159²
(Eingestellt am 28. Februar 2023, 23:07 Uhr von Arlo Lipof)
Regeln:
- Es gelten die üblichen Sudoku-Regeln.
- 159² Regel. Ziffern in Spalten 1, 5 und 9 indizieren die Spalten-Positionen der jeweiligen Ziffern 1, 5 und 9 in jeder Zeile; ferner indizieren Ziffern in Zeilen 1, 5 und 9 die Zeilen-Positionen der jeweiligen Ziffern 1, 5 und 9 in jeder Spalte. Z.B. falls Ziffer (3,1) eine 7 ist, dann ist Ziffer (3,7) eine 1; gleichermaßen, falls Ziffer (5,8) eine 2 ist, dann ist Ziffer (2,8) eine 5.
- Rotationssymmetrie. Ziffern in Zellen (Z,S) und (10-Z,10-S) haben stets eine Summe von 10.
Links: F-Puzzles, F-Puzzles (weiß), CTC, CTC (weiß)
Viel Spaß! Kommentare und Bewertungen sind natürlich erwünscht.
Lösungscode: Zeile 2 dann Spalte 3 (18-stellige Zahl ohne Leerzeichen)
Kommentare
am 12. Februar 2024, 22:09 Uhr von ViKingPrime
Good stuff! Thank you for the recommendation, very satisfying to solve.
am 11. September 2023, 23:03 Uhr von MarthaB
This is a great indexing puzzle. I can't understand why the rating is low.
A: Thank you, me neither! ;-)
am 29. März 2023, 04:33 Uhr von Colonel
I put in a solution code that worked but it said it was wrong. Is there instruction on rotational symmetry? The explanation was not clear.
A: Yes, in the final grid the digits in ‘opposite’ cells (R,C) and (10-R,10-C) always sum to 10, e.g. in cells (4,2) and (6,8) the digits 1 and 9 sum to 10. (Sorry, I didn’t see your comment earlier.)
am 6. März 2023, 01:05 Uhr von josemadre
Great construction, difficulty 2 stars for me
A: Glad you liked it!
am 4. März 2023, 18:49 Uhr von Danekiller
A very nice idea and the Logical Path is very nice as well. Agree however With earlier speaker that this should rather be considered 3 in difficulty thank 2
A: Thank you for your nice words! I had set a 3* difficulty at first, but decided to change it for 2* in the end because there have been a lot of indexing puzzles posted recently here on LMG, and so imo a lot of solvers are quite experienced in solving them.
am 2. März 2023, 20:42 Uhr von Shrouded
The double 159 rule is always tricky to follow in your mind, but the combination with the rotational symmetry works well and makes for a fun challenge. Definitely closer to 3 stars difficulty imo
A: Thank you for your comment. In my opinion the difficulty of this puzzle really depends on your previous experience with the typical 159 logic.
am 1. März 2023, 03:34 Uhr von Puzzlers100
There is only one correct answer, make sure to double check the radial symmetry rule when solving for the last bit of the puzzle!
