One rule changes the game: here, the player who takes the last counter loses. The challenge is to find a first move that is not merely plausible, but actually leaves the opponent without a defence.
The Last Counter Loses
Riddle statement
There are three piles with 3, 4 and 5 counters.
Two players take turns. On each turn, a player chooses one pile and removes any positive number of counters from it.
But there is an awkward rule: whoever takes the last counter on the table loses.
If you play first, can you guarantee a win? If so, what should your first move be?