Corner Successor sudoku
(Published on 30. September 2020, 12:14 by shachaf)
In addition to standard Sudoku rules: Each cell must have its successor at either its southeast or southwest corner (wrapping around the left/right and top/bottom edges of the grid). The successor of 9 is 1.
For example, if there's a 1 at r9c1, then there must be a 2 at either r1c2 or r1c9.
Links: F-puzzles, Sudoku Exchange
Solution code: Row 7 followed by column 4 (18 digits)
Solved by bernhard, karen_birgitta, Ours brun, shinkimancer, NjtehKourian, Lizzy01, washyleopard, Bropell, SudokuExplorer, ThrowngNinja, dBass, Debrutsid, vdwestdg, rimodech, dm_litv, skywalker, ArisK, Uhu, ... moss, philb, NikolaZ, grantmnz, geronimo92, Rollo, Kompetenzpartner, XhcnoirX, zorant, Thomster, saskia-daniela, Joo M.Y, Julianl, Raistlen, ParaNox, snowyegret, zrbakhtiar, jgarber, maskedtorah
