Lie of Sight Play

Logic puzzles for adults

Lie of Sight is a logic puzzle for grown-ups who want a good think in a few minutes. Each case is a room seen from above. Everyone in the Fibberson family says what they saw, and exactly one of them is lying. You find the liar by deduction from what each person could see from where they stood: no trivia, no word lists and no luck.

The kitchen from above: a fridge, a counter and a stove along the top wall, a tall clock and a plant in the corner, a table in the middle, a wall clock and a cookie jar, with nobody in it yet.
Each case is one room. Where everyone stood is the puzzle.

What kind of logic it is

It’s spatial deduction. Each person in the family has one fixed rule for what they notice:

  • Dad. Sees his whole row and column. Walls and tall things block what's behind them.
  • The Kid. Sees his whole row and column, but he's short: low things block him too, like tables, sofas, the cake and the vase. He can crawl under tables and sofas, but others still see him there.
  • Grandma. Sees all 8 directions, but only 2 tiles. Walls and tall things block her. She can peek around a corner only if she could step around it.
  • Rex. Can't see. Smells the 8 tiles around him, through walls and furniture.
  • Fibs. Fibs never looks at anything straight on. She watches along her four diagonals, as far as they go. Walls and tall things block her; low things don't.

So a story becomes a set of squares. “I saw the clock” means someone stood where the clock was in their view. “I didn’t see Grandma” rules out whole rows. Put the stories together and most of the room falls away. When everyone but one can be telling the truth at once, that one is your liar.

From gentle to tricky

  1. PracticeA few short cases teach the rules one at a time, with tips as you go.
  2. 15 Case FilesGentle cases. In the first seven the cards turn green or red as you move people; from Case File 8 they stay gray until you press Check.
  3. 10 Tricky CasesHarder rooms, all with Checks: the cards stay gray until you press Check. You get 3, at 100 points each, so you think before you test.
  4. Detective modeWith the unlock. The cards never show what’s true or false. You get two accusations, and it has its own rank.
  5. The Cat Files: 35 new casesWith the unlock. Five chapters with Fibs the cat, from gentle to the hardest in the game. Up to 105 stars to earn.

The daily sits alongside all of it: one new case a day, the same for everyone, with your streak riding on it.

Why it suits adults

  • It’s short. A case takes minutes, not an evening. One with your morning coffee is plenty.
  • It’s fair. One liar, and enough on the board to prove it. If you’re stuck, a hint costs you points, never the case.
  • There’s no luck. No dice, no cards to draw and nothing random once the case begins. Only what each person could see.
  • It’s calm. No coins, no ads and no lives to buy back. Time costs a few points, and paused time doesn’t count.
  • There’s somewhere to go. Five ranks, Rookie to Chief Inspector, if you like something to climb.

Questions people ask

Are the puzzles hard?

They start gentle and get harder as you go. The first cases teach one rule at a time; the Tricky Cases ask you to think before you test, and the Cat Files end with the hardest cases in the game.

Is there always exactly one answer?

Yes. Every case has exactly one liar, and the board holds everything you need to prove it, so you never have to guess.

Is it free?

Yes. The daily case is free every day, and so are 25 more: practice, 15 Case Files and 10 Tricky Cases. A one-time unlock adds more, with no subscription and no ads.

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