Bobby just drops the pieces and they fall on the right squares.
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[Event "rated untimed match"]
[Site "Stroebeck"]
[Date "1973.??.??"]
[Round "?"]
[White "Geisert"]
[Black "Starck"]
[Result "0-1"]
[BlackElo "0"]
[FEN "4r1k1/pp2bpp1/2p2n2/8/3P3R/P7/1PQ2PP1/R1B1K3 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ Mate in 2. } 1... Bb4+ 2. Kd1 Re1# 0-1