LinkedIn Queens answer for Thursday, August 13: #835

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 row 2, so no other queen can go in row 2. The Red and Beige regions sit entirely in columns 4 and 5, so no other queen can go in those columns. The Green region sits entirely in column 6, so no other queen can go in column 6. The Beige and Pink regions sit entirely in rows 8 and 9, so no other queen can go in those rows. The Red and Yellow regions sit entirely in rows 6 and 7, so no other queen can go in those rows. The Purple, Blue and Gray regions sit entirely in columns 1, 2 and 3, so no other queen can go in those columns. A queen in row 1, column 2 would leave the Blue region with no open square, so that square is out. A queen in row 1, column 3 would leave the Blue region with no open square, so that square is out. A queen in row 2, column 2 would leave the Purple region with no open square, so that square is out. The Blue region has only one open square left, so its queen goes in row 2, column 3 (R2C3).
2. Step 2: Column 2 has only one open square left, so its queen goes in row 4 (Gray region) (R4C2).
3. Step 3: The Purple region has only one open square left, so its queen goes in row 1, column 1 (R1C1).
4. Step 4: The Green region has only one open square left, so its queen goes in row 3, column 6 (R3C6).
5. Step 5: A queen in row 6, column 8 would leave the Orange region with no open square, so that square is out. Row 6 has only one open square left, so its queen goes in column 5 (Red region) (R6C5).
6. Step 6: The Beige region has only one open square left, so its queen goes in row 9, column 4 (R9C4).
7. Step 7: A queen in row 7, column 8 would leave the Pink 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 7, column 9 (R7C9).
8. Step 8: The Pink region has only one open square left, so its queen goes in row 8, column 7 (R8C7).
9. Step 9: The Orange region has only one open square left, so its queen goes in row 5, column 8 (R5C8).

Answer coordinates: R1C1, R2C3, R3C6, R4C2, R5C8, R6C5, R7C9, R8C7, R9C4