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 "Unknown615"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "r1b1r1k1/3n1p2/1qn1p1P1/pp1pP3/2p2B2/P1P1P3/1PB1pP2/1K1R3R w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. gxf7+ Kf8 2. Rh8+ ( { White can try: } 2. fxe8=Q+ Kxe8 3. Rh8+ Nf8 4. Re1 Kf7 5. Rxe2 Ba6 6. Bh6 Nxe5 7. f4 Ng4 { Black wins with a large material
advantage. } ) 2... Kxf7 3. Rh7+ Kg8 4. Rg1+ Kf8 5. Bh6# 1-0