LinkedIn Queens answer for Friday, July 17: #808

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 region sits entirely in column 5, so no other queen can go in column 5. The Green region sits entirely in column 6, so no other queen can go in column 6. The Red region sits entirely in column 9, so no other queen can go in column 9. The Teal region sits entirely in row 7, so no other queen can go in row 7. The Gray region sits entirely in row 9, so no other queen can go in row 9. The Yellow, Pink, Teal and Gray regions sit entirely in columns 1, 2, 3 and 4, so no other queen can go in those columns. The Orange region sits entirely in column 7, so no other queen can go in column 7. A queen in row 2, column 5 would leave the Green region with no open square, so that square is out. A queen in row 1, column 7 would leave row 2 with no open square, so that square is out. A queen in row 2, column 6 would leave the Blue region with no open square, so that square is out. The Blue and Green regions sit entirely in rows 1 and 3, so no other queen can go in those rows. A queen in row 2, column 7 would leave the Green 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 4, column 7 (R4C7).
2. Step 2: The Green region has only one open square left, so its queen goes in row 1, column 6 (R1C6).
3. Step 3: The Blue region has only one open square left, so its queen goes in row 3, column 5 (R3C5).
4. Step 4: Row 2 has only one open square left, so its queen goes in column 8 (Purple region) (R2C8).
5. Step 5: A queen in row 6, column 3 would leave the Teal region with no open square, so that square is out. A queen in row 7, column 3 would leave the Pink region with no open square, so that square is out. The Teal region has only one open square left, so its queen goes in row 7, column 4 (R7C4).
6. Step 6: Column 3 has only one open square left, so its queen goes in row 9 (Gray region) (R9C3).
7. Step 7: The Pink region has only one open square left, so its queen goes in row 6, column 2 (R6C2).
8. Step 8: The Yellow region has only one open square left, so its queen goes in row 8, column 1 (R8C1).
9. Step 9: The Red region has only one open square left, so its queen goes in row 5, column 9 (R5C9).

Answer coordinates: R1C6, R2C8, R3C5, R4C7, R5C9, R6C2, R7C4, R8C1, R9C3