Sudoku Variants Series (193) - Triangle Sums Sudoku
(Published on 8. August 2017, 00:00 by Richard)
Triangle Sums Sudoku
Inspiration for this type comes from WSC 2011.
Solve online in Penpa+ (thx Nick Smirnov!)
Place the digits from 1 to 9 once in every row, column and 3x3-block. A digit placed on a triangle is the sum of the two digits that are placed in the neigbouring cells on the short sides of the triangle. (Example: R1C3+R2C4=R2C3.)
A square consists of two such triangles. It is part of the puzzle to find out how the two triangles are positioned to form the square.
All possible triangles and squares are given.
Solution code: Row 5, followed by column 5
Comments
on 19. August 2022, 05:00 by Richard
Added link and tag for online solving. Thx Nick!
on 18. September 2021, 00:00 by Nick Smirnov
Penpa:
https://git.io/JzkmV
on 22. August 2017, 13:10 by Eisbär
Nice one! And indeed very interesting...
on 10. August 2017, 23:23 by WAW
Wahrhaftig mühelos logisch lösbar. (Wenn man alle Irrwege hinter sich gelassen hat.)
on 8. August 2017, 13:09 by flaemmchen
Das war ja interessant :-))
