LinkedIn Queens #774 Answer & Analysis

The puzzle begins with queens already shown at R1C8 and R2C2. Use them first: their adjacent squares are immediate no-queen cells, which clears a large part of the upper-left, upper-right, and second-row neighborhood.

The blue region in the upper-middle section narrows down quickly. After the starting eliminations, R3C6 is the only safe square that keeps the blue region valid and avoids touching the queens above.

With the upper-middle settled, the dark-green center region becomes the next forced placement. R4C4 is the clean fit: it satisfies the region rule, keeps row 4 open, and does not touch the queens already placed.

Now the red region on the left and the pink region nearby become forced. R5C1 is the only red-region square that still works, and R6C3 is the only pink-region square that fits after the center queens are placed.

The remaining regions finish in a left-to-right staircase: R7C5 in the tan region, R8C7 in the orange region, and R9C9 in the gray region. These three placements complete the board while preserving one queen per row, one per column, and one per color region.