Professor Layton and the Curious Village
Puzzle 123: Tons of Triangles
Count every triangle in a big triangle crossed by several lines.
- Chapter
- Layton's Challenges (bonus)
- Location
- Layton's Challenges
- Picarats
- 60 picarats
- Type
- Write Answer
- Region
- Same in all versions
Hint 1: A gentle nudge. Tap to flip.
Count the small triangles first, then look for bigger ones made of several pieces.
Tap to flip backHint 2: The key idea. Unlocks after the previous card is flipped.
Go line by line: for each pair of lines, look for a third that closes a triangle.
Tap to flip backHint 3: Almost there. Unlocks after the previous card is flipped.
Don't forget the big outer triangle itself.
Tap to flip backAnswer: See the answer. Unlocks after the previous card is flipped.
The answer is 17.
Tap to flip backSolution, FAQ and sources
Solution
Count methodically so nothing gets counted twice: the single small regions first, then triangles made from two pieces, then three or more, and finally the whole outer triangle.
The total is **17**. (This depends on the drawing, which we can't reproduce; two independent guides agree on 17.)
About this puzzle
A large triangle has several straight lines running through it. How many triangles of any size can you find in the drawing?
Unofficial fan guide, not affiliated with LEVEL-5. Puzzle description, hints and solution written by Hint by Hint.
Similar puzzles: Puzzle 117: Painting a Cube, Puzzle 116: The Largest Total, Puzzle 102: Aces and the Joker, Puzzle 130: Too Many Queens 5
All Professor Layton and the Curious Village puzzles
FAQ
What is the answer to Puzzle 123, Tons of Triangles, in Professor Layton and the Curious Village?
The answer is 17.
Where do you find Puzzle 123 in Curious Village?
Puzzle 123 is one of the bonus puzzles in Layton's Challenges, outside the main story.
How many picarats is Curious Village Puzzle 123 worth?
60 picarats.
Sources
- Professor Layton Wiki (Fandom): Puzzle:Tons of Triangles
- StrategyWiki: Professor Layton and the Curious Village/Layton's Challenges
- Professor Layton Wiki (Fandom): Module:PuzzleData/CV
Facts checked on November 14, 2026
Unofficial fan guide. Not affiliated with, endorsed by, or sponsored by LEVEL-5 Inc. Professor Layton, The New World of Steam, and all related names, characters, and trademarks are the property of their respective owners.