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Archive · Mini Sudoku #27

Mini Sudoku #27 (October 23, 2026): solution and step-by-step

The hard 6×6 from Friday, October 23, 2026. Play it first; the moves and the solved grid are folded below. Replays don't affect your streak.

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Mini Sudoku #27 was the hard 6×6 of Friday, October 23, 2026, with 11 clues given and 25 cells to fill. Our technique solver, the one behind the hint button, fills it in 26 steps using 24 naked singles, 1 hidden singles and 1 naked pairs, so 1 step need pencil marks (a pair, a pointing or claiming move) before the next digit can be placed. That profile gives it a difficulty score of 38 on our scale (easy below 25, medium below 34, hard below 45, expert above).

Mini Sudoku #27 in numbers

DifficultyHard (score 38)
Clues given11 of 36
Solver steps26
Naked singles24
Hidden singles1
Pairs, pointing and claiming1
X-wings0
Hint walk: digits placed / pencil-mark steps25 / 1
How to start Mini Sudoku #27: the first 12 moves

Each move is what the hint button would say at that point, from the empty grid. Rows and columns are counted from the top-left corner.

  1. 5 goes in row 3, column 1. Row 3, column 1 can only be 5: every other number already sits in its row, column or box.

  2. 1 goes in row 3, column 2. Row 3, column 2 can only be 1: every other number already sits in its row, column or box.

  3. 3 goes in row 3, column 6. Row 3, column 6 can only be 3: every other number already sits in its row, column or box.

  4. 2 goes in row 4, column 1. Row 4, column 1 can only be 2: every other number already sits in its row, column or box.

  5. 6 goes in row 4, column 4. Row 4, column 4 can only be 6: every other number already sits in its row, column or box.

  6. 1 goes in row 4, column 5. Row 4, column 5 can only be 1: every other number already sits in its row, column or box.

  7. 5 goes in row 4, column 6. Row 4, column 6 can only be 5: every other number already sits in its row, column or box.

  8. 4 goes in row 1, column 1. 4 has just one place left in column 1: every other empty cell there already sees a 4.

  9. Pencil marks. In row 5, these two cells can only hold 3 or 6. Between them they use both, so 3 and 6 come off the pencil marks everywhere else in row 5.

  10. 4 goes in row 5, column 4. Row 5, column 4 can only be 4: every other number already sits in its row, column or box.

  11. 3 goes in row 2, column 4. Row 2, column 4 can only be 3: every other number already sits in its row, column or box.

  12. 6 goes in row 1, column 5. Row 1, column 5 can only be 6: every other number already sits in its row, column or box.

14 more moves finish the grid.

Mini Sudoku #27 solution

Given clues in grey, filled digits in black.

Row by row: 4 5 3 1 6 2 · 1 6 2 3 5 4 · 5 1 6 2 4 3 · 2 3 4 6 1 5 · 6 2 5 4 3 1 · 3 4 1 5 2 6.

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