No one will regret the time dedicated to chess, as it will help in any profession.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown424"] [Result "0-1"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "8/8/4p3/1p1pP3/2P5/1n1K2k1/1R6/8 b - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1... bxc4+ 2. Ke3 d4+ 3. Ke4 d3 4. Ke3 d2 5. Ke2 Kf4 6. Rb1 Kxe5 7. Rg1 ( { White can try: } 7. Rh1 Kd4 8. Rh4+ Kc3 9. Kd1 Nc5 10. Rh2 Ne4 11. Rh3+ Kd4 12. Kc2 d1=Q+ 13. Kxd1 Nf2+ 14. Kd2 Nxh3 { Black wins with a large material advantage. } ) 7... Nd4+ 8. Kd1 c3 9. Rf1 Nf5 10. Rf3 Kd4 11. Ke2 Ne3 12. Rxe3 d1=Q+ 13. Kxd1 Kxe3 14. Kc2 Kd4 15. Kd1 Kd3 16. Kc1 c2 17. Kb2 Kd2 18. Kb3 c1=Q { Black wins with a large material advantage. } 0-1