Queens Gamers

LinkedIn Queens #900 Answer & Hints – October 17, 2026

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

LinkedIn Queens hints and the full solution for puzzle #900 on October 17, 2026. Follow 20 verified deductions on this 9×9 board, starting with row 1 in region 1.

Unsolved Queens #900 · Small cell numbers identify regions. Rows run from top to bottom; columns from left to right. Dots are candidates, × marks excluded cells.

Region 1 (24 cells) · Region 2 (5 cells) · Region 3 (4 cells) · Region 4 (6 cells) · Region 5 (26 cells) · Region 6 (3 cells) · Region 7 (4 cells) · Region 8 (5 cells) · Region 9 (4 cells)

LinkedIn Queens #900 hints

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

Hint 1

Start with row 1. Its candidates are 9 cells (see details). Can you spot a shared row, column or region? Remember that each row, column and region needs exactly one Queen.

View 9 coordinate references

Start with row 1. Its candidates are R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9. 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):
9 cellsR1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9
Hint 2

Observe: row 1 has 9 remaining candidates: 9 cells (see details). All lie in region 1.

View 9 coordinate references

Observe: row 1 has 9 remaining candidates: R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9. All lie in region 1.

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

Therefore: mark 15 cells (see details) ×.

View 15 coordinate references

Therefore: mark R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, R4C7, R4C8, R4C9 ×.

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):
9 cellsR1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9
 Changed this step (square marker):
15 cellsR2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, R4C7, R4C8, R4C9
Hint 3

Step 1: Observe: row 1 has 9 remaining candidates: 9 cells (see details). All lie in region 1.

View 9 coordinate references

Step 1: Observe: row 1 has 9 remaining candidates: R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9. All lie in region 1.

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

Therefore: mark 15 cells (see details) ×.

View 15 coordinate references

Therefore: mark R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, R4C7, R4C8, R4C9 ×.

Step 2: Observe: row 2 has 3 remaining candidates: R2C1, R2C2, R2C3. All lie in region 2.

Rule: row 2 needs one Queen, so it will occupy region 2. region 2 can contain no second Queen outside row 2.

Therefore: mark R3C1, R3C2 ×.

Step 3: Observe: row 3 has only one remaining candidate: R3C3.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R3C3. The 12 cells marked × conflict with it by row, column, region or diagonal adjacency.

Board after step 3; earlier deductions are already applied.

Hint 3: 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):
1 cellsR3C3
 Changed this step (square marker):
13 cellsR1C3, R2C2, R2C3, R3C3, R4C1, R4C2, R4C3, R4C4, R5C3, R6C3, R7C3, R8C3, R9C3
Reveal answer

Queens #900 full solution

Full solution for LinkedIn Queens #900 · 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
R1C41
R2C12
R3C33
R4C64
R5C88
R6C56
R7C77
R8C95
R9C29
How to solve LinkedIn Queens #900

Step-by-step walkthrough

The key insight

The opening deduction: Observe: row 1 has 9 remaining candidates: 9 cells (see details). All lie in region 1.

View 9 coordinate references

The opening deduction: Observe: row 1 has 9 remaining candidates: R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9. All lie in region 1.

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

Therefore: mark 15 cells (see details) ×.

View 15 coordinate references

Therefore: mark R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, R4C7, R4C8, R4C9 ×.

Your solving route

  1. Steps 1–3: narrow the candidates until R3C3 is forced.
  2. Steps 4–20: 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: row 1 has 9 remaining candidates: 9 cells (see details). All lie in region 1.

View 9 coordinate references

Observe: row 1 has 9 remaining candidates: R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9. All lie in region 1.

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

Therefore: mark 15 cells (see details) ×.

View 15 coordinate references

Therefore: mark R2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, R4C7, R4C8, R4C9 ×.

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):
9 cellsR1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8, R1C9
 Changed this step (square marker):
15 cellsR2C4, R2C5, R2C6, R2C7, R2C8, R2C9, R3C4, R3C5, R3C6, R3C7, R3C8, R3C9, R4C7, R4C8, R4C9
Step 2 · Locked candidates

Observe: row 2 has 3 remaining candidates: R2C1, R2C2, R2C3. All lie in region 2.

Rule: row 2 needs one Queen, so it will occupy region 2. region 2 can contain no second Queen outside row 2.

Therefore: mark R3C1, R3C2 ×.

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):
3 cellsR2C1, R2C2, R2C3
 Changed this step (square marker):
2 cellsR3C1, R3C2
Step 3 · Only candidate

Observe: row 3 has only one remaining candidate: R3C3.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R3C3. The 12 cells marked × conflict with it by row, column, region or diagonal adjacency.

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):
1 cellsR3C3
 Changed this step (square marker):
13 cellsR1C3, R2C2, R2C3, R3C3, R4C1, R4C2, R4C3, R4C4, R5C3, R6C3, R7C3, R8C3, R9C3
Step 4 · Only candidate

Observe: row 2 has only one remaining candidate: R2C1.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R2C1. The 7 cells marked × conflict with it by row, column, region or diagonal adjacency.

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):
1 cellsR2C1
 Changed this step (square marker):
8 cellsR1C1, R1C2, R2C1, R5C1, R6C1, R7C1, R8C1, R9C1
Step 5 · Locked candidates

Observe: row 4 has 2 remaining candidates: R4C5, R4C6. All lie in region 4.

Rule: row 4 needs one Queen, so it will occupy region 4. region 4 can contain no second Queen outside row 4.

Therefore: mark R5C4, R5C6, R6C4 ×.

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):
2 cellsR4C5, R4C6
 Changed this step (square marker):
3 cellsR5C4, R5C6, R6C4
Step 6 · Common exclusions

Observe: row 4 must contain one Queen, chosen from R4C5, R4C6.

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

Therefore: mark R5C5 ×. Every possible Queen in row 4 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):
2 cellsR4C5, R4C6
 Changed this step (square marker):
1 cellsR5C5
Step 7 · Locked candidates

Observe: region 6 has 2 remaining candidates: R6C5, R6C6. All lie in row 6.

Rule: region 6 needs one Queen, so it will occupy row 6. row 6 can contain no second Queen outside region 6.

Therefore: mark R6C2, R6C7, R6C8, R6C9 ×.

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):
2 cellsR6C5, R6C6
 Changed this step (square marker):
4 cellsR6C2, R6C7, R6C8, R6C9
Step 8 · Locked candidates

Observe: region 7 has 2 remaining candidates: R5C7, R7C7. All lie in column 7.

Rule: region 7 needs one Queen, so it will occupy column 7. column 7 can contain no second Queen outside region 7.

Therefore: mark R1C7, R8C7, R9C7 ×.

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):
2 cellsR5C7, R7C7
 Changed this step (square marker):
3 cellsR1C7, R8C7, R9C7
Step 9 · Common exclusions

Observe: row 6 must contain one Queen, chosen from R6C5, R6C6.

Rule: Queens cannot share a row, column or region, or touch diagonally. R7C5 conflicts with R6C5 through the same column (column 5); with R6C6 through diagonally adjacent cells. R7C6 conflicts with R6C5 through diagonally adjacent cells; with R6C6 through the same column (column 6).

Therefore: mark R7C5, R7C6 ×. Every possible Queen in row 6 rules out these cells.

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):
2 cellsR6C5, R6C6
 Changed this step (square marker):
2 cellsR7C5, R7C6
Step 10 · Common exclusions

Observe: row 7 must contain one Queen, chosen from R7C2, R7C4, R7C7, R7C8, R7C9.

Rule: Queens cannot share a row, column or region, or touch diagonally. R8C8 conflicts with R7C2, R7C4 through the same region (region 5); with R7C7, R7C9 through diagonally adjacent cells; with R7C8 through the same column (column 8).

Therefore: mark R8C8 ×. Every possible Queen in row 7 rules out these cells.

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):
5 cellsR7C2, R7C4, R7C7, R7C8, R7C9
 Changed this step (square marker):
1 cellsR8C8
Step 11 · Common exclusions

Observe: row 8 must contain one Queen, chosen from R8C2, R8C4, R8C5, R8C6, R8C9.

Rule: Queens cannot share a row, column or region, or touch diagonally. R7C4 conflicts with 4 cells (see details) through the same region (region 5); with R8C4 through the same column (column 4). R9C4 conflicts with 4 cells (see details) through the same region (region 5); with R8C4 through the same column (column 4). R9C5 conflicts with R8C2, R8C6, R8C9 through the same region (region 5); with R8C4 through diagonally adjacent cells; with R8C5 through the same column (column 5).

View 18 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R7C4 conflicts with R8C2, R8C5, R8C6, R8C9 through the same region (region 5); with R8C4 through the same column (column 4). R9C4 conflicts with R8C2, R8C5, R8C6, R8C9 through the same region (region 5); with R8C4 through the same column (column 4). R9C5 conflicts with R8C2, R8C6, R8C9 through the same region (region 5); with R8C4 through diagonally adjacent cells; with R8C5 through the same column (column 5).

Therefore: mark R7C4, R9C4, R9C5 ×. Every possible Queen in row 8 rules out these cells.

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):
5 cellsR8C2, R8C4, R8C5, R8C6, R8C9
 Changed this step (square marker):
3 cellsR7C4, R9C4, R9C5
Step 12 · Common exclusions

Observe: row 9 must contain one Queen, chosen from R9C2, R9C6, R9C8, R9C9.

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C2 conflicts with R9C2 through the same column (column 2); with R9C6, R9C8, R9C9 through the same region (region 5). R7C2 conflicts with R9C2 through the same column (column 2); with R9C6, R9C8, R9C9 through the same region (region 5). R8C2 conflicts with R9C2 through the same column (column 2); with R9C6, R9C8, R9C9 through the same region (region 5).

View 15 coordinate references

Rule: Queens cannot share a row, column or region, or touch diagonally. R5C2 conflicts with R9C2 through the same column (column 2); with R9C6, R9C8, R9C9 through the same region (region 5). R7C2 conflicts with R9C2 through the same column (column 2); with R9C6, R9C8, R9C9 through the same region (region 5). R8C2 conflicts with R9C2 through the same column (column 2); with R9C6, R9C8, R9C9 through the same region (region 5).

Therefore: mark R5C2, R7C2, R8C2 ×. Every possible Queen in row 9 rules out these cells.

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):
4 cellsR9C2, R9C6, R9C8, R9C9
 Changed this step (square marker):
3 cellsR5C2, R7C2, R8C2
Step 13 · Only candidate

Observe: column 2 has only one remaining candidate: R9C2.

Rule: every column needs exactly one Queen.

Therefore: place a Queen at R9C2. The 4 cells marked × conflict with it by row, column, region or diagonal adjacency.

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):
1 cellsR9C2
 Changed this step (square marker):
5 cellsR8C4, R9C2, R9C6, R9C8, R9C9
Step 14 · Only candidate

Observe: column 4 has only one remaining candidate: R1C4.

Rule: every column needs exactly one Queen.

Therefore: place a Queen at R1C4. The 4 cells marked × conflict with it by row, column, region or diagonal adjacency.

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):
1 cellsR1C4
 Changed this step (square marker):
5 cellsR1C4, R1C5, R1C6, R1C8, R1C9
Step 15 · Locked candidates

Observe: column 8 has 2 remaining candidates: R5C8, R7C8. All lie in region 8.

Rule: column 8 needs one Queen, so it will occupy region 8. region 8 can contain no second Queen outside column 8.

Therefore: mark R5C9, R7C9 ×.

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):
2 cellsR5C8, R7C8
 Changed this step (square marker):
2 cellsR5C9, R7C9
Step 16 · Only candidate

Observe: column 9 has only one remaining candidate: R8C9.

Rule: every column needs exactly one Queen.

Therefore: place a Queen at R8C9. The 3 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 cellsR8C9
 Changed this step (square marker):
4 cellsR7C8, R8C5, R8C6, R8C9
Step 17 · Only candidate

Observe: row 7 has only one remaining candidate: R7C7.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R7C7. 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 cellsR7C7
 Changed this step (square marker):
3 cellsR5C7, R6C6, R7C7
Step 18 · Only candidate

Observe: row 5 has only one remaining candidate: R5C8.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R5C8. The 0 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 cellsR5C8
 Changed this step (square marker):
1 cellsR5C8
Step 19 · Only candidate

Observe: row 6 has only one remaining candidate: R6C5.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R6C5. The 1 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 cellsR6C5
 Changed this step (square marker):
2 cellsR4C5, R6C5
Step 20 · Only candidate

Observe: row 4 has only one remaining candidate: R4C6.

Rule: every row needs exactly one Queen.

Therefore: place a Queen at R4C6. 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 cellsR4C6
 Changed this step (square marker):
1 cellsR4C6

A tempting mistake

A Queen at R1C1 looks possible before deductions. Following the forced placements leaves row 3 without a possible Queen. Rule out this tempting assumption.

Check every branch

The only candidate in row 2 forces R2C3.

Row 3 has no possible Queen: contradiction.

Keep practicing