Thursday, 7 May 2020

Fundamentals (part 13)

Spanton (147) - Peter L Szabo (141)
Barbican (London) rapidplay 1990
White has just captured on f3 - who stands better?
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Black is a pawn up, has a 2-1 farside majority and has a protected passed pawn ... but the position is dead-equal. The reason it is equal is there is no way for Black to penetrate with his king against correct play.
38...a4!?
The best try. If 38...Ke8, White can completely lock the queenside with 39.a4.
39.Ke3
Other moves also draw, including 39.a3.
39...Ke8 40.Kd2 Kd7 41.Kc3 Kc6 42.Kb4 a3!?
Again, pushing this pawn is Black's best try.
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43.Kxa3??
43.Ka4 draws, as does any move with the f pawn, but the text loses.
43...Kb5 44.Kb2 Ka5
Black is still winning after this, but at some point he needs to play ...Kb4 or ...Ka4.
45.Ka3 Kb5 46.Kb2 Kb4 47.a3+ Ka5
This spoils nothing, but 47...Ka4 is more natural.
48.Kc3 Kb5 49.Kc2 Ka4 50.Kb2 Kb5 ½–½
Black is still winning, eg 51.Kc2 Ka4 52.Kb2 c3+! 53.Kxc3 Kxa3 54.f3 Ka4 55.Kc2 Kb4 56.Kd3 Kb3 57.f4 Kb4 58.Kd2 Kc4 59.Ke3 Kc3 etc.

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