Logic Masters Deutschland e.V.

Star-Crossed Sandwiches

(Published on 25. January 2024, 01:26 by DarthParadox)

Place the digits 0-9 once into each row, column, and region. Identical digits may not be separated by a knight's move. The digits 0 and 9 may not be orthogonally or diagonally adjacent to each other or themselves.

A clue outside the grid is either an X-Sums clue or a Sandwich clue, but not both. I.e. exactly one of the following is true:

  • The clue gives the sum of the digits between the 0 and 9 in the indicated row or column.
  • The clue gives the sum of the first X digits in that row or column, starting from the digit next to the clue, which is equal to X.
The ? may be any valid clue.

Online solver: SudokuPad

Solution code: Column 6 (ten digits, no spaces)


Solved by Fool on Hill, halakani, paranoid, marcmees, dtoto, samuel1997, fjam, mse326, SudokuHero, Elliott810, jinkela114514, sorryimLate, SKORP17, giladooshlon, mew_rocks, SirJefferE, madhupt, OGRussHood, jkuo7, Silverstep, QuiltyAsCharged, Uhu, PippoForte, Leilalu222, ManuH, Guaste, michaal94
Full list

Comments

on 25. June 2024, 19:58 by Silverstep
It's a "fair" antiknight coloring, insofar as antiknight colorings can be considered fair. I do not make the same claim about the antiknight starbattle, that stuff was vicious.

on 26. January 2024, 17:03 by marcmees
hard to unravel this very tight knot.

on 25. January 2024, 11:06 by Fool on Hill
This is an amazing puzzle using pretty much every trick in the book - I thoroughly enjoyed working it out.

Difficulty:5
Rating:92 %
Solved:27 times
Observed:7 times
ID:000GOQ

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