Chess is a good way to learn, to keep your brain fit and the ego in check.
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[Event "rated untimed match"]
[Site "?"]
[Date "1950.??.??"]
[Round "?"]
[White "Petrov"]
[Black "Alster"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "2qr1rk1/2p1ppbp/1pn3p1/p2nP3/3P2b1/P1N2NP1/1P1B1PBP/R3QRK1 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Bxf3 2. Bxf3 Nxd4 3. Bxd5 Rxd5 4. Nxd5 Nf3+ { White can try: } 5. Kg2 ( { White can try: } 5. Kh1 Qh3 6. Nxe7+ Kh8 7. Qe3 Qxh2# ) 5... Nxe1+ 6. Rfxe1 Qa8 7. Bc3 e6 8. f4 exd5 { Black wins with a large material advantage. } 0-1