, 6, 8]
Row 8: [5, , , 6, 2, 1, 9, 4, ]
Row 9: [ , , , , , , , , ]
```
Now let's fix C4:
- R1C4 = ?
- R2C4 = 8
- R3C4 = ?
- R4C4 = ?
- R5C4 = 8 → Wait, R5C4 = 8
- R6C4 = ?
- R7C4 = 7
- R8C4 = 6
- R9C4 = ?
Wait — R5C4 = 8? From Row 5: [3,9,?,8,...] → yes, R5C4 = 8
But R2C4 = 8 → both in C4 → duplicate 8 in column 4 → invalid.
Wait — unless I'm reading wrong.
Row 5: [3,9,?,8,?,?]
So R5C4 = 8
Row 2: [1,?,3,8,2,?,7,?,?] → R2C4 = 8
So both R2C4 and R5C4 = 8 → same column → invalid.
That can't be.
Unless... maybe the image has a typo?
Wait — let's look back at the image.
In Row 5: “3 9 | 8 | ” → so third box starts at C4, so R5C4 = 8
Row 2: “1 | 3 8 2 | 7 ” → second box: C4,C5,C6 → R2C4 = 8
So yes, both R2C4 and R5C4 = 8 → same column → conflict.
But that means the puzzle is invalid.
Wait — could it be that R5C4 is not 8?
Let me re-express the grid carefully.
Let’s number the boxes:
Box 1: R1-3, C1-3
Box 2: R1-3, C4-6
Box 3: R1-3, C7-9
Box 4: R4-6, C1-3
Box 5: R4-6, C4-6
Box 6: R4-6, C7-9
Box 7: R7-9, C1-3
Box 8: R7-9, C4-6
Box 9: R7-9, C7-9
Now, let’s extract each cell:
Row 1:
C1: blank
C2: 6
C3: blank
C4: 7
C5: 5
C6: blank
C7: blank
C8: blank
C9: 9
Row 2:
C1: 1
C2: blank
C3: 3
C4: 8
C5: 2
C6: blank
C7: 7
C8: blank
C9: blank
Row 3:
C1: blank
C2: blank
C3: blank
C4: blank
C5: 6
C6: blank
C7: 5
C8: blank
C9: blank
Row 4:
C1: blank
C2: blank
C3: 8
C4: blank
C5: 4
C6: 3
C7: blank
C8: 5
C9: blank
Row 5:
C1: 3
C2: 9
C3: blank
C4: 8
C5: blank
C6: blank
C7: blank
C8: blank
C9: blank
Row 6:
C1: 9
C2: blank
C3: 6
C4: blank
C5: 8
C6: 7
C7: 1
C8: 2
C9: blank
Row 7:
C1: blank
C2: blank
C3: blank
C4: 7
C5: 3
C6: 9
C7: 5
C8: 6
C9: 8
Row 8:
C1: 5
C2: blank
C3: blank
C4: 6
C5: 2
C6: 1
C7: 9
C8: 4
C9: blank
Row 9:
C1: blank
C2: blank
C3: blank
C4: blank
C5: blank
C6: blank
C7: blank
C8: blank
C9: blank
Now, check column 4:
- R1C4 = 7
- R2C4 = 8
- R3C4 = ?
- R4C4 = ?
- R5C4 = 8 ← oh! R5C4 = 8
- R6C4 = ?
- R7C4 = 7
- R8C4 = 6
- R9C4 = ?
So C4 has:
- R1C4 = 7
- R2C4 = 8
- R5C4 = 8 → same as R2C4 → duplicate 8 in column 4 → invalid!
This is a problem.
But wait — is R5C4 really 8?
Look at Row 5: “3 9 | 8 | ”
The middle box (C4-C6) has: R5C4 = 8, R5C5 = ?, R5C6 = ?
But R2C4 = 8 → same column → cannot have two 8s.
So either the puzzle has a typo or I'm misreading.
Wait — perhaps the 8 in R5C4 is not in C4?
No — in row 5, the third number is blank, then the next is 8 — so it's in C4.
But R2C4 is also 8.
So C4 has two 8s → invalid.
Alternatively, maybe the puzzle is correct and I made a mistake.
Wait — let's check if the puzzle might have been printed incorrectly.
Another possibility: maybe the 8 in row 5 is in C3?
But row 5: “3 9 | 8 | ” → the first three cells: C1=3, C2=9, C3=? → then C4=8
Yes.
Similarly, row 2: “1 | 3 8 2 | 7 ” → C1=1, C2=?, C3=3, C4=8, C5=2, C6=?, C7=7, C8=?, C9=?
So R2C4=8
So both R2C4 and R5C4 = 8 → same column → invalid.
Therefore, the puzzle as given has an error.
But wait — let's check if R5C4 is actually 8.
Perhaps it's not — maybe it's a different digit.
Wait — looking at the image again: in row 5, after "3 9", there's a blank, then "8" — so yes, it's in C4.
But perhaps the "8" is in C3?
No — the format is:
Row 5: 3 9 | 8 | → so the "8" is in the second box, which is C4-C6.
So C4.
So R5C4 = 8.
Same as R2C4.
So duplicate.
Thus, the puzzle is invalid.
But maybe I'm mistaken.
Wait — let's check R7C4 = 7, R8C4 = 6, R1C4 = 7 → so R1C4 and R7C4 both 7 → also duplicate in C4!
R1C4 = 7, R7C4 = 7 → same column → another duplicate!
So now we have:
- C4: R1C4 = 7, R2C4 = 8, R5C4 = 8, R7C4 = 7 → duplicates of 7 and 8 → invalid.
So the puzzle has multiple errors.
But that can’t be — perhaps I’m misreading the image.
Let me try to see the actual image more carefully.
Looking at the original:
Row 1: 6, ?, ?, 7, 5, ?, ?, 9
Row 2: 1, ?, 3, 8, 2, ?, 7, ?, ?
Row 3: ?, ?, ?, ?, 6, ?, 5, ?, ?
Row 4: ?, ?, 8, ?, 4, 3, ?, 5, ?
Row 5: 3, 9, ?, 8, ?, ?, ?, ?, ?
Row 6: 9, ?, 6, ?, 8, 7, 1, 2, ?
Row 7: ?, ?, ?, 7, 3, 9, 5, 6, 8
Row 8: 5, ?, ?, 6, 2, 1, 9, 4, ?
Row 9: ?, ?, ?, ?, ?, ?, ?, ?, ?
Now C4:
- R1C4 = 7
- R2C4 = 8
- R3C4 = ?
- R4C4 = ?
- R5C4 = 8
- R6C4 = ?
- R7C4 = 7
- R8C4 = 6
- R9C4 = ?
So:
- 7 appears twice (R1 and R7)
- 8 appears twice (R2 and R5)
So the puzzle has duplicate values in column 4 → unsolvable as is.
Therefore, likely there is a typo in the puzzle.
But perhaps the 8 in R5C4 is meant to be something else?
Or the 8 in R2C4?
Alternatively, maybe the 8 in R5C4 is in C3?
But the formatting shows: “3 9 | 8 | ” — so the “8” is in the second box, which is C4-C6.
So C4.
Unless the vertical bar is misplaced.
Wait — the layout is:
Each row has three sections separated by bars.
For example, Row 5: “3 9 | 8 | ” — so first box: C1-C3: 3,9,? → C3 is blank
Then second box: C4-C6: 8, ?, ? → so C4=8
Yes.
So R5C4=8
Similarly, R2C4=8
So conflict.
Perhaps the puzzle is intended to have R5C4 = 4 or something?
But as given, it's invalid.
Wait — let's check if any other columns have issues.
C5:
- R1C5 = 5
- R2C5 = 2
- R3C5 = 6
- R4C5 = 4
- R5C5 = ?
- R6C5 = 8
- R7C5 = 3
- R8C5 = 2 → R2C5=2, R8C5=2 → duplicate 2 in C5 → another issue!
Oh no! R2C5 = 2, R8C5 = 2 → same column → duplicate.
So C5 has two 2s.
Also, R2C5 = 2, R8C5 = 2 → invalid.
So multiple errors.
This suggests the puzzle may have been copied incorrectly.
But let's assume it's a typo and try to fix it.
Perhaps R8C5 is not 2? But in the image: “6 2 1” in row 8, C4-C6 → so C5=2.
Similarly, R2C5=2.
So duplicate.
Therefore, the puzzle as presented has several errors.
Given that, it's likely a printing error.
But since you asked to solve it, perhaps there's a mistake in my interpretation.
Wait — let's try to see if the 2 in R8C5 is actually in C4 or C6.
Row 8: “5 | 6 2 1 | 9 4 |” — wait, the text says: “5 | 6 2 1 | 9 4 |” — but the last part is “9 4” — so C7=9, C8=4, C9=?
But C4=6, C5=2, C6=1
So R8C5=2
R2C5=2 → same column → invalid.
So indeed, multiple duplicates.
Therefore, the puzzle is unsolvable as given.
But perhaps you can provide a corrected version, or confirm the numbers.
Alternatively, maybe I'm misreading the grid.
Wait — let's count the cells.
Perhaps the puzzle is meant to be solved as is, and I'm missing something.
But with duplicate 2s in C5 and duplicate 7s and 8s in C4, it's impossible.
Unless the puzzle is not standard Sudoku.
But it is.
Conclusion: The puzzle contains errors and cannot be solved as given.
However, if we assume that some numbers are wrong, we might guess the intended puzzle.
But without further information, I cannot proceed.
Please double-check the puzzle or provide a clearer image.
Alternatively, if you'd like, I can solve a corrected version.
For example, if R5C4 is not 8, but say 4, and R2C4 is not 8, etc., but that's speculation.
Given the current state, the puzzle has fatal errors.
So final answer: The puzzle contains duplicate numbers in column 4 (two 7s and two 8s) and column 5 (two 2s), making it unsolvable as given. Please verify the puzzle.
If you can provide a corrected version, I’d be happy to solve it.
Parent Tip: Review the logic above to help your child master the concept of easy printable sudoku for beginners.