Logic Masters Deutschland e.V.

Algebra 101 (Cipher X-Sum)

(Published on 29. April 2023, 09:00 by tallcat)

As i've continued to challenge myself as a solver, I was fairly certain that that cipher puzzles would cross my path sooner or later. I freely admit that I did not wholly understand the appeal, but was pleasantly surprised at how much I enjoyed them (particularly recommending recent ones by Niverio found here, here, and here). In setting my own cipher puzzle, I certainly found itchallenging and the difficulty was hard to gauge for me (so it may be on the hard side for some). Nonetheless, as a first attempt, I am pleased with how it turned out and hope that I can set more in the future. Happy solving!

Normal sudoku rules apply

X-Sums: Clues outside the grid are the total of the first X cells from its corresponding direction, where X is the value of the first cell.

Cipher: Clues are ciphered where each unique letter stands for a different digit from 0-9. The ? denotes a positive digit (cannot be zero) but may not necessarily be the same digit in each clue.



Can be played online at Penpa or Sudokupad

(Answer check requires digits to be filled in cipher table)

Solution code: Row 5 (left to right) followed by column 7 (top to bottom). 18 digits, no spaces.

Last changed on -

Solved by Leonard Hal, Godrick, marcmees, AvavaAvA, Playmaker6174, Jlrice2, Jesper, Piatato, AvonD, abed hawila, tuturitu, killer_rectangle, Elliott810, Cypher, farodin64, RJBlarmo, ManuH, Steve360, zlotnleo, arauwer, Vebby, PixelPlucker, Niverio, darrenfwl, Bankey, Chefofdeath, SKORP17, OGRussHood, karlmortenlunna, Myxo, Bellsita, fjam, PrimeWeasel, AnnaTh
Full list

Comments

on 2. June 2023, 13:52 by Bankey
Very nice and delightfully tough puzzle. Thanks, @ tallcat:)

on 27. May 2023, 20:55 by Niverio
Very nice break-in! Lovely to see you in the cipher world ;)

on 29. April 2023, 23:24 by abed hawila
Excellent puzzle!

on 29. April 2023, 17:53 by Piatato
This one blinded me like no other puzzle, but once I realized where to look, the puzzle flowed very nicely! :)

on 29. April 2023, 15:57 by Playmaker6174
Lovely puzzle! The start was quite eye-opening and the solve later on remained nice and lovely till the end :)

on 29. April 2023, 15:50 by marcmees
Nice flow. Enjoyed that. thanks

Difficulty:4
Rating:94 %
Solved:34 times
Observed:9 times
ID:000DPA

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Solution code:

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