The scenario
The Baskin Robbins 31 game is a two-player counting game where players say 1-3 numbers in sequence, and the player who says 31 loses. The first player can force a win by always landing on safe numbers (2, 6, 10, ..., 30).
What is in this drawing
Read the decisions behind it.
01
Deciding the initial move (saying 1, 2 to land on 2).
02
Responding to opponent's move with the complement to 4 to maintain a winning position.
Useful for understanding impartial games and winning strategies in combinatorial game theory.
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