Logic Masters Deutschland e.V.

Residual X-Rays

(Published on 18. October 2022, 10:15 by FullDeck-Missing)

Normal sudoku rules apply. Each row, column, and box must contain a complete set of the digits 1-9.

Modular lines: every set of three sequential digits along a line must contain a complete set of residues modulo 3, i.e. one digit from {1,4,7}, one from {2,5,8}, and one from {3,6,9}. Digits on two-cell lines cannot be from the same residue set. Digits may repeat on a line if allowed by other rules.

X-Sums: Numbers outside the grid give the sum of the first X digits in the row or column (starting next to the number outside the grid) where X is the first digit along that row or column.

Every X-sum forms a hidden modular line of length X.

Try the puzzle on the Sudokupad app by Sven Neumann.

Originally published as part of the Modular Lines Competition Pack for Cracking the Cryptic.

You can find a complete list of our puzzles on LMD here. Please also visit us at Missing Deck Puzzles.

Solution code: Row 2, left to right; 9 digits, no spaces.

Last changed on -

Solved by Elliott810, fabianv, efnenu, OhHeyGuysItsMax, Vebby, SirWoezel, karen_birgitta, acwill, deepblue20, Jds2, rockratzero, h5663454, Taikatalvy
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Difficulty:4
Rating:94 %
Solved:13 times
Observed:2 times
ID:000BM1

Variant combination Online solving tool

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