Here is the full list of all 16 Matchsticks - there are Coffee Break Club achievements.
Find a secret solution in level 57
Unlock all achievements
Finish all levels
Complete 50 levels
Click on the matchbox 50 times
Complete 25 levels
Complete 15 consecutive levels without losing
Complete one level in each theme
Replay a completed level
Lose the same level 5 times
Restart a level 5 times
Restart a level once
Complete 10 levels
Lose the game once
Complete one math level
First level completed