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Archive · Queens #30

Queens #30 (October 25, 2026): solution and step-by-step

The 11×11 Hard puzzle from Sunday, October 25, 2026. Play it first; the answer is folded below. Replays don't affect your streak.

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Queens #30 was the 11×11 hard board of Sunday, October 25, 2026. Our deduction solver, the same one behind the hint button, finishes it in 39 steps without guessing: 31 follow straight from the rules (a queen's neighbours, a line that already has its queen, a line with one free cell left), 6 come from confinement (a region squeezed into one row or column, or several regions sharing the same rows), and 2 need a “what if” check: imagine a queen in a cell and watch some row, column or region run out of room. The regions range from 3 to 21 cells; the smallest are gold, lavender and stone, and small regions are where the board opens up.

Queens #30 in numbers

Board11×11, Hard
Regions11, from 3 to 21 cells
Deduction steps39
Rule steps (neighbours, satisfied lines, last cell)31
Confinement steps6
“What if” contradictions2
Solver difficulty score26
How to start Queens #30: 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 8 cells. Every free cell of the gold region is in column 11, so that region's queen must be there — the rest of column 11 is crossed out.

  2. Queen at row 7, column 10. The orchid region has only one free cell left — that must be its queen.

  3. Cross out 5 cells. Queens can't touch, not even diagonally — the cells around this queen are crossed out.

  4. Cross out 8 cells. Row 7 already has its queen — the rest of it is crossed out.

  5. Cross out 8 cells. Column 10 already has its queen — the rest of it is crossed out.

  6. Cross out 6 cells. Every free cell of the stone region is in row 11, so that region's queen must be there — the rest of row 11 is crossed out.

  7. Queen at row 10, column 9. The teal region has only one free cell left — that must be its queen.

  8. Cross out 3 cells. Queens can't touch, not even diagonally — the cells around this queen are crossed out.

  9. Cross out 7 cells. Row 10 already has its queen — the rest of it is crossed out.

  10. Cross out 5 cells. Column 9 already has its queen — the rest of it is crossed out.

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

  12. Cross out 5 cells. The lavender region, the mint region and the lime region all fit inside columns 6, 7, 8, so those 3 columns' queens are theirs — every other cell in columns 6, 7, 8 is crossed out.

27 more steps follow the same pattern until the 11 queens are placed.

Queens #30 solution

Queens by row: row 1: column 1 (coral); row 2: column 3 (sky); row 3: column 6 (lavender); row 4: column 11 (gold); row 5: column 7 (mint); row 6: column 2 (rose); row 7: column 10 (orchid); row 8: column 8 (lime); row 9: column 4 (peach); row 10: column 9 (teal); row 11: column 5 (stone).

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

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