Spring Sudoku puzzle for children, easy level, with floral border and fun spring theme.

Let’s solve this Spring Sudoku puzzle step by step. Remember, in Sudoku:

- Each row must have numbers 1 to 9 — no repeats.
- Each column must have numbers 1 to 9 — no repeats.
- Each 3x3 mini grid (there are 9 of them) must also have numbers 1 to 9 — no repeats.

We’ll go row by row and fill in the missing numbers using logic.

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Row 1:
4 3 1 | 5 7 _ | 9 6 8
Missing number: Only 2 is missing → Fill in 2 at position (1,6)

→ Row 1 becomes: 4 3 1 | 5 7 2 | 9 6 8

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Row 2:
_ 7 2 | _ 1 8 | _ 5 3
Missing numbers: 4, 6, 9
Look at columns:

- Column 1: Already has 4,8,7,3 → can’t be 4 or 8 or 7 or 3 → possible: 6 or 9? Wait, let’s check mini grids too.

Actually, better to look at Mini Grid 1 (top-left 3x3):

Mini Grid 1 (rows 1–3, cols 1–3):
Row1: 4 3 1
Row2: ? 7 2
Row3: 8 ? ?

So far in Mini Grid 1: 4,3,1,7,2,8 → missing: 5,6,9

But Row2 already has 7,2,1,8,5,3 → so for Row2, missing are 4,6,9 — but 5 is already in Row2? Wait no — Row2 is: _ 7 2 | _ 1 8 | _ 5 3 → so it has 7,2,1,8,5,3 → missing: 4,6,9

Now, in Mini Grid 1, we need to place 5,6,9 — but Row2 already has 5? No — 5 is in column 8, which is not in Mini Grid 1. So 5 is allowed in Mini Grid 1? But Row2 doesn’t have 5 yet? Wait — Row2 has “_ 7 2 | _ 1 8 | _ 5 3” — so yes, 5 is in column 8 — that’s fine.

Wait — actually, let’s list what’s in Row2: positions 2=7, 3=2, 5=1, 6=8, 8=5, 9=3 → so missing: 4,6,9 for positions 1,4,7.

Now check Column 1: has 4 (row1), 8 (row3), 7 (row5), 3 (row6), 6 (row7) → so column 1 has: 4,8,7,3,6 → missing: 1,2,5,9 — but Row2 needs 4,6,9 — 4 and 6 are already in column 1? 4 is in row1 col1, 6 is in row7 col1 → so column 1 cannot take 4 or 6 → so Row2 Col1 must be 9

→ Put 9 in Row2 Col1

Now Row2: 9 7 2 | _ 1 8 | _ 5 3 → missing: 4,6 for positions 4 and 7

Check Column 4: has 5 (row1), 4 (row3), 8 (row6), 7 (row7), 1 (row8), 6 (row9) → so column 4 has: 5,4,8,7,1,6 → missing: 2,3,9 — but Row2 needs 4 or 6 — both are already in column 4? 4 is in row3 col4, 6 is in row9 col4 → so neither 4 nor 6 can go in column 4? That’s a problem.

Wait — I think I made a mistake. Let me restart with a cleaner approach.

Let me write the full grid with blanks as underscores:

Row 1: 4 3 1 | 5 7 _ | 9 6 8 → missing: 2 → so (1,6)=2

Row 2: _ 7 2 | _ 1 8 | _ 5 3 → missing: 4,6,9

Row 3: 8 _ _ | 4 _ 6 | 1 7 _ → missing: 2,3,5,9

Row 4: _ _ _ | _ _ _ | _ _ 1 → missing: 2,3,4,5,6,7,8,9

Row 5: 7 5 6 | _ 4 _ | _ 3 9 → missing: 1,2,8

Row 6: 3 1 4 | 8 _ 9 | _ _ _ → missing: 2,5,6,7

Row 7: _ 6 _ | 7 _ 5 | 2 1 4 → missing: 3,8,9

Row 8: _ _ _ | 1 9 4 | 3 _ 6 → missing: 2,5,7,8

Row 9: _ _ _ | 6 2 3 | 5 9 7 → missing: 1,4,8

This is getting messy. Let’s use a standard Sudoku solving technique: look for rows/columns/boxes with few missing numbers.

Start with Row 1: only one missing → (1,6) = 2 ✔️

Now Row 9: _ _ _ | 6 2 3 | 5 9 7 → missing: 1,4,8

Look at Column 1: has 4(r1), 8(r3), 7(r5), 3(r6), 6(r7) → so values present: 3,4,6,7,8 → missing: 1,2,5,9

But Row9 Col1 must be from {1,4,8} ∩ {1,2,5,9} = {1} → so (9,1) = 1

Then Row9: 1 _ _ | 6 2 3 | 5 9 7 → missing: 4,8 for cols 2 and 3

Column 2: has 3(r1),7(r2),5(r5),1(r6),6(r7) → present: 1,3,5,6,7 → missing: 2,4,8,9

Row9 Col2 must be from {4,8} ∩ {2,4,8,9} = {4,8}

Column 3: has 1(r1),2(r2),6(r5),4(r6),2? wait r7 col3 is blank, r8 col3 blank, r9 col3 blank

List Column 3: r1=1, r2=2, r3=?, r4=?, r5=6, r6=4, r7=?, r8=?, r9=?

Present: 1,2,4,6 → missing: 3,5,7,8,9

Row9 Col3 must be from {4,8} but 4 is already in column 3 (r6) → so cannot be 4 → must be 8

→ (9,3) = 8

Then Row9 Col2 must be 4

→ Row9: 1 4 8 | 6 2 3 | 5 9 7 ✔️

Now update grid:

Row 1: 4 3 1 | 5 7 2 | 9 6 8
Row 2: _ 7 2 | _ 1 8 | _ 5 3
Row 3: 8 _ _ | 4 _ 6 | 1 7 _
Row 4: _ _ _ | _ _ _ | _ _ 1
Row 5: 7 5 6 | _ 4 _ | _ 3 9
Row 6: 3 1 4 | 8 _ 9 | _ _ _
Row 7: _ 6 _ | 7 _ 5 | 2 1 4
Row 8: _ _ _ | 1 9 4 | 3 _ 6
Row 9: 1 4 8 | 6 2 3 | 5 9 7

Now Row 5: 7 5 6 | _ 4 _ | _ 3 9 → missing: 1,2,8

Look at Column 4: r1=5, r3=4, r6=8, r7=7, r8=1, r9=6 → present: 1,4,5,6,7,8 → missing: 2,3,9

Row5 Col4 must be from {1,2,8} ∩ {2,3,9} = {2} → so (5,4)=2

Then Row5: 7 5 6 | 2 4 _ | _ 3 9 → missing: 1,8 for cols 6 and 7

Column 6: r1=2, r2=8, r3=6, r6=9, r7=5, r8=4, r9=3 → present: 2,3,4,5,6,8,9 → missing: 1,7

Row5 Col6 must be from {1,8} ∩ {1,7} = {1} → so (5,6)=1

Then Row5 Col7 must be 8

→ Row5: 7 5 6 | 2 4 1 | 8 3 9 ✔️

Update grid:

Row 1: 4 3 1 | 5 7 2 | 9 6 8
Row 2: _ 7 2 | _ 1 8 | _ 5 3
Row 3: 8 _ _ | 4 _ 6 | 1 7 _
Row 4: _ _ _ | _ _ _ | _ _ 1
Row 5: 7 5 6 | 2 4 1 | 8 3 9
Row 6: 3 1 4 | 8 _ 9 | _ _ _
Row 7: _ 6 _ | 7 _ 5 | 2 1 4
Row 8: _ _ _ | 1 9 4 | 3 _ 6
Row 9: 1 4 8 | 6 2 3 | 5 9 7

Now Row 6: 3 1 4 | 8 _ 9 | _ _ _ → missing: 2,5,6,7

Column 5: r1=7, r2=1, r3=?, r4=?, r5=4, r6=?, r7=?, r8=9, r9=2 → present: 1,2,4,7,9 → missing: 3,5,6,8

Row6 Col5 must be from {2,5,6,7} ∩ {3,5,6,8} = {5,6}

Also, Mini Grid 5 (center): rows 4-6, cols 4-6

Current Mini Grid 5:
Row4: _ _ _
Row5: 2 4 1
Row6: 8 _ 9

So far: 2,4,1,8,9 → missing: 3,5,6,7

Row6 Col5 is in this box → must be from {5,6} as above.

Look at Column 5 again: missing 3,5,6,8 — and Row6 Col5 ∈ {5,6}

Now look at Row 7: _ 6 _ | 7 _ 5 | 2 1 4 → missing: 3,8,9

Column 5 for Row7: must be from {3,8,9} ∩ {3,5,6,8} = {3,8}

Similarly, Row 3 Col5: Row3 is 8 _ _ | 4 _ 6 | 1 7 _ → missing: 2,3,5,9

Column 5: missing 3,5,6,8 → so Row3 Col5 ∈ {2,3,5,9} ∩ {3,5,6,8} = {3,5}

This is getting complex. Let’s try Row 8: _ _ _ | 1 9 4 | 3 _ 6 → missing: 2,5,7,8

Column 1: present: r1=4, r3=8, r5=7, r6=3, r7=?, r8=?, r9=1 → so far: 1,3,4,7,8 → missing: 2,5,6,9

Row8 Col1 must be from {2,5,7,8} ∩ {2,5,6,9} = {2,5}

Column 2: present: r1=3, r2=7, r5=5, r6=1, r7=6, r9=4 → so far: 1,3,4,5,6,7 → missing: 2,8,9

Row8 Col2 must be from {2,5,7,8} ∩ {2,8,9} = {2,8}

Column 3: present: r1=1, r2=2, r5=6, r6=4, r9=8 → so far: 1,2,4,6,8 → missing: 3,5,7,9

Row8 Col3 must be from {2,5,7,8} ∩ {3,5,7,9} = {5,7}

Now, Mini Grid 7 (bottom-left): rows 7-9, cols 1-3

Current:
Row7: _ 6 _
Row8: _ _ _
Row9: 1 4 8

So far: 1,4,6,8 → missing: 2,3,5,7,9

Row8 Col1 ∈ {2,5}, Col2 ∈ {2,8}, Col3 ∈ {5,7}

Suppose Row8 Col1 = 2, then Col2 could be 8, Col3 could be 5 or 7.

Check if 2 is available in column 1: yes, missing 2,5,6,9 — 2 is ok.

Try Row8 Col1 = 2

Then Row8: 2 _ _ | 1 9 4 | 3 _ 6 → missing: 5,7,8 for cols 2,3,8

Col2: must be from {5,7,8} ∩ {2,8,9} = {8} → so (8,2)=8

Then Row8: 2 8 _ | 1 9 4 | 3 _ 6 → missing: 5,7 for cols 3 and 8

Col3: must be from {5,7} ∩ {3,5,7,9} = {5,7} — both possible.

Col8: Row8 Col8 — column 8: r1=6, r2=5, r3=7, r5=3, r7=1, r9=9 → present: 1,3,5,6,7,9 → missing: 2,4,8

Row8 Col8 must be from {5,7} ∩ {2,4,8} = empty! Problem.

So Row8 Col1 cannot be 2.

Try Row8 Col1 = 5

Then Row8: 5 _ _ | 1 9 4 | 3 _ 6 → missing: 2,7,8 for cols 2,3,8

Col2: must be from {2,7,8} ∩ {2,8,9} = {2,8}

Col3: must be from {2,7,8} ∩ {3,5,7,9} = {7}

So (8,3)=7

Then Row8: 5 _ 7 | 1 9 4 | 3 _ 6 → missing: 2,8 for cols 2 and 8

Col2: {2,8} ∩ {2,8,9} = {2,8} — both possible.

Col8: must be from {2,8} ∩ {2,4,8} = {2,8} — both possible.

Now, Mini Grid 7: rows 7-9, cols 1-3

Row7: _ 6 _
Row8: 5 _ 7
Row9: 1 4 8

So far: 1,4,5,6,7,8 → missing: 2,3,9

Row7 Col1 and Col3 must be from {2,3,9}

Row7: _ 6 _ | 7 _ 5 | 2 1 4 → missing: 3,8,9 — but 8 is not in {2,3,9} for the box? Contradiction?

Row7 missing: 3,8,9 — but in Mini Grid 7, only 2,3,9 are missing — so 8 cannot be in Row7 Col1 or Col3 — but Row7 Col1 and Col3 are in Mini Grid 7, so they must be from {2,3,9}, but Row7 needs to place 3,8,9 — so 8 must be in Col5 or something.

Row7: positions: col1, col3, col5 are blank — col5 is not in Mini Grid 7.

So for Row7, the missing numbers 3,8,9 must be placed in col1, col3, col5.

But col1 and col3 are in Mini Grid 7, which can only take 2,3,9 — so 8 cannot go there — so 8 must be in col5.

So (7,5) = 8

Then Row7: _ 6 _ | 7 8 5 | 2 1 4 → missing: 3,9 for cols 1 and 3

And Mini Grid 7 missing: 2,3,9 — but 2 is not needed in Row7, so for col1 and col3, we have 3 and 9.

Now back to Row8: we have (8,1)=5, (8,3)=7, and missing 2,8 for col2 and col8.

Col2: must be 2 or 8.

If we put 2 in (8,2), then (8,8)=8

Or vice versa.

Check Column 2: present: r1=3, r2=7, r5=5, r6=1, r7=6, r9=4, and now r8=2 or 8

If r8=2, then column 2 has 1,2,3,4,5,6,7 — missing 8,9

If r8=8, then has 1,3,4,5,6,7,8 — missing 2,9

Both possible for now.

Look at Row 2: _ 7 2 | _ 1 8 | _ 5 3 → missing: 4,6,9

Col1: present: r1=4, r3=8, r5=7, r6=3, r8=5, r9=1 → so far: 1,3,4,5,7,8 → missing: 2,6,9

Row2 Col1 must be from {4,6,9} ∩ {2,6,9} = {6,9}

Col4: present: r1=5, r3=4, r5=2, r6=8, r7=7, r8=1, r9=6 → so far: 1,2,4,5,6,7,8 → missing: 3,9

Row2 Col4 must be from {4,6,9} ∩ {3,9} = {9}

So (2,4) = 9

Then Row2: _ 7 2 | 9 1 8 | _ 5 3 → missing: 4,6 for cols 1 and 7

Col1: must be from {4,6} ∩ {2,6,9} = {6} → so (2,1)=6

Then (2,7)=4

→ Row2: 6 7 2 | 9 1 8 | 4 5 3 ✔️

Update grid:

Row 1: 4 3 1 | 5 7 2 | 9 6 8
Row 2: 6 7 2 | 9 1 8 | 4 5 3
Row 3: 8 _ _ | 4 _ 6 | 1 7 _
Row 4: _ _ _ | _ _ _ | _ _ 1
Row 5: 7 5 6 | 2 4 1 | 8 3 9
Row 6: 3 1 4 | 8 _ 9 | _ _ _
Row 7: _ 6 _ | 7 8 5 | 2 1 4 [we set (7,5)=8]
Row 8: 5 _ 7 | 1 9 4 | 3 _ 6 [we have (8,1)=5, (8,3)=7]
Row 9: 1 4 8 | 6 2 3 | 5 9 7

Now Row 3: 8 _ _ | 4 _ 6 | 1 7 _ → missing: 2,3,5,9

Col2: present: r1=3, r2=7, r5=5, r6=1, r7=6, r8=?, r9=4 → so far: 1,3,4,5,6,7 — missing: 2,8,9

Row3 Col2 must be from {2,3,5,9} ∩ {2,8,9} = {2,9}

Col3: present: r1=1, r2=2, r5=6, r6=4, r8=7, r9=8 → so far: 1,2,4,6,7,8 — missing: 3,5,9

Row3 Col3 must be from {2,3,5,9} ∩ {3,5,9} = {3,5,9}

Col5: present: r1=7, r2=1, r5=4, r7=8, r8=9, r9=2 → so far: 1,2,4,7,8,9 — missing: 3,5,6

Row3 Col5 must be from {2,3,5,9} ∩ {3,5,6} = {3,5}

Col9: present: r1=8, r2=3, r5=9, r7=4, r8=6, r9=7 → so far: 3,4,6,7,8,9 — missing: 1,2,5

Row3 Col9 must be from {2,3,5,9} ∩ {1,2,5} = {2,5}

Now, Mini Grid 1 (top-left): rows 1-3, cols 1-3

Row1: 4 3 1
Row2: 6 7 2
Row3: 8 _ _

So far: 1,2,3,4,6,7,8 — missing: 5,9

So Row3 Col2 and Col3 must be 5 and 9 in some order.

From above, Row3 Col2 ∈ {2,9}, but 2 is not in {5,9} — contradiction? No, because Mini Grid 1 requires 5 and 9, so Row3 Col2 and Col3 must be 5 and 9.

But earlier I said Row3 Col2 ∈ {2,9} — but 2 is not available in the box, so it must be 9.

Similarly, Row3 Col3 must be 5.

Because if Col2 is 9, Col3 is 5.

Check: Col2: if (3,2)=9, is it allowed? Column 2 missing 2,8,9 — yes, 9 is ok.

Col3: if (3,3)=5, column 3 missing 3,5,9 — yes, 5 is ok.

So (3,2)=9, (3,3)=5

Then Row3: 8 9 5 | 4 _ 6 | 1 7 _ → missing: 2,3 for cols 5 and 9

Col5: must be from {2,3} ∩ {3,5,6} = {3} → so (3,5)=3

Then (3,9)=2

→ Row3: 8 9 5 | 4 3 6 | 1 7 2 ✔️

Update grid:

Row 1: 4 3 1 | 5 7 2 | 9 6 8
Row 2: 6 7 2 | 9 1 8 | 4 5 3
Row 3: 8 9 5 | 4 3 6 | 1 7 2
Row 4: _ _ _ | _ _ _ | _ _ 1
Row 5: 7 5 6 | 2 4 1 | 8 3 9
Row 6: 3 1 4 | 8 _ 9 | _ _ _
Row 7: _ 6 _ | 7 8 5 | 2 1 4
Row 8: 5 _ 7 | 1 9 4 | 3 _ 6
Row 9: 1 4 8 | 6 2 3 | 5 9 7

Now Row 6: 3 1 4 | 8 _ 9 | _ _ _ → missing: 2,5,6,7

Col5: present: r1=7, r2=1, r3=3, r5=4, r7=8, r8=9, r9=2 → so far: 1,2,3,4,7,8,9 — missing: 5,6

Row6 Col5 must be from {2,5,6,7} ∩ {5,6} = {5,6}

Mini Grid 5 (center): rows 4-6, cols 4-6

Row4: _ _ _
Row5: 2 4 1
Row6: 8 _ 9

So far: 1,2,4,8,9 — missing: 3,5,6,7

Row6 Col5 is in this box, must be 5 or 6.

Also, Row6 Col7,8,9 are blank.

Col7: present: r1=9, r2=4, r3=1, r5=8, r7=2, r8=3, r9=5 → so far: 1,2,3,4,5,8,9 — missing: 6,7

Row6 Col7 must be from {2,5,6,7} ∩ {6,7} = {6,7}

Similarly, Col8: present: r1=6, r2=5, r3=7, r5=3, r7=1, r8=?, r9=9 → so far: 1,3,5,6,7,9 — missing: 2,4,8

Row6 Col8 must be from {2,5,6,7} ∩ {2,4,8} = {2}

So (6,8)=2

Then Row6: 3 1 4 | 8 _ 9 | _ 2 _ → missing: 5,6,7 for cols 5,7,9

Col9: present: r1=8, r2=3, r3=2, r5=9, r7=4, r8=6, r9=7 → so far: 2,3,4,6,7,8,9 — missing: 1,5

Row6 Col9 must be from {5,6,7} ∩ {1,5} = {5} → so (6,9)=5

Then Row6: 3 1 4 | 8 _ 9 | _ 2 5 → missing: 6,7 for cols 5 and 7

Col5: must be from {6,7} ∩ {5,6} = {6} → so (6,5)=6

Then (6,7)=7

→ Row6: 3 1 4 | 8 6 9 | 7 2 5 ✔️

Update grid:

Row 1: 4 3 1 | 5 7 2 | 9 6 8
Row 2: 6 7 2 | 9 1 8 | 4 5 3
Row 3: 8 9 5 | 4 3 6 | 1 7 2
Row 4: _ _ _ | _ _ _ | _ _ 1
Row 5: 7 5 6 | 2 4 1 | 8 3 9
Row 6: 3 1 4 | 8 6 9 | 7 2 5
Row 7: _ 6 _ | 7 8 5 | 2 1 4
Row 8: 5 _ 7 | 1 9 4 | 3 _ 6
Row 9: 1 4 8 | 6 2 3 | 5 9 7

Now Row 7: _ 6 _ | 7 8 5 | 2 1 4 → missing: 3,9 for cols 1 and 3

Col1: present: r1=4, r2=6, r3=8, r5=7, r6=3, r8=5, r9=1 → so far: 1,3,4,5,6,7,8 — missing: 2,9

Row7 Col1 must be from {3,9} ∩ {2,9} = {9} → so (7,1)=9

Then (7,3)=3

→ Row7: 9 6 3 | 7 8 5 | 2 1 4 ✔️

Row 8: 5 _ 7 | 1 9 4 | 3 _ 6 → missing: 2,8 for cols 2 and 8

Col2: present: r1=3, r2=7, r3=9, r5=5, r6=1, r7=6, r9=4 → so far: 1,3,4,5,6,7,9 — missing: 2,8

Row8 Col2 must be from {2,8} ∩ {2,8} = {2,8} — both possible.

Col8: present: r1=6, r2=5, r3=7, r5=3, r6=2, r7=1, r9=9 → so far: 1,2,3,5,6,7,9 — missing: 4,8

Row8 Col8 must be from {2,8} ∩ {4,8} = {8} → so (8,8)=8

Then (8,2)=2

→ Row8: 5 2 7 | 1 9 4 | 3 8 6 ✔️

Now only Row 4 left: _ _ _ | _ _ _ | _ _ 1

Missing all except last cell is 1.

Col1: present: r1=4, r2=6, r3=8, r5=7, r6=3, r7=9, r8=5, r9=1 → so far: 1,3,4,5,6,7,8,9 — missing: 2

So (4,1)=2

Col2: present: r1=3, r2=7, r3=9, r5=5, r6=1, r7=6, r8=2, r9=4 → so far: 1,2,3,4,5,6,7,9 — missing: 8

So (4,2)=8

Col3: present: r1=1, r2=2, r3=5, r5=6, r6=4, r7=3, r8=7, r9=8 → so far: 1,2,3,4,5,6,7,8 — missing: 9

So (4,3)=9

Col4: present: r1=5, r2=9, r3=4, r5=2, r6=8, r7=7, r8=1, r9=6 → so far: 1,2,4,5,6,7,8,9 — missing: 3

So (4,4)=3

Col5: present: r1=7, r2=1, r3=3, r5=4, r6=6, r7=8, r8=9, r9=2 → so far: 1,2,3,4,6,7,8,9 — missing: 5

So (4,5)=5

Col6: present: r1=2, r2=8, r3=6, r5=1, r6=9, r7=5, r8=4, r9=3 → so far: 1,2,3,4,5,6,8,9 — missing: 7

So (4,6)=7

Col7: present: r1=9, r2=4, r3=1, r5=8, r6=7, r7=2, r8=3, r9=5 → so far: 1,2,3,4,5,7,8,9 — missing: 6

So (4,7)=6

Col8: present: r1=6, r2=5, r3=7, r5=3, r6=2, r7=1, r8=8, r9=9 → so far: 1,2,3,5,6,7,8,9 — missing: 4

So (4,8)=4

Col9: already given as 1

→ Row4: 2 8 9 | 3 5 7 | 6 4 1 ✔️

Now the entire grid is filled!

Let me write the complete solution:

Row 1: 4 3 1 | 5 7 2 | 9 6 8
Row 2: 6 7 2 | 9 1 8 | 4 5 3
Row 3: 8 9 5 | 4 3 6 | 1 7 2
Row 4: 2 8 9 | 3 5 7 | 6 4 1
Row 5: 7 5 6 | 2 4 1 | 8 3 9
Row 6: 3 1 4 | 8 6 9 | 7 2 5
Row 7: 9 6 3 | 7 8 5 | 2 1 4
Row 8: 5 2 7 | 1 9 4 | 3 8 6
Row 9: 1 4 8 | 6 2 3 | 5 9 7

Double-check a few things:

- Row 4: 2,8,9,3,5,7,6,4,1 — all unique ✔️
- Column 1: 4,6,8,2,7,3,9,5,1 — all unique ✔️
- Mini Grid 4 (middle-left): rows 4-6, cols 1-3:
Row4: 2,8,9
Row5: 7,5,6
Row6: 3,1,4 → numbers: 1,2,3,4,5,6,7,8,9 ✔️

Everything checks out.

Final Answer:
4 3 1 5 7 2 9 6 8
6 7 2 9 1 8 4 5 3
8 9 5 4 3 6 1 7 2
2 8 9 3 5 7 6 4 1
7 5 6 2 4 1 8 3 9
3 1 4 8 6 9 7 2 5
9 6 3 7 8 5 2 1 4
5 2 7 1 9 4 3 8 6
1 4 8 6 2 3 5 9 7