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2026-10-12 · Medium · Daily Sudoku Solution
This replay starts from the original givens and explains both placements and candidate eliminations. It is separate from your saved game and does not count as completing the puzzle. Use Before and After to inspect the evidence for each move.
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This replay starts from the original givens and explains both placements and candidate eliminations. It is separate from your saved game and does not count as completing the puzzle. Use Before and After to inspect the evidence for each move.
Read this daily Sudoku solution in context
This walkthrough belongs to the date, difficulty and puzzle ID shown above. The original grid provides the starting conditions, and the technique summary reports this actual trace rather than a generic difficulty promise. The sample deduction below is taken from that verified trace.
Follow the replay without changing your save
The interactive replay lets you inspect every before and after state in order. It includes candidate eliminations as well as placements. Reading the replay is separate from playing: it does not enter numbers into your current board or increase completion statistics.
Original puzzle for this date
Techniques used in this puzzle
This is the 2026-10-12 Medium puzzle, ID sudoku-v1-medium-0504. Its 56 verified steps use the techniques below.
- Naked single: 47
- Hidden single: 7
- Locked candidates: 1
- Naked pair: 1
Reveal a deduction containing answers — open when you are ready
Inspect one actual deduction
Naked pair
Two cells (r6c7, r7c7) contain exactly the same two candidates (2, 5). Those digits occupy these two cells, so they can be removed from other cells in column 7.
Board overview
View the whole grid first. Zoom in to read candidates and their coordinates.
Purple cells give the evidence; a red cross marks a candidate this step can remove.
- Remove 5 from r1c7
- Remove 2 from r8c7
- Remove 5 from r8c7
- Remove 5 from r9c7
Board overview
View the whole grid first. Zoom in to read candidates and their coordinates.
2026-10-12 · Medium · sudoku-v1-medium-0504
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