Chess is the gymnasium of the mind.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Krasenkow"]
[Black "Nakamura"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "4r1k1/3nbppp/bqr2B2/p7/2p5/6P1/P2N1PBP/1R1QR1K1 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Qxf2+ 2. Kxf2 ( { White can try: } 2. Kh1 Qxf6 { Black wins with a large
material advantage. } ) 2... Bc5+ 3. Kf3 ( { White can try: } 3. Kf1 c3+ 4. Re2 c2 5. Qxc2 Bxe2+ 6. Ke1 Bd3+ 7. Kd1 Bf2 8. Nc4 Bxc2+ 9. Kxc2 Rxc4+ { Black wins with
a large material advantage. } ) 3... Rxf6+ 4. Kg4 Ne5+ 5. Rxe5 ( { White can try: } 5. Kh5 Bc8 6. Ne4 Rf5+ 7. Ng5 g6+ 8. Kh4 Rf4+ 9. gxf4 Bf2# ) ( { White can also
try: } 5. Kh4 Rh6+ 6. Kg5 Rg6+ 7. Kh4 Be7+ 8. Kh5 Rh6# ) 5... Bc8+ 6. Rf5 ( { White
can try: } 6. Kh4 Rxe5 7. Bf3 Rh6+ 8. Bh5 g5# ) 6... Bxf5+ 7. Kh4 ( { White can try: } 7. Kf4 Bd7+ 8. Kg5 Re5+ 9. Kh4 Rh6+ 10. Qh5 g5# ) 7... Rh6+ 8. Kg5 Bc8 9. Nxc4 Rg6+ 10. Kf4 Rf6+ 11. Kg5 Re5+ ( { Black can try: } 11... Be3+ 12. Nxe3 Re5+ 13. Kh4 Rh6+ 14. Qh5 g5# ) 12. Nxe5 Be3+ 13. Kh4 Rh6+ 14. Qh5 g5# 0-1