EntropiArrow
(Published on 24. June 2026, 20:12 by Mad-Tyas)
Sudoku on:
SudokuPad
Rules:
Sudoku: Fill every row, column and marked 3x3 box with the digits 1-9.
Skyscraper: Consider each digit in the grid as a building of that height. Clues outside the grid give the number of buildings that can be seen from that direction, with larger buildings hiding smaller ones.
Arrow: Digits on an arrow have to sum to the digit in the corresponding circle and may repeat if allowed by other rules.
Entropy: Each 2x2 box in the grid has to contain a low digit (1, 2, 3), a middle digit (4, 5, 6) and a high digit (7, 8, 9).
Have fun solving!
Solution code: Digits in in row 9 (left-to-right).
Comments
on 1. July 2026, 19:33 by War
Good to see you
on 29. June 2026, 19:03 by Qodec
Elegant and beautiful, thanks!
on 25. June 2026, 10:39 by Snookerfan
Excellent and fun puzzle! So minimalistic, but full of beautiful logic. Thanks!
on 25. June 2026, 01:36 by fractalminding
It was first sudoku with skyscrapers i solved. I don't like skyscrapers rule because authors don't write "at least" or "exactly" about number of buildings that can be seen. I don't understand why. Thank you for fun entropy sudoku ♥️
