Vixi

(Published today, 02:42 by UncleLogic)

VI / XI is a variant Sudoku featuring Anti-King, Anti-Knight, and a complete VI/XI constraint.

Sudoku:
Place the digits 1–9 in every row, column, and 3×3 box, with no repeats.

Anti-King:
Equal digits may not be a king's move apart.

Anti-Knight:
Equal digits may not be a knight's move apart.

VI / XI:
Orthogonally adjacent digits that sum to 6 are marked with VI.
Orthogonally adjacent digits that sum to 11 are marked with XI.
All possible VI and XI clues are given. Therefore, orthogonally adjacent cells without a VI or XI may not sum to 6 or 11.

Black Kropki:
Digits separated by a black dot are in a 1:2 ratio.
Not all possible black Kropki dots are necessarily given.

Play online:
Solve in SudokuPad

I hope you enjoy it!

More puzzles by me can be found at UncleLogic.com.

Solution code: Enter Row 4 from left to right, followed by Row 5 from left to right.

Solved by Hiyou167, fuxia, Fisherman, DarthV13, Testpilot Pirx, ysbg123, addie, lina_hyena, jalebc, thomamas, Gullie, rainingfish, damyan_rm, zonny, lars, Luaryo, midnightflyer76, JohnDoeJersey, anton_anton, ... farodin64, achim-t, jeroennos, brandon_bot, rcg, abw, Myreque, MengXu, JVA, Frankster, MarthaB, Csmith928, MetalPig, junwoo, Prepared Jester, flaemmchen, PinkNickels, besti, pms_headache, maglia

Full list