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