Chess Tactics: Creeping move: Spassky vs Korchnoi

Boris Spassky - Viktor Korchnoi [E83]
Kiev cf ,CAND Kiev (7), 1968
[Mato]
King Indian Defense
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 0--0 6.Be3 Nc6 7.Nge2 a6 8.Nc1 [8.Qd2 Rb8 9.h4 h5 10.0--0--0 b5] 8...e5 9.d5 Nd4 10.Nb3 Nxb3 [10...c5 11.dxc6 bxc6 12.Nxd4 exd4 13.Bxd4 c5 14.Be3 Rb8 15.Qc2 Be6 16.Bd3 Nd7 17.0--0 Ne5] 11.Qxb3 c5 12.dxc6 bxc6 13.0--0--0 Be6 [13...Qe7 14.Qb6 Bb7 15.g4] 14.Qa3 Ne8 15.h4 f6 16.c5 [16.h5 g5] 16...Rf7 17.Qa4 Qc7 18.Bc4 Bxc4 19.Qxc4 Bf8 20.h5 dxc5 [20...g5] 21.hxg6 hxg6 22.Qe6 Rd8 [22...a5 23.Rh2 Rb8 24.Rdh1] 23.Rxd8 Qxd8 24.Rd1 [24.Rh8+ Kxh8 25.Qxf7] 24...Qe7 25.Qxc6 Nc7 26.Qb6 Qb6 is called a creeping move [26.Nd5 Qe6 27.Qxe6 Nxe6 28.b3 Nd4] 26...Kg7 27.Nd5 Qe6 28.Bxc5 Bxc5 29.Qxc5 Nb5 30.Qe3 Qc6+ 31.Kb1 Nd4 32.Rc1 Qb5 33.Nc7 [33.Rh1 g5] 33...Qe2 34.Ne6+ Kh7 [34...Kg8 35.Rc8+ Kh7 36.Qxe2 Nxe2 37.Ra8 Re7 38.Rxa6] 35.Qh6+ Black resigned Kxh6 36.Rh1# 1--0

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