Browne - Donner, The Master Game 1979
Today, I'm shamelessly stealing a format from Justin (III answer; II answer; I answer).
It's Walter Browne playing White against Jan Hein Donner in the first round of The Master Game, series IV. Donner has just played ...Qd7-f7 and Browne, having just made the time control, resigned.
What happened next?