Logic Masters Deutschland e.V.

Whose Lie Is It Anyway?

(Published on 24. January 2025, 08:41 by Scojo)

Rules:
  • Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
  • Some clues in this puzzle are liars! For any value N, either all killer cages with a clue of N are lying, while all skyscrapers with a clue of N are true, OR all killer cages with a clue of N are true, while all skyscrapers with a clue of N are lying.
  • Killer Cages: A true killer cage may not contain any repeated digits and must sum to the clue in the top left corner. A lying killer cage may contain repeated digits, or not sum to the clue, or both.
  • Skyscrapers: A digit X represents a building of height X. Taller buildings hide shorter buildings. A true skyscraper clue outside of the grid indicates the correct number of buildings that could be seen from that position, looking into the grid. A lying skyscraper clue must not.

Solve in SudokuPad

Solution code: Row 8

Last changed on on 24. January 2025, 11:27

Solved by Piff, IcyFruit, Vulajin, killer_rectangle, MattYDdraig, alexsmart, marcmees, Mad-Tyas, SKORP17, Felis_Timon, BenTen, Joyofrandomness, Vodakhan , Elker, by81996672, helisolver, ErnoWindt, zhangjinyang, farodin64, palpot, ashwin, Montikulum, Lovejoy , Crul, karlmortenlunna
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Comments

on 24. January 2025, 19:36 by BenTen
Very cute puzzle. I was surprised on multiple occasions which rule turned out to be the lie...or am I lying?!

on 24. January 2025, 16:02 by Mad-Tyas
Nice construction!

on 24. January 2025, 15:28 by marcmees
very nice elimination exercise. Thanks

on 24. January 2025, 13:21 by MattYDdraig
Really elegant logic and (with lies removed) an incredibly sparse grid.

Difficulty:2
Rating:89 %
Solved:25 times
Observed:3 times
ID:000LQP

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