LinkedIn Queens #894 Answer & Hints – October 11, 2026

Independent walkthrough by Queens Gamers · · 9×9 · Play on LinkedIn

LinkedIn Queens hints and the full solution for puzzle #894 on October 11, 2026. Follow 20 verified deductions on this 9×9 board, starting with region 9 in row 9.

Unsolved Queens #894 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells.

Region 1 (20 cells) · Region 2 (9 cells) · Region 3 (8 cells) · Region 4 (6 cells) · Region 5 (7 cells) · Region 6 (6 cells) · Region 7 (8 cells) · Region 8 (15 cells) · Region 9 (2 cells)

LinkedIn Queens #894 hints

Open one hint at a time. Reveal the full answer only when you are ready.

Hint 1

Start with region 9. Its candidates are R9C2, R9C3. Can you spot a shared row, column or region? Remember that each row, column and region needs exactly one Queen.

Starting board: no deductions applied yet.

Hint 1: starting candidates · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR9C2, R9C3
Hint 2

Observe: region 9 has 2 remaining candidates: R9C2, R9C3. All lie in row 9.

Rule: region 9 needs one Queen, so it will occupy row 9. row 9 can contain no second Queen outside region 9.

Therefore: mark 7 cells (see details) ×.

View 7 coordinate references

Therefore: mark R9C1, R9C4, R9C5, R9C6, R9C7, R9C8, R9C9 ×.

Board after step 1; earlier deductions are already applied.

Hint 2: after step 1 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR9C2, R9C3
Changed this step (square marker):
7 cellsR9C1, R9C4, R9C5, R9C6, R9C7, R9C8, R9C9
Hint 3

Step 1: Observe: region 9 has 2 remaining candidates: R9C2, R9C3. All lie in row 9.

Rule: region 9 needs one Queen, so it will occupy row 9. row 9 can contain no second Queen outside region 9.

Therefore: mark 7 cells (see details) ×.

View 7 coordinate references

Therefore: mark R9C1, R9C4, R9C5, R9C6, R9C7, R9C8, R9C9 ×.

Step 2: Observe: row 9 must contain one Queen, chosen from R9C2, R9C3.

Rule: Queens cannot share a row, column or region, or touch diagonally. R8C2 conflicts with R9C2 through the same column (column 2); with R9C3 through diagonally adjacent cells. R8C3 conflicts with R9C2 through diagonally adjacent cells; with R9C3 through the same column (column 3).

Therefore: mark R8C2, R8C3 ×. Every possible Queen in row 9 rules out these cells.

Step 3: Observe: region 4 must contain one Queen, chosen from R4C3, R4C4, R5C3, R6C3, R6C4, R6C5.

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C4 conflicts with R4C3, R6C3, R6C5 through diagonally adjacent cells; with R4C4, R6C4 through the same column (column 4); with R5C3 through the same row (row 5).

View 7 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C4 conflicts with R4C3, R6C3, R6C5 through diagonally adjacent cells; with R4C4, R6C4 through the same column (column 4); with R5C3 through the same row (row 5).

Therefore: mark R5C4 ×. Every possible Queen in region 4 rules out these cells.

Step 4: Observe: region 5 must contain one Queen, chosen from R4C5, R4C6, R4C7, R5C5, R5C7, R6C7.

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C6 conflicts with R4C5, R4C7, R6C7 through diagonally adjacent cells; with R4C6 through the same column (column 6); with R5C5, R5C7 through the same row (row 5).

View 7 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C6 conflicts with R4C5, R4C7, R6C7 through diagonally adjacent cells; with R4C6 through the same column (column 6); with R5C5, R5C7 through the same row (row 5).

Therefore: mark R5C6 ×. Every possible Queen in region 5 rules out these cells.

Step 5: Observe: row 1 and row 2 and row 3 have remaining candidates 27 cells (see details), all within region 1 and region 2 and region 3.

View 27 coordinate references

Step 5: Observe: row 1 and row 2 and row 3 have remaining candidates R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9, R2C1, R2C2, R2C3, R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C1, R3C2, R3C3, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, all within region 1 and region 2 and region 3.

Rule: these 3 groups need distinct Queens, filling all 3 target groups.

Therefore: mark 10 cells (see details) ×. These cells lie outside the groups that reserve those Queens.

View 10 coordinate references

Therefore: mark R4C1, R4C2, R4C8, R4C9, R5C1, R5C2, R5C8, R5C9, R6C1, R7C1 ×. These cells lie outside the groups that reserve those Queens.

Step 6: Observe: region 3 must contain one Queen, chosen from R2C2, R2C3, R3C2.

Rule: Queens cannot share a row, column or region, or touch diagonally. R1C2 conflicts with R2C2, R3C2 through the same column (column 2); with R2C3 through diagonally adjacent cells. R2C1 conflicts with R2C2, R2C3 through the same row (row 2); with R3C2 through diagonally adjacent cells. R3C3 conflicts with R2C2 through diagonally adjacent cells; with R2C3 through the same column (column 3); with R3C2 through the same row (row 3).

View 12 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R1C2 conflicts with R2C2, R3C2 through the same column (column 2); with R2C3 through diagonally adjacent cells. R2C1 conflicts with R2C2, R2C3 through the same row (row 2); with R3C2 through diagonally adjacent cells. R3C3 conflicts with R2C2 through diagonally adjacent cells; with R2C3 through the same column (column 3); with R3C2 through the same row (row 3).

Therefore: mark R1C2, R2C1, R3C3 ×. Every possible Queen in region 3 rules out these cells.

Step 7: Observe: row 4 and row 5 have remaining candidates 8 cells (see details), all within region 4 and region 5.

View 8 coordinate references

Step 7: Observe: row 4 and row 5 have remaining candidates R4C3, R4C4, R4C5, R4C6, R4C7, R5C3, R5C5, R5C7, all within region 4 and region 5.

Rule: these 2 groups need distinct Queens, filling all 2 target groups.

Therefore: mark R6C3, R6C4, R6C5, R6C7 ×. These cells lie outside the groups that reserve those Queens.

Step 8: Observe: region 3 and region 4 and region 9 have remaining candidates 8 cells (see details), all within column 2 and column 3 and column 4.

View 8 coordinate references

Step 8: Observe: region 3 and region 4 and region 9 have remaining candidates R2C2, R2C3, R3C2, R4C3, R4C4, R5C3, R9C2, R9C3, all within column 2 and column 3 and column 4.

Rule: these 3 groups need distinct Queens, filling all 3 target groups.

Therefore: mark 9 cells (see details) ×. These cells lie outside the groups that reserve those Queens.

View 9 coordinate references

Therefore: mark R1C3, R1C4, R2C4, R3C4, R6C2, R7C2, R7C3, R7C4, R8C4 ×. These cells lie outside the groups that reserve those Queens.

Step 9: Observe: column 4 has only one remaining candidate: R4C4.

Rule: every column needs exactly one Queen.

Therefore: place a Queen at R4C4. The 7 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 9; earlier deductions are already applied.

Hint 3: after step 9 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR4C4
Changed this step (square marker):
8 cellsR3C5, R4C3, R4C4, R4C5, R4C6, R4C7, R5C3, R5C5
Reveal answer

Queens #894 full solution

Full solution for LinkedIn Queens #894 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Queens show the complete solution.
Queen coordinates (rows and columns start at 1)
RowColumnRegion
R1C62
R2C33
R3C11
R4C44
R5C75
R6C98
R7C57
R8C86
R9C29
How to solve LinkedIn Queens #894

Step-by-step walkthrough

The key insight

The opening deduction: Observe: region 9 has 2 remaining candidates: R9C2, R9C3. All lie in row 9.

Rule: region 9 needs one Queen, so it will occupy row 9. row 9 can contain no second Queen outside region 9.

Therefore: mark 7 cells (see details) ×.

View 7 coordinate references

Therefore: mark R9C1, R9C4, R9C5, R9C6, R9C7, R9C8, R9C9 ×.

Your solving route

  1. Steps 1–9: narrow the candidates until R4C4 is forced.
  2. Steps 10–20: use the confirmed Queens to eliminate conflicts, then repeat the deductions for the remaining regions.

Open each deduction to see the observation, rule and board changes.

Step 1 · Locked candidates

Observe: region 9 has 2 remaining candidates: R9C2, R9C3. All lie in row 9.

Rule: region 9 needs one Queen, so it will occupy row 9. row 9 can contain no second Queen outside region 9.

Therefore: mark 7 cells (see details) ×.

View 7 coordinate references

Therefore: mark R9C1, R9C4, R9C5, R9C6, R9C7, R9C8, R9C9 ×.

Board after step 1 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR9C2, R9C3
Changed this step (square marker):
7 cellsR9C1, R9C4, R9C5, R9C6, R9C7, R9C8, R9C9
Step 2 · Common exclusions

Observe: row 9 must contain one Queen, chosen from R9C2, R9C3.

Rule: Queens cannot share a row, column or region, or touch diagonally. R8C2 conflicts with R9C2 through the same column (column 2); with R9C3 through diagonally adjacent cells. R8C3 conflicts with R9C2 through diagonally adjacent cells; with R9C3 through the same column (column 3).

Therefore: mark R8C2, R8C3 ×. Every possible Queen in row 9 rules out these cells.

Board after step 2 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR9C2, R9C3
Changed this step (square marker):
2 cellsR8C2, R8C3
Step 3 · Common exclusions

Observe: region 4 must contain one Queen, chosen from R4C3, R4C4, R5C3, R6C3, R6C4, R6C5.

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C4 conflicts with R4C3, R6C3, R6C5 through diagonally adjacent cells; with R4C4, R6C4 through the same column (column 4); with R5C3 through the same row (row 5).

View 7 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C4 conflicts with R4C3, R6C3, R6C5 through diagonally adjacent cells; with R4C4, R6C4 through the same column (column 4); with R5C3 through the same row (row 5).

Therefore: mark R5C4 ×. Every possible Queen in region 4 rules out these cells.

Board after step 3 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
6 cellsR4C3, R4C4, R5C3, R6C3, R6C4, R6C5
Changed this step (square marker):
1 cellsR5C4
Step 4 · Common exclusions

Observe: region 5 must contain one Queen, chosen from R4C5, R4C6, R4C7, R5C5, R5C7, R6C7.

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C6 conflicts with R4C5, R4C7, R6C7 through diagonally adjacent cells; with R4C6 through the same column (column 6); with R5C5, R5C7 through the same row (row 5).

View 7 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C6 conflicts with R4C5, R4C7, R6C7 through diagonally adjacent cells; with R4C6 through the same column (column 6); with R5C5, R5C7 through the same row (row 5).

Therefore: mark R5C6 ×. Every possible Queen in region 5 rules out these cells.

Board after step 4 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
6 cellsR4C5, R4C6, R4C7, R5C5, R5C7, R6C7
Changed this step (square marker):
1 cellsR5C6
Step 5 · Reserved groups

Observe: row 1 and row 2 and row 3 have remaining candidates 27 cells (see details), all within region 1 and region 2 and region 3.

View 27 coordinate references

Observe: row 1 and row 2 and row 3 have remaining candidates R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9, R2C1, R2C2, R2C3, R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C1, R3C2, R3C3, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, all within region 1 and region 2 and region 3.

Rule: these 3 groups need distinct Queens, filling all 3 target groups.

Therefore: mark 10 cells (see details) ×. These cells lie outside the groups that reserve those Queens.

View 10 coordinate references

Therefore: mark R4C1, R4C2, R4C8, R4C9, R5C1, R5C2, R5C8, R5C9, R6C1, R7C1 ×. These cells lie outside the groups that reserve those Queens.

Board after step 5 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
27 cellsR1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9, R2C1, R2C2, R2C3, R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C1, R3C2, R3C3, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9
Changed this step (square marker):
10 cellsR4C1, R4C2, R4C8, R4C9, R5C1, R5C2, R5C8, R5C9, R6C1, R7C1
Step 6 · Common exclusions

Observe: region 3 must contain one Queen, chosen from R2C2, R2C3, R3C2.

Rule: Queens cannot share a row, column or region, or touch diagonally. R1C2 conflicts with R2C2, R3C2 through the same column (column 2); with R2C3 through diagonally adjacent cells. R2C1 conflicts with R2C2, R2C3 through the same row (row 2); with R3C2 through diagonally adjacent cells. R3C3 conflicts with R2C2 through diagonally adjacent cells; with R2C3 through the same column (column 3); with R3C2 through the same row (row 3).

View 12 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R1C2 conflicts with R2C2, R3C2 through the same column (column 2); with R2C3 through diagonally adjacent cells. R2C1 conflicts with R2C2, R2C3 through the same row (row 2); with R3C2 through diagonally adjacent cells. R3C3 conflicts with R2C2 through diagonally adjacent cells; with R2C3 through the same column (column 3); with R3C2 through the same row (row 3).

Therefore: mark R1C2, R2C1, R3C3 ×. Every possible Queen in region 3 rules out these cells.

Board after step 6 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
3 cellsR2C2, R2C3, R3C2
Changed this step (square marker):
3 cellsR1C2, R2C1, R3C3
Step 7 · Reserved groups

Observe: row 4 and row 5 have remaining candidates 8 cells (see details), all within region 4 and region 5.

View 8 coordinate references

Observe: row 4 and row 5 have remaining candidates R4C3, R4C4, R4C5, R4C6, R4C7, R5C3, R5C5, R5C7, all within region 4 and region 5.

Rule: these 2 groups need distinct Queens, filling all 2 target groups.

Therefore: mark R6C3, R6C4, R6C5, R6C7 ×. These cells lie outside the groups that reserve those Queens.

Board after step 7 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
8 cellsR4C3, R4C4, R4C5, R4C6, R4C7, R5C3, R5C5, R5C7
Changed this step (square marker):
4 cellsR6C3, R6C4, R6C5, R6C7
Step 8 · Reserved groups

Observe: region 3 and region 4 and region 9 have remaining candidates 8 cells (see details), all within column 2 and column 3 and column 4.

View 8 coordinate references

Observe: region 3 and region 4 and region 9 have remaining candidates R2C2, R2C3, R3C2, R4C3, R4C4, R5C3, R9C2, R9C3, all within column 2 and column 3 and column 4.

Rule: these 3 groups need distinct Queens, filling all 3 target groups.

Therefore: mark 9 cells (see details) ×. These cells lie outside the groups that reserve those Queens.

View 9 coordinate references

Therefore: mark R1C3, R1C4, R2C4, R3C4, R6C2, R7C2, R7C3, R7C4, R8C4 ×. These cells lie outside the groups that reserve those Queens.

Board after step 8 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
8 cellsR2C2, R2C3, R3C2, R4C3, R4C4, R5C3, R9C2, R9C3
Changed this step (square marker):
9 cellsR1C3, R1C4, R2C4, R3C4, R6C2, R7C2, R7C3, R7C4, R8C4
Step 9 · Only candidate

Observe: column 4 has only one remaining candidate: R4C4.

Rule: every column needs exactly one Queen.

Therefore: place a Queen at R4C4. The 7 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 9 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR4C4
Changed this step (square marker):
8 cellsR3C5, R4C3, R4C4, R4C5, R4C6, R4C7, R5C3, R5C5
Step 10 · Only candidate

Observe: row 5 has only one remaining candidate: R5C7.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R5C7. The 7 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 10 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR5C7
Changed this step (square marker):
8 cellsR1C7, R2C7, R3C7, R5C7, R6C6, R6C8, R7C7, R8C7
Step 11 · Only candidate

Observe: row 6 has only one remaining candidate: R6C9.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R6C9. The 7 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 11 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR6C9
Changed this step (square marker):
8 cellsR1C9, R2C9, R3C9, R6C9, R7C8, R7C9, R8C1, R8C9
Step 12 · Locked candidates

Observe: column 1 has 2 remaining candidates: R1C1, R3C1. All lie in region 1.

Rule: column 1 needs one Queen, so it will occupy region 1. region 1 can contain no second Queen outside column 1.

Therefore: mark R2C6, R2C8, R3C6, R3C8 ×.

Board after step 12 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR1C1, R3C1
Changed this step (square marker):
4 cellsR2C6, R2C8, R3C6, R3C8
Step 13 · Common exclusions

Observe: row 3 must contain one Queen, chosen from R3C1, R3C2.

Rule: Queens cannot share a row, column or region, or touch diagonally. R2C2 conflicts with R3C1 through diagonally adjacent cells; with R3C2 through the same column (column 2).

Therefore: mark R2C2 ×. Every possible Queen in row 3 rules out these cells.

Board after step 13 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR3C1, R3C2
Changed this step (square marker):
1 cellsR2C2
Step 14 · Common exclusions

Observe: row 7 must contain one Queen, chosen from R7C5, R7C6.

Rule: Queens cannot share a row, column or region, or touch diagonally. R8C5 conflicts with R7C5 through the same column (column 5); with R7C6 through diagonally adjacent cells. R8C6 conflicts with R7C5 through the same region (region 7); with R7C6 through the same column (column 6).

Therefore: mark R8C5, R8C6 ×. Every possible Queen in row 7 rules out these cells.

Board after step 14 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
2 cellsR7C5, R7C6
Changed this step (square marker):
2 cellsR8C5, R8C6
Step 15 · Only candidate

Observe: row 8 has only one remaining candidate: R8C8.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R8C8. The 2 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 15 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR8C8
Changed this step (square marker):
3 cellsR1C8, R7C6, R8C8
Step 16 · Only candidate

Observe: row 7 has only one remaining candidate: R7C5.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R7C5. The 2 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 16 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR7C5
Changed this step (square marker):
3 cellsR1C5, R2C5, R7C5
Step 17 · Only candidate

Observe: row 2 has only one remaining candidate: R2C3.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R2C3. The 2 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 17 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR2C3
Changed this step (square marker):
3 cellsR2C3, R3C2, R9C3
Step 18 · Only candidate

Observe: row 3 has only one remaining candidate: R3C1.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R3C1. The 1 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 18 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR3C1
Changed this step (square marker):
2 cellsR1C1, R3C1
Step 19 · Only candidate

Observe: row 1 has only one remaining candidate: R1C6.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R1C6. The 0 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 19 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells. Reasoning basis (round marker):
1 cellsR1C6
Changed this step (square marker):
1 cellsR1C6
Step 20 · Only candidate

Observe: row 9 has only one remaining candidate: R9C2.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R9C2. The 0 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 20 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Queens show the complete solution. Reasoning basis (round marker):
1 cellsR9C2
Changed this step (square marker):
1 cellsR9C2

A tempting mistake

A Queen at R1C1 looks possible before deductions. All 7 terminal branches run out of candidates in region 5, row 8, row 5, region 7. Rule out this tempting assumption.

Check every branch
  1. Try R3C2.

    The only candidate in region 9 forces R9C3.

    1. Try R2C5.

      1. Try R4C4.

        1. Try R5C6.

          Region 5 has no possible Queen: contradiction.

        2. Try R5C7.

          The only candidate in row 6 forces R6C9.

          The only candidate in row 7 forces R7C6.

          Row 8 has no possible Queen: contradiction.

      2. Try R6C4.

        1. Try R4C6.

          Row 5 has no possible Queen: contradiction.

        2. Try R4C7.

          Row 5 has no possible Queen: contradiction.

    2. Try R2C9.

      The only candidate in region 8 forces R6C8.

      The only candidate in region 4 forces R4C4.

      Region 5 has no possible Queen: contradiction.

  2. Try R3C9.

    The only candidate in row 2 forces R2C3.

    The only candidate in region 9 forces R9C2.

    1. Try R6C8.

      The only candidate in region 4 forces R4C4.

      Region 5 has no possible Queen: contradiction.

    2. Try R8C4.

      Region 7 has no possible Queen: contradiction.

Keep practicing