Know the ins and outs of how knights fight against passed pawns. Knights can either blockade a passed pawn, or attack it, but not both! If you're trying to promote a pawn, see if you can deflect the enemy knight using your own knight as bait. Knights are also notoriously bad at dealing with passed rook pawns, as they have less room to maneuver.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown551"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "1b6/6p1/p3p2k/3pN3/P2Pr2q/1P2P2p/3Q1R1P/7K w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. Rf8 Kh7 2. Rh8+ ( { White can try: } 2. Rxb8 Rxe5 3. dxe5 Qe4+ 4. Kg1 Qg4+ 5. Kf1 Qf3+ 6. Qf2 Qd1+ 7. Qe1 Qf3+ 8. Qf2 Qd1+ 9. Qe1 Qf3+ 10. Qf2 { Draw by repetition of position. } ) 2... Kxh8 3. Ng6+ Kg8 4. Nxh4 Rxh4 5. Qa5 Kh7 6. Qd8 Re4 7. Qxb8 Rxe3 8. Kg1 { White wins with a large material advantage. } 1-0