LinkedIn Queens answer for Wednesday, October 7: #890

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 Blue and Green regions sit entirely in columns 1 and 2, so no other queen can go in those columns. The Purple region sits entirely in column 3, so no other queen can go in column 3. The Purple, Orange and Blue regions sit entirely in rows 1, 2 and 3, so no other queen can go in those rows. The Green and Pink regions sit entirely in rows 4 and 5, so no other queen can go in those rows. The Yellow and Teal regions sit entirely in rows 6 and 7, so no other queen can go in those rows. The Gray region has only one open square left, so its queen goes in row 8, column 7 (R8C7).
2. Step 2: The Teal region has only one open square left, so its queen goes in row 6, column 6 (R6C6).
3. Step 3: The Yellow region has only one open square left, so its queen goes in row 7, column 4 (R7C4).
4. Step 4: A queen in row 2, column 2 would leave the Purple region with no open square, so that square is out. Column 2 has only one open square left, so its queen goes in row 4 (Green region) (R4C2).
5. Step 5: The Blue region has only one open square left, so its queen goes in row 2, column 1 (R2C1).
6. Step 6: The Purple region has only one open square left, so its queen goes in row 1, column 3 (R1C3).
7. Step 7: The Pink region has only one open square left, so its queen goes in row 5, column 9 (R5C9).
8. Step 8: The Orange region has only one open square left, so its queen goes in row 3, column 8 (R3C8).
9. Step 9: The Red region has only one open square left, so its queen goes in row 9, column 5 (R9C5).

Answer coordinates: R1C3, R2C1, R3C8, R4C2, R5C9, R6C6, R7C4, R8C7, R9C5