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Archive · Queens #25

Queens #25 (October 20, 2026): solution and step-by-step

The 8×8 Medium puzzle from Tuesday, October 20, 2026. Play it first; the answer is folded below. Replays don't affect your streak.

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Queens #25 was the 8×8 medium board of Tuesday, October 20, 2026. Our deduction solver, the same one behind the hint button, finishes it in 29 steps without guessing: 21 follow straight from the rules (a queen's neighbours, a line that already has its queen, a line with one free cell left), 8 come from confinement (a region squeezed into one row or column, or several regions sharing the same rows), and none need a “what if” check. The regions range from 2 to 14 cells; the smallest is lime, and small regions are where the board opens up.

Queens #25 in numbers

Board8×8, Medium
Regions8, from 2 to 14 cells
Deduction steps29
Rule steps (neighbours, satisfied lines, last cell)21
Confinement steps8
“What if” contradictions0
Solver difficulty score10
How to start Queens #25: the first 12 deductions

Each step is a deduction a person can make, in the order our solver found them. Rows and columns are counted from the top-left corner.

  1. Cross out 6 cells. Every free cell of the lime region is in row 8, so that region's queen must be there — the rest of row 8 is crossed out.

  2. Cross out 4 cells. Every free cell of the rose region is in row 7, so that region's queen must be there — the rest of row 7 is crossed out.

  3. Cross out row 7, column 2. This cell touches every free cell of row 8 — a queen here would leave row 8 with no queen, so it's crossed out.

  4. Cross out row 6, column 4. This cell touches every free cell of row 7 — a queen here would leave row 7 with no queen, so it's crossed out.

  5. Cross out row 7, column 3. This cell touches every free cell of row 8 — a queen here would leave row 8 with no queen, so it's crossed out.

  6. Cross out row 6, column 5. This cell touches every free cell of row 7 — a queen here would leave row 7 with no queen, so it's crossed out.

  7. Cross out row 5, column 7. This cell touches every free cell of the coral region — a queen here would leave the coral region with no queen, so it's crossed out.

  8. Cross out 6 cells. The coral region and the sky region all fit inside rows 5 and 6, so those 2 rows' queens are theirs — every other cell in rows 5 and 6 is crossed out.

  9. Queen at row 4, column 7. The orchid region has only one free cell left — that must be its queen.

  10. Cross out 6 cells. Queens can't touch, not even diagonally — the cells around this queen are crossed out.

  11. Cross out 5 cells. Row 4 already has its queen — the rest of it is crossed out.

  12. Cross out 3 cells. Column 7 already has its queen — the rest of it is crossed out.

17 more steps follow the same pattern until the 8 queens are placed.

Queens #25 solution

Queens by row: row 1: column 1 (gold); row 2: column 6 (lavender); row 3: column 4 (mint); row 4: column 7 (orchid); row 5: column 2 (sky); row 6: column 8 (coral); row 7: column 5 (rose); row 8: column 3 (lime).

Back to the Queens archive, today's puzzle, or the rules and deductions used above.

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