LinkedIn Queens answer for Saturday, July 18: #809

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 Orange and Pink regions sit entirely in columns 2 and 3, so no other queen can go in those columns. The Purple, Blue and Green regions sit entirely in rows 2, 3 and 4, so no other queen can go in those rows. The Orange, Yellow, Red and Pink regions sit entirely in rows 5, 6, 7 and 8, so no other queen can go in those rows. The Gray region sits entirely in row 9, so no other queen can go in row 9. Column 9 has only one open square left, so its queen goes in row 1 (Teal region) (R1C9).
2. Step 2: Column 1 has only one open square left, so its queen goes in row 9 (Gray region) (R9C1).
3. Step 3: The Pink region sits entirely in column 3, so no other queen can go in column 3. A queen in row 2, column 5 would leave the Blue region with no open square, so that square is out. The Purple region sits entirely in column 4, so no other queen can go in column 4. A queen in row 2, column 7 would leave row 3 with no open square, so that square is out. A queen in row 3, column 5 would leave the Purple region with no open square, so that square is out. The Blue region sits entirely in column 6, so no other queen can go in column 6. A queen in row 3, column 7 would leave the Blue region with no open square, so that square is out. The Green region sits entirely in column 8, so no other queen can go in column 8. The Orange, Yellow and Pink regions sit entirely in rows 6, 7 and 8, so no other queen can go in those rows. A queen in row 7, column 2 would leave the Pink region with no open square, so that square is out. The Orange region has only one open square left, so its queen goes in row 6, column 2 (R6C2).
4. Step 4: The Pink region has only one open square left, so its queen goes in row 8, column 3 (R8C3).
5. Step 5: The Yellow region has only one open square left, so its queen goes in row 7, column 7 (R7C7).
6. Step 6: The Red region has only one open square left, so its queen goes in row 5, column 5 (R5C5).
7. Step 7: The Purple region has only one open square left, so its queen goes in row 2, column 4 (R2C4).
8. Step 8: The Blue region has only one open square left, so its queen goes in row 3, column 6 (R3C6).
9. Step 9: The Green region has only one open square left, so its queen goes in row 4, column 8 (R4C8).

Answer coordinates: R1C9, R2C4, R3C6, R4C8, R5C5, R6C2, R7C7, R8C3, R9C1