Position Sums mit Pfeilen, "Air Opossum"
(Published on 24. February 2021, 06:00 by glum_hippo)
Fill the grid with digits 1 to 9 so that each row, column and 3x3 box contains each digit exactly once.
Digits in the first and second cell from the top and from the left are A and B. Clues outside the grid tell something about A and B: The clue closest to the grid gives the sum of A and B. The sum of the digits on positions A and B from that side is given in the clue in the grey bar.
EXAMPLE: the digits sequence 841627935 has A=8 and B=4, so A+B will be 12, and the sum of the 8th and the 4th (Ath plus Bth) digit is 3+6 = 9.
The number/digit in a circle constitutes the sum of the numbers/digits along each connected arrow. Digits/numbers may repeat along an arrow.
The puzzle can be solved in Penpa+ here. Automatic answer checking only works if you also enter all of the clue values along the edge.
Sudokupad version here. (No answer check since 2-digit numbers cannot be entered)
Solution code: Row 8, then column 5 (18 digits total)
Comments
on 26. August 2024, 14:28 by jinkela114514
Sudokupad version now also has answer check if you fill in all the digits (from 1~9) both in the sudoku grid and the outer clues.
on 5. February 2024, 19:45 by glum_hippo
Updated solve link.
on 17. February 2022, 14:24 by Vebby
Mind-boggling in the best possible way, a treat to solve!
on 14. September 2021, 16:43 by glum_hippo
added online solving tool tag
on 28. July 2021, 09:44 by ffricke
Wieder ein super schöner Lösungsweg !
on 27. February 2021, 12:12 by Statistica
Ganz klasse!
on 26. February 2021, 09:03 by MagnusJosefsson
Wow! That was awesome! Several memorable moments seemingly stuck before realizing the next step. Very enjoyable!
on 25. February 2021, 16:12 by henrypijames
Gosh, that entry was lang and hard - super intertwined, hats off to the author.
on 25. February 2021, 09:53 by PixelPlucker
Position Sums puzzles be like "hippoty hoppoty, your afternoon is now my property"
Challenging and fun as always :)
on 24. February 2021, 14:37 by marcmees
very very nice. thanks
on 24. February 2021, 10:28 by bigger
Nice. What's next? Between line or thermo.
— I am taking a break from Position Sums for now. I have a new Average Arrow puzzle in progress. - g_h
