Logic
Pick a puzzle, then play or review the solution
Solution walkthrough
Step through the answer
Reveal cells one at a time in hint order — naked singles and hidden singles — and watch the live grid fill. Givens stay locked throughout.
Write-up styleCase file
0 of 26 cells revealed
Grid
Live board
1
1
2
2
1
3
6
4
5
5
Cells
Cell-by-cell breakdown
- 1Cell 1 lockedRegion 3 — reveal to continue
- 2Digit hidden
- 3Digit hidden
- 4Digit hidden
- 5Digit hidden
- 6Digit hidden
- 7Digit hidden
- 8Digit hidden
- 9Digit hidden
- 10Digit hidden
- 11Digit hidden
- 12Digit hidden
- 13Digit hidden
- 14Digit hidden
- 15Digit hidden
- 16Digit hidden
- 17Digit hidden
- 18Digit hidden
- 19Digit hidden
- 20Digit hidden
- 21Digit hidden
- 22Digit hidden
- 23Digit hidden
- 24Digit hidden
- 25Digit hidden
- 26Digit hidden