LinkedIn Queens answer for Monday, July 20: #811

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 1, column 1 (R1C1).
2. Step 2: The Orange region sits entirely in row 2, so no other queen can go in row 2. The Green region sits entirely in row 3, so no other queen can go in row 3. The Yellow region sits entirely in row 4, so no other queen can go in row 4. The Red region sits entirely in row 5, so no other queen can go in row 5. A queen in row 3, column 5 would leave the Orange region with no open square, so that square is out. The Green and Pink regions sit entirely in columns 6 and 7, so no other queen can go in those columns. A queen in row 4, column 3 would leave the Red region with no open square, so that square is out. The Yellow region has only one open square left, so its queen goes in row 4, column 2 (R4C2).
3. Step 3: The Red region has only one open square left, so its queen goes in row 5, column 4 (R5C4).
4. Step 4: The Orange region has only one open square left, so its queen goes in row 2, column 5 (R2C5).
5. Step 5: The Blue region has only one open square left, so its queen goes in row 7, column 3 (R7C3).
6. Step 6: The Green region has only one open square left, so its queen goes in row 3, column 7 (R3C7).
7. Step 7: The Pink region has only one open square left, so its queen goes in row 6, column 6 (R6C6).

Answer coordinates: R1C1, R2C5, R3C7, R4C2, R5C4, R6C6, R7C3