• Place the digits 1 to 9 in every 3x3 region without repeats in any row or column. Cells on region borders (dashed lines) are shared between multiple regions.
• A gold cell contains its position within its row, column or any of its regions. Position is read from left to right, top to bottom. All possible gold cells are given.
Solution code: row one
on 26. May 2026, 21:23 by AlfSmith
Rows and columns counted as 1,2,3,4,5,6,7.
on 20. May 2026, 19:35 by kkli
Please clarify if you count the rows and columns as 1,2,(3,4),5,(6,7),8,9 or 1,2,3,4,5,6,7, thanks.
on 20. May 2026, 19:11 by kkli
Please clarify if you count the rows and columns as 1,2,(3,4),5,(6,7),8,9 or 1,2,3,4,5,6,7, thanks.
on 16. May 2026, 23:00 by nunc
Great puzzle, great flow! Thank you.
on 27. April 2026, 14:50 by Franjo
Trickier than expected. Thank you very much for creating and sharing this lovely puzzle.