Position Sums mit Renban-Streifen
(Published on 29. June 2021, 07:23 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 blue bar.
EXAMPLE: the digits sequence 841627935 have 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.
Normal Renban rules apply: each green or red line is filled with a non-repeating series of consecutive numbers (btw 1 and 17), in any order.
The puzzle can be solved in Penpa+ here. Automatic answer checking only works after you've removed any notations outside the 9x9 grid.
The same in SudokuPad (not recommended).
Solution code: Row 5, then column 5 (18 digits total)
Comments
on 18. December 2023, 19:06 by glum_hippo
updated links
on 21. August 2022, 15:24 by Mody
Genau die richtigen Hinweise an den richtigen Stellen :)
on 14. September 2021, 16:31 by glum_hippo
added online solving tool tag
on 6. September 2021, 17:43 by MagnusJosefsson
Fantastic puzzle! Attractive and clean solution path with some cool logic and and well-measured difficulty level. I am really glad I looked back for some puzzles that I might have missed during the summer, this one was incredible!
—Thank you, Magnus; your comment is a source of great cheer for me.
on 15. August 2021, 19:18 by grkles
Extremely intricate puzzle, and it took me a while to get my mind around the interactions, but once I learned its language, it spoke beautifully :)
Thank you for your comment & for solving, dear grkles!
on 15. July 2021, 03:33 by glum_hippo
Danke an marcmees ffricke und AnnaTh für das nette Feedback!
on 13. July 2021, 19:33 by AnnaTh
Tolles Rätsel! Puh, große Verhedderungsgefahr. Aber sehr schön logisch lösbar. Klare Rätselempfehlung! ;-)
on 11. July 2021, 15:08 by ffricke
Wirklich super schönes Rätsel !
on 5. July 2021, 23:21 by marcmees
finally discovered my mistake on the sum in column 6. Glad I made it. Nice puzzle. Thanks.
on 4. July 2021, 08:53 by henrypijames
Well, I rate it 3½ stars. The entry was well telegraphed, and I never felt lost afterwards either.
——I appreciate your input, and thanks for solving!
on 3. July 2021, 20:03 by zuzanina
Sehr schön! Und schön - Schritt für Schritt - logisch lösbar! :-)
— danke fürs Lösen, und für den netten Kommentar. Sind 5 Sterne hier angemessen oder könnte man's herunterkurbeln?
- Ich sehe die Schwierigkeit auch eher bei 3 bis 4 Sternen, aber das regelt sich ja mit den nächsten Lösern von selbst.
— das hilft trotzdem enorm... ich will die Leute ja mit 5 Sternen nicht abschrecken.
on 3. July 2021, 08:33 by PixelPlucker
Great puzzle! The hybrid logic was really engaging. Needed to be really meticulous with this one.
—Thank you for solving, dear friend
on 29. June 2021, 19:36 by Jesper
Good combination! Intricate but nice clean logic throughout.
—Thanks, Jesper! It's not the most attractive looking puzzle, but I thought the path was enjoyable enough to share.
