What's Black's Magic Move? 47... ?

Spanish Grandmaster Alexei Shirov has been known for his fierce competitive spirit and exciting chess. This is a position from a game he played as Black against another very strong Grandmaster – the former world chess champion Veselin Topalov of Bulgaria. This game was played in 1998 in Linares Can you spot the 47th move that Shirov played in this position as Black? Don’t worry if you cannot… because, in all probability, even your chess engine won’t spot it!

Topalov Veselin (BUL) (2700) – Shirov Alexei (ESP) (2720)

Result: 0-1
Site: Linares (Spain)
Date: 1998
[…] 1.d4 ¤f6 2.c4 g6 3.¤c3 d5 4.cxd5 ¤xd5 5.e4 ¤xc3 6.bxc3 ¥g7 7.¥b5+ c6 8.¥a4 O-O
(8…b5 9.¥b3 b4 10.¤e2 bxc3 11.¥e3 ¥a6 12.¦c1 ¤d7 13.e5 £a5 14.£c2 c5 15.¥xf7+!? ¢xf7 16.e6+ ¢e8!? 17.exd7+ ¢xd7 18.dxc5 ¦ab8 19.O-O ¦b2 20.¦fd1+ ¢e8 21.£e4 ¦xe2 22.£a8+ ¢f7 23.£d5+ ¢e8 24.£a8+ 1/2 : 1/2, Gleizerov – Rytshagov, Vilnus 1997)
9.¤e2 ¤d7 10.O-O e5 11.f3
(11.¥e3 £e7 12.£c2 ¤b6 13.¥b3 ¥e6 14.¦ad1 ¤c4 15.¥c1 b5 16.f4 f6 17.¦f3?! exf4 18.¥xf4 f5! Unclear Khudiakov – Beshukov, Smolensk 1991)
11…£e7 12.¥e3 ¦d8 13.£c2 ¤b6 14.¥b3 ¥e6 15.¦ad1 ¤c4 16.¥c1 b5 17.f4 exd4 18.¤xd4 ¥g4 19.¦de1 £c5 20.¢h1 a5 21.h3! ¥d7 22.a4! bxa4 23.¥a2 ¥e8 24.e5 ¤b6 25.f5! ¤d5 26.¥d2?
(26.f6! £xc3 (26…¥f8 27.e6!ќ) 27.fxg7 £xd4 28.e6 £xg7 29.¥b2ќ Razuvaev)
26…¤b4 27.£xa4 ¤xa2 28.£xa2 ¥xe5 29.fxg6 hxg6 30.¥g5 ¦d5 31.¦e3 £d6 32.£e2 ¥d7 33.c4 ¥xd4 34.cxd5? (34.¥e7! £c7 35.cxd5 ¥xe3 36.£xe3 With compensation for the material) 34…¥xe3 35.£xe3 ¦e8 36.£c3 £xd5 37.¥h6 ¦e5 38.¦f3 £c5 39.£a1 ¥f5 40.¦e3 f6 41.¦xe5 £xe5 42.£a2+ £d5 43.£xd5+?! cxd5 44.¥d2 a4 45.¥c3 ¢f7 46.h4 ¢e6 47.¢g1 ¥h3!!
(47…a3 48.¢f2 ¥e4 49.g3 ¢f5 50.¥a1 a2 51.¥b2 ¥b1 52.¢e3 ¢g4 53.¥xf6 ¢xg3 54.¢e2 ¢f4 55.¥b2 ¢e4 56.¢d2 d4 57.¥a1 ¥d3 58.¥b2 ¥c4 59.¥a1 ¥e6 60.¥b2 ¥f5 61.¥a1 d3 62.¥b2 ¢f4 63.¥a1 ¢g4 64.¥f6 a1=£ 65.¥xa1 ¢xh4 66.¥f6+ g5 67.¢e3=)
(48.¢h2 ¢f5 49.¢xh3 ¢e4 50.g4 d4 51.¥b4 d3 52.h5 gxh5 53.gxh5 a3 54.h6 a2 55.¥c3 d2 56.h7 d1=£ 57.h8=£ £h1+°)
48…¢f5 49.¢f2 ¢e4 50.¥xf6 d4 51.¥e7 ¢d3 52.¥c5 ¢c4 53.¥e7 ¢b3 [ K. KODINETS ]