LinkedIn Queens #877 answer — September 24, 2026

This Queens has exactly one solution, and you can reach it without guessing. Every step below follows from the rules. A “check” step shows why a queen can't go somewhere; it never asks you to gamble.

1. 1Where to lookShow hint

   The red region is a single cell, so its queen is set from the start. Look at row 1.
2. 2The first deductionShow hint

   The open cells of row 1 all belong to the purple region, so its queen sits in row 1 and its other cells are empty.

   Pattern

   A row trapped in one region. When every open cell of a row is the same color, that region's queen is in the row, so cross out the rest of the region.
3. 3The first queenShow hint

   Column 1 has one open cell left, in row 1, so its queen goes there.

   Steps 1–2 of the walkthrough rule out the cells marked ×.
4. 4Solve it step by stepShow hint

   Rows count from the top and columns from the left. Every queen rules out the rest of its row, its column and its color region, plus the eight cells around it.

   1. Last open cell. The red region has one open cell left (row 5, column 5), so its queen goes there.
   2. A row trapped in one region. The open cells of row 1 all belong to the purple region, so its queen sits in row 1 and its other cells are empty.
   3. Last open cell. Column 1 has one open cell left, in row 1, so its queen goes there.
   4. A row trapped in one region. The open cells of row 9 all belong to the pink region, so its queen sits in row 9 and its other cells are empty.
   5. A region trapped in one column. The gray region lies entirely in column 9, so the queen of column 9 belongs to it and every other cell of column 9 is empty.
   6. Pigeonhole: two regions in two columns. The beige and pink regions lie entirely within columns 7 and 8, so the queens of those columns belong to them and every other cell of columns 7 and 8 is empty.
   7. Last open cell. The green region has one open cell left (row 2, column 6), so its queen goes there.
   8. A region trapped in one column. The orange region lies entirely in column 2, so the queen of column 2 belongs to it and every other cell of column 2 is empty.
   9. A region trapped in one row. The yellow region lies entirely in row 8, so the queen of row 8 belongs to it and every other cell of row 8 is empty.
   10. Last open cell. Column 7 has one open cell left, in row 9, so its queen goes there.
   11. No-touching check. A queen at row 3 or 4, column 3 would leave the orange region with no open cell, so both cells stay empty.
   12. No-touching check. A queen at row 6, column 9 would leave the beige region with no open cell, so that cell stays empty.
   13. Last open cell. The gray region has one open cell left (row 4, column 9), so its queen goes there.
   14. Last open cell. The orange region has one open cell left (row 3, column 2), so its queen goes there.
   15. No-touching check. A queen at row 7, column 3 or 4 would leave the yellow region with no open cell, so both cells stay empty.
   16. Last open cell. The blue region has one open cell left (row 6, column 3), so its queen goes there.
   17. Last open cell. The yellow region has one open cell left (row 8, column 4), so its queen goes there.
   18. Last open cell. The beige region has one open cell left (row 7, column 8), so its queen goes there.
5. 5Queens #877 solutionShow answer

   Crowns in columns 1, 6, 2, 9, 5, 3, 8, 4, 7 (rows 1–9, top to bottom).