(Eingestellt am 14. April 2021, 21:25 Uhr von mandourin)
Standard Sudoku rules apply.
E in a circle means that all four surrounding cells contain even digits.
O in a circle means that all four surrounding cells contain odd digits.
An operation symbol in a circle means that the result of this operation on the digits of both diagonals produce the same result.
A number in a circle means that for both diagonals, there is an operation that yields this result (the operation need not be the same on both diagonals).
This is a small tweak on the usual Mathrax Sudoku variant.
Penpa link to solve online (with answer check)
Lösungscode: Row 5 then column 5 without separation (a string of 18 digits).
Gelöst von SKORP17, Johannes Quack, jchan18, Greg, Nusi, henrypijames, panthchesh, NikolaZ, ManuH, MavericksJD, saskia-daniela, zorant, rimodech, skywalker, ranhothchord, Julianl