LinkedIn Queens answer for Wednesday, July 29: #820

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 Teal region sits entirely in row 8, so no other queen can go in row 8. The Purple region sits entirely in row 7, so no other queen can go in row 7. The Green region has only one open square left, so its queen goes in row 6, column 8 (R6C8).
2. Step 2: The Yellow region has only one open square left, so its queen goes in row 4, column 7 (R4C7).
3. Step 3: The Pink region has only one open square left, so its queen goes in row 5, column 3 (R5C3).
4. Step 4: The Orange and Red regions sit entirely in rows 2 and 3, so no other queen can go in those rows. A queen in row 1, column 5 would leave row 2 with no open square, so that square is out. A queen in row 2, column 4 would leave the Red 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 3, column 2 (R3C2).
5. Step 5: The Teal region has only one open square left, so its queen goes in row 8, column 1 (R8C1).
6. Step 6: Column 4 has only one open square left, so its queen goes in row 1 (Blue region) (R1C4).
7. Step 7: The Red region has only one open square left, so its queen goes in row 2, column 6 (R2C6).
8. Step 8: The Purple region has only one open square left, so its queen goes in row 7, column 5 (R7C5).

Answer coordinates: R1C4, R2C6, R3C2, R4C7, R5C3, R6C8, R7C5, R8C1