# Hints: Playing with Matches

Matchstick puzzle help:

A list of concepts that are used in one or more of the puzzles:

- Chinese/Japanese characters for numbers
- Repeating decimals
- Writing out numbers in letters
- A pun
- Scientific notation
- Matrix multiplication
- A trigonometric function
- Unicode.
- Implied multiplication (ie. no “X” symbol)

Stuck on extraction:

The empty bottom grid suggests that matches should be placed on it somehow, based on the solutions to the individual matchstick puzzles. Keep the orientation of the sticks in mind. The final extraction uses semaphore.