The Marriage of Figaro has been translated into dozens of languages: and now into a sudoku! Well, Act 1 Scene 1 at least.
Anti-knight sudoku rules apply. Digits in circles are the sum of the digits on the associated arrow. Digits cannot repeat within a cage.
Each cage represents one of Figaro's opening measurements: cinque (5), dieci (10), venti (20), trenta (30), trentasei (36), quarantatre (43).
The arrows represent the dance steps which Figaro intends to teach to the Count...
Solution code: Rows 6 and 7 (18 digits no spaces)