Turnabout
Puzzle 1
Start with four matches in a line facing the same way.
In each “move” you are allowed to turn three matches.
How many “moves” does it take to turn all the matches around so they are all facing the other way?
Puzzle 2
Now start with five matches in a line all facing the same way.
Turn three each move. How many moves does it take to turn the whole line around?
Puzzle 3
Now try with 6 matches.
Puzzle 4
Now try with 7 matches
