LinkedIn Queens answer for Friday, September 25: #878
LinkedIn Queens #878 is the puzzle for Friday, September 25, 2026: an 8x8 board with 8 color regions, and one queen to place in every row, column and region.
Updated 9:53 AM PT, Nov 7
Puzzle date Friday, September 25
The board
Purple4 squares
Orange37 squares
Blue6 squares
Green3 squares
Yellow3 squares
Red3 squares
Pink4 squares
Teal4 squares
Start with the Purple region. It sits entirely in column 1, so no other queen can go in column 1.
0 of 8 queens shown
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.
Step 1: The Purple region sits entirely in column 1, so no other queen can go in column 1. The Teal region sits entirely in row 8, so no other queen can go in row 8. The Red and Pink regions sit entirely in rows 5 and 6, so no other queen can go in those rows. The Purple, Blue, Green and Yellow regions sit entirely in rows 1, 2, 3 and 4, so no other queen can go in those rows. Column 2 has only one open square left, so its queen goes in row 7 (Orange region) (R7C2).
Step 2: Column 3 has only one open square left, so its queen goes in row 5 (Red region) (R5C3).
Step 3: Column 4 has only one open square left, so its queen goes in row 8 (Teal region) (R8C4).
Step 4: The Yellow region sits entirely in column 5, so no other queen can go in column 5. A queen in row 1, column 6 would leave the Green region with no open square, so that square is out. The Blue and Pink regions sit entirely in columns 7 and 8, so no other queen can go in those columns. A queen in row 3, column 5 would leave the Green 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 5 (R4C5).
Step 5: The Green region has only one open square left, so its queen goes in row 2, column 6 (R2C6).
Step 6: The Blue region has only one open square left, so its queen goes in row 1, column 8 (R1C8).
Step 7: The Purple region has only one open square left, so its queen goes in row 3, column 1 (R3C1).
Step 8: The Pink region has only one open square left, so its queen goes in row 6, column 7 (R6C7).
Put the queens on R1C8, R2C6, R3C1, R4C5, R5C3, R6C7, R7C2, R8C4. That is one queen in every row, every column and every one of the 8 color regions, and no two queens touch.
Which region do you start with in Queens #878?
Start with the Purple region. It sits entirely in column 1, so no other queen can go in column 1.
What are the coordinates of the queens in Queens #878?
R1C8, R2C6, R3C1, R4C5, R5C3, R6C7, R7C2, R8C4. In words: row 1 is column 8, row 2 is column 6, row 3 is column 1, row 4 is column 5, row 5 is column 3, row 6 is column 7, row 7 is column 2, row 8 is column 4.