The Cartographer's Lie
A daily logic puzzle: every clue is true, one hex is a lie
3 followers
A daily logic puzzle: every clue is true, one hex is a lie
3 followers
Somewhere on today's map, one hex is drawn as something it is not. You get four survey notes, and every one of them is true. Only one hex can satisfy all four at once; that hex is the liar. "The lie touches exactly 0 reefs." "The lie is drawn on reef or heath." Put those together and every reef is dead. You are not guessing, you are proving. One map a day, the same one for everyone, about three minutes. Free in the browser, no account.
The Cartographer's Lie launches
Launch date
The Cartographer's Lie: now on AndroidOne hex on this chart is a lie. Find it. A new map daily.
Launched on October 20th, 2026
The Cartographer's LieA daily logic puzzle: every clue is true, one hex is a lie
Launched on September 3rd, 2026