A knight on the rim is dim.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown127"]
[Result "*"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "6k1/4Rp1p/6p1/p7/4P2P/6Q1/P4PK1/q2r4 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Qf3 ( { White can try: } 1. Qb8+ Kg7 2. Qe5+ Qxe5 3. Rxe5 { With equal
chances. } ) ( { White can also try: } 1. Re8+ Kg7 2. Qa3 Rg1+ 3. Kf3 Qd1+ 4. Kf4 Qg4+ 5. Ke5 f6+ 6. Kd4 Qd7+ 7. Kc3 Qxe8 8. Qxa5 { Black wins with a large
material advantage. } ) 1... Kh8 2. e5 Rg1+ 3. Kh2 h5 4. Qf6+ Kh7 5. Qxf7+ Kh6 6. Qh7# *