Get closer to the endgame. With fewer pieces left in the position, the dominance of the two bishops can really be felt, as they can control both sides of the board at once. If the enemy knight doesn't have a secure outpost to use, it can find itself passive and restricted in its own territory.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown514"] [Result "0-1"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "5r1k/p6p/8/Bpp4r/3p1p2/PP1P1P2/1P1Q1KPq/4RR2 b - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1... Qxg2+ ( { Black can try: } 1... Qg3+ 2. Ke2 Qxg2+ 3. Rf2 Re5+ 4. Kd1 Rxe1+ 5. Qxe1 Qg5 { White wins with a large material advantage. } ) 2. Kxg2 Rg8+ 3. Kf2 Rh2# 0-1