Place the digits 1 to 9 in every row, every column. Besides the grid includes 8 extra windows. 4 of them are surrounded with straight bold lines and the remaining 4 are surrounded with dashed bold lines and painted with grey. All these 8 windows must also contain each digit once.
Solution code: Column 5, followed by row 5
on 15. August 2021, 22:55 by zhergan
Tags revision..
on 25. January 2010, 09:38 by Rollo
Sehr schöne Fallstricke!
on 25. January 2010, 06:38 by sandmoppe
Da musste man sich erst einmal hineingucken. Hat auch mir als Nicht-Sudoku-Fan Spass gemacht.
on 24. January 2010, 14:22 by Mody
Hat mir gut gefallen :)
on 24. January 2010, 12:49 by Luigi
Schöne Variante zum Frühstück! Vielen Dank!
on 24. January 2010, 02:37 by Le Ahcim
tricky