Strategy requires thought, tactics require observation.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown19"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "8/8/2k1p2p/3bPpbB/2pPp3/2P1P3/r4RKP/4B3 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Ra1 2. Re2 ( { White can try: } 2. Bd2 f4 3. exf4 e3+ 4. Kg3 Rg1+ 5. Kh3 exf2 6. Be2 Be7 7. f5 Bg5 8. f6 Be4 9. Bxc4 Bf5# ) 2... Bxe3 3. Rxe3 f4 4. Re2 f3+ 5. Kf2 fxe2 6. Kxe2 { Black wins with a large material advantage. } 0-1