LinkedIn Queens answer for Friday, August 14: #836

Queens solution, step by step

Each LinkedIn Queens step places one queen and closes its row, its column, its region and the squares touching it.

1. Step 1: The Purple, Blue, Red and Pink regions sit entirely in rows 3, 4, 5 and 6, so no other queen can go in those rows. The Orange region has only one open square left, so its queen goes in row 2, column 5 (R2C5).
2. Step 2: The Teal region sits entirely in row 1, so no other queen can go in row 1. The Green and Yellow regions sit entirely in rows 7 and 8, so no other queen can go in those rows. Column 1 has only one open square left, so its queen goes in row 9 (Gray region) (R9C1).
3. Step 3: Column 2 has only one open square left, so its queen goes in row 4 (Purple region) (R4C2).
4. Step 4: Row 3 has only one open square left, so its queen goes in column 7 (Pink region) (R3C7).
5. Step 5: Row 8 has only one open square left, so its queen goes in column 4 (Yellow region) (R8C4).
6. Step 6: The Red region has only one open square left, so its queen goes in row 6, column 6 (R6C6).
7. Step 7: The Green region has only one open square left, so its queen goes in row 7, column 8 (R7C8).
8. Step 8: The Blue region has only one open square left, so its queen goes in row 5, column 9 (R5C9).
9. Step 9: The Teal region has only one open square left, so its queen goes in row 1, column 3 (R1C3).

Answer coordinates: R1C3, R2C5, R3C7, R4C2, R5C9, R6C6, R7C8, R8C4, R9C1