Opening Exercise: The audio will lead you through a series of moves from the beginning of a game. At a certain point, one player will make a mistake and it’ll be your job to find the move to punish it.
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PGN for today's exercise:
1. f3 e5 2. Nc3 Nc6 3. b3 d5 4. g4
And the answer is...
4… Qh4#!