(1) Yakir,L - Skegina,K [A88]
URS-chT Moscow, 1959



1.d4 f5 2.c4 g6 3.Nf3 Nf6 4.Nc3 Bg7 5.g3 0-0 6.Bg2 d6 7.0-0 c6 8.Qc2 Kh8 9.b3 Na6 10.Bb2 Nh5 11.Rfd1 f4 12.d5 Bf5 13.Qd2 c5 14.Nh4 Bd7 15.Ne4 Qc8 16.Bxg7+ Kxg7 17.Ng5 Nc7 18.Qd3 Qe8 19.Bf3 Nf6 20.gxf4 Bg4 21.Bxg4 Nxg4 22.e3 Nh6 23.Kh1 Nf5 24.Nxf5+ Rxf5 25.Rg1 Qf8 26.Rg3 Qf6 27.Rag1 Rf8 28.Rh3 Rh8 29.Ne4 Qb2
Diagram

30.Nxd6
A nice move, threatening Qxf5 (the Rf5 is pinned)

30...Rff8
Taking the Rf5 out of harm's way, but...

31.Rxh7+
Removing the protection of the g6-pawn.

31...Rxh7 32.Qxg6+ Kh8
Coach's first law... when the king can't move, all we need is check

33.Nf7+! Rhxf7
[33...Rfxf7 34.Qg8# ]

34.Qh6+
[34.Qh6+ Rh7 35.Qxf8# ] 1-0