Rules:
Sudoku: Place the digits 1-6 exactly once in each row, column and box.
X-Sums: Fill each circle with the sum of the first X digits from the direction of the circle, where X is the digit in the cell next to the circle. These sums may be one- or two-digit numbers.
No digit may appear more than once in circles (e.g. having both "12" and "20" in circles is not allowed; having "11" in a circle is not allowed.)
Solution code: row 2
today, 02:28 by Crusader175
Very cool!
yesterday, 23:44 by jwsinclair
Amazing puzzle :)
yesterday, 23:40 by KNT
miraculous
yesterday, 23:13 by Piatato
Cool indeed!
yesterday, 22:42 by zzw
Very cool, elegant setup with some pretty neat logic