Logic Masters Deutschland e.V.

Anti-Arrow

(Eingestellt am 12. Oktober 2022, 06:28 Uhr von Eclectic_Hoosier)

Puzzle Name: Anti-Arrow
Puzzle Type: Anti-Arrow
Puzzle Link: F-Puzzles
CTC Software Link



Rules:
  1. Classic: Normal Sudoku rules apply.
  2. Arrow: Digits along an arrow branch sum to the number in the arrow's circle.
    • Arrows may not overlap or share cells. They may cross, as long as they do not share any cells. The circle is considered to be part of the arrow.
    • Any arrow that is completely or partially outside of the shaded regions must extend in a straight line from the circle, and may not bend. There is no such restriction on arrows contained entirely inside the shaded regions.
    • An arrow’s circle may have more than one arrow branch attached to it. Each branch separately sums to the number in the circle. If a circled sum is possible under these rules, then there must be a branch from the circle.
    • All possible arrows are given.

Lösungscode: Row 6, left to right

Zuletzt geändert am 30. September 2023, 19:20 Uhr

Gelöst von StefanSch, JayForty, amberdot, Bremster, Chilly, virtual, Crusader175, wisty, davidagg, FullDeck-Missing, peacherwu2, polar, Myxo, fjam, XeonRisq
Komplette Liste

Kommentare

am 28. Juni 2023, 02:14 Uhr von Myxo
Absolutely wonderful! Loved it from beginning to end.

Zuletzt geändert am 6. Februar 2023, 13:44 Uhr

am 31. Januar 2023, 06:39 Uhr von polar
'Arrows may not overlap or share cells... All possible arrows are given.'

A strict reading of these rules combined would imply that an arrow such as 6-312 or 8-413 is not allowed, and yet I'm quite sure this puzzle is not solvable assuming such a restriction. Can you please clarify what is / isn't allowed?

@polar: Any arrow that is completely or partially outside of the shaded regions must extend in a straight line from the bulb, and may not bend. There is no such restriction on arrows entirely inside the shaded regions.

Second to last rule

-EH

am 13. Oktober 2022, 04:11 Uhr von wisty
Really cool twist on magic squares! Loved the mid-solve relabeling, and the ending is clever as heck :)

am 13. Oktober 2022, 02:22 Uhr von virtual
Absolutely wild that this solves cleanly! I hadn't realized it was possible to fill a box without creating a valid arrow.

am 12. Oktober 2022, 19:56 Uhr von JayForty
Very interesting puzzle and brutally hard, at least for me :D I might have missed a clever trick or two.

am 12. Oktober 2022, 19:07 Uhr von StefanSch
Das war ein ziemlich schwerer Brocken. Aber schön war's schon ;-)

Schwierigkeit:5
Bewertung:98 %
Gelöst:15 mal
Beobachtet:4 mal
ID:000BLO

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