The advantage of the two bishops (when facing a bishop and knight or two knights) is a favorite of many masters. When working together, the two bishops can really dominate the chessboard.
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[Event "rated untimed match"] [Site "?"] [Date "1972.??.??"] [Round "?"] [White "Sigurjonsson"] [Black "Vizantiadis"] [Result "0-1"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "5r1k/Rb4r1/3Q4/1p1q3p/1B1b3P/P4P2/1P4P1/3R3K b - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1... Rxf3 2. Qxd5 Rh3+ 3. gxh3 Bxd5+ 4. Kh2 Be5# 0-1