Logic Masters Deutschland e.V.

Grab your towel… grab your electronic thumb… and let's hitchhike the galaxy again.
Mostly Harmless: Secondary Phase starts 4 September 2026 with Babel Fish.

"Zaphod Beeblebrox, the man who invented the Pan Galactic Gargle Blaster, ex‐confidence trickster, once described by Eccentrica Gallumbits as the Best Bang since the Big One, and recently voted the Worst Dressed Sentient Being in the Known Universe for the seventh time... has he got an answer this time? We asked his private brain care specialist Gag Halfrunt..." "Well, Zaphod's jist zis guy you know?" - The Hitch Hiker's Guide to the Galaxy

Solve in SudokuPad

Rules

Normal sudoku rules apply: fill the grid with digits 1–9 so that no digit repeats in any row, column, or 3×3 box.

The Ten line is marked with Xs to distinguish it from the Palindrome, otherwise all variant clues follow their standard meanings; full descriptions are provided below.

• Dynamic Fog: The grid is covered with fog; entering correct digits may clear fog elsewhere, and no guessing is required. Any lines or markings continue and connect beneath fog. Unless revealed, no additional clues should be assumed to exist under the fog.
• Palindrome: Digits along a grey line read the same forwards and backwards.
• Zipper Line: Along a purple line, pairs of digits equidistant from each end of the line sum to the same value. If the line has an odd number of cells, the centre cell contains that sum. The dot marks the centre of the line.
• German Whispers: Along a green line, adjacent digits differ by at least 5.
• Ten Line: A grey line marked with Xs is divided into contiguous segments, the digits in each segment sum to 10. Segments do not overlap and their boundaries are not indicated, solvers must determine them.
• Entropic Line: Along a peach line, any three adjacent digits must include one low digit {1,2,3}, one medium digit {4,5,6}, and one high digit {7,8,9}.
• Parity Line: Along a red line, digits must alternate between odd and even.
• Killer Cages: Digits in a cage must sum to the number shown in the corner.
• Nabner Line: A yellow line cannot contain two digits anywhere on the line that are consecutive.
• Don’t Panic!: No guessing is required - you are one hoopy frood.

Walkthrough Video

Primary Phase

• Fit the First - Mostly Harmless
• Fit the Second - Mostly Harmless: Know where your towel is
• Fit the Third - Mostly Harmless: Zaphod Beeblebrox <-- You are here
• Fit the Fourth - Mostly Harmless: Hyperspace Bypass
• Fit the Fifth - Mostly Harmless: Beware of the Leopard
• Fit the Sixth - Mostly Harmless: Heart of Gold

Secondary Phase airing later this year with Mostly Harmless: Babelfish...