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 "Melody Amber"]
[Site "?"]
[Date "2007.??.??"]
[Round "?"]
[White "Vassily Ivanchuk"]
[Black "Viswanathan Anand"]
[Result "1-0"]
[BlackElo "0"]
[ECO "A02"]
[FEN "r3r1k1/pp3pp1/8/2P1n1qp/1P6/P1Q2P2/5PBP/R3R1K1 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. f4 Qxf4 2. Re4 Qf5 3. Rae1 f6 4. f4 Qg6 5. fxe5 { White wins with a large
material advantage. } 1-0