LinkedIn Queens answer for Monday, October 19: #902

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 region has only one open square left, so its queen goes in row 2, column 4 (R2C4).
2. Step 2: The Orange region sits entirely in row 5, so no other queen can go in row 5. The Blue, Green and Yellow regions sit entirely in columns 5, 6 and 7, so no other queen can go in those columns. The Orange region has only one open square left, so its queen goes in row 5, column 3 (R5C3).
3. Step 3: The Red region has only one open square left, so its queen goes in row 7, column 2 (R7C2).
4. Step 4: The Green region has only one open square left, so its queen goes in row 6, column 7 (R6C7).
5. Step 5: Column 5 has only one open square left, so its queen goes in row 4 (Blue region) (R4C5).
6. Step 6: The Yellow region has only one open square left, so its queen goes in row 1, column 6 (R1C6).
7. Step 7: The Pink region has only one open square left, so its queen goes in row 3, column 1 (R3C1).

Answer coordinates: R1C6, R2C4, R3C1, R4C5, R5C3, R6C7, R7C2