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 "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown50"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "8/8/8/3p3p/pPkPp1pP/2P1P1P1/1K6/8 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. Ka2 ( { White can try: } 1. Ka3 Kb5 2. Ka2 Kc6 3. Kb2 Kb6 4. Ka3 Kb5 { Draw. Both sides can triangulate moves. } ) 1... Kxc3 ( { Black can try: } 1... Kb5 2. Ka3 Kc4 3. Kxa4 Kxc3 4. b5 Kd3 5. b6 Kxe3 6. b7 Kxd4 7. b8=Q { White wins with a large material advantage. } ) 2. b5 Kd3 3. b6 Kxe3 4. b7 Kxd4 5. b8=Q { White wins with a large material advantage. } 1-0