The hardest game to win is a won game.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown433"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "r1b3nr/p2p1k1p/n1p2pq1/6B1/2pP3P/P1P5/2P1QPP1/4RK1R w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. h5 ( { White can try: } 1. Qe8+ Kg7 2. Re7+ Nxe7 3. Qxe7+ Kg8 4. Bxf6 Bb7 5. h5 Re8 6. hxg6 Rxe7 7. Bxe7 hxg6 8. Rxh8+ Kxh8 { Black wins with a large material advantage. } ) 1... Qxg5 2. Qe8+ Kg7 3. h6+ Nxh6 4. Re7+ Nf7 5. Qxf7# 1-0