Deduction puzzles are always my favorites since I was a child. It's a shame that it's not changed even I'm much older now.
I bought a book recently and one puzzle is interesting. Try it! (and I'm trying my English writing ability)
There are 10 coins and each player can take 1, 2 or 4 coins in each turn.
You must take coin(s) in your turn and you will lose the game if you take the last one(s).
Two players, Alice and Bob, are both smart and ambitious to win the game. If they can't win, they'll try to make the game draw.
Will there be a winner? Who will win the game if Alice starts the first round?
The answer will not be revealed unless anyone would like to leave the message to answer it.