Lawrence Day vs Michael Woodhams (1967)

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Lawrence Day vs Michael Woodhams
Wch U20 qual-A (1967), Jerusalem, rd 5, Aug-??
Hungarian Opening: Symmetrical Variation (A00) · 1-0

ANALYSIS [x]

FEN COPIED

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Sep-12-11		Philistine: This is a highly instructive game; I'm surprised no one has commented on it yet. Day creates white square weaknesses around his opponent's king and then does an exchange sac for the white bishop to increase his advantage on the light squares. He subsequently increases the pressure, shores up the queenside, and then trades down into a winning endgame. With the clear positional ideas, this is the kind of game that goes a long way in helping me improve.

Jun-01-12		Abdel Irada: I'd have to spend some time on this, but I'm not convinced that white's exchange sac was sound. Even with black's unenterprising defense, he had to abandon the attack and retrench on several occasions; and it is only because black essentially decided to stop fighting that he eventually won.

Jun-01-12		DanielBryant: I noticed the date/location of this game, and I wonder when in 1967 this tournament was, as that was the year of the Six Days' War.

Jun-01-12		GreenLantern: You guys are right in that this is an instructive example of how to convert a winning position into a win. At white move 43, Black has too many weaknesses (b3, d6, h7) and White has a potential passed pawn (h2). click for larger view Houdini's top 5 moves all have similar themes in seeking to exploit the weaknesses (except maybe h3 to give his King more room). <43.Bxh7> looks more like a simplification than a true sac, and one that should appeal to a human player wanting to avoid complications. [+20.96] d=28 43.Be6 Rf8 44.a4 e4 45.dxe4 Rfg8 46.Nxg8 Qxh4 47.Rxh4 Rb7 48.Nh6 Kg7 49.Nf5 Kf6 50.Nxd6 Rb6 51.Rh6 Ke5 52.Nf7 Kf4 53.d6 Kxe4 54.d7 Rb8 55.d8Q Rxd8 56.Nxd8 Ke3 57.Rf6 Kd3 58.Nc6 h6 59.Nxa5 Kc2 60.Rf2 Kd3 61.Nxb3 (1:13:29) 31993814kN [+10.15] d=28 43.Bxh7 Rxh7 44.Rxh7 Rxh7 45.Qxh7 Qxh7 46.Nxh7 Kxh7 47.Kg2 Kg6 48.Kf3 Kg5 49.Ke4 Kg4 50.h3 Kxh3 51.Kf5 Kg3 52.Ke6 Kf3 53.Kxd6 Ke2 54.Kxe5 a4 55.d4 Kd1 56.dxc5 Kc2 57.d6 Kxb2 58.d7 Kxa3 59.d8Q b2 60.Qd3 Ka2 61.c6 b1Q 62.Qxb1 Kxb1 63.c7 a3 64.c8Q a2 65.Qb7 Kc1 66.Qa6 Kb2 67.Qb6 Kc2 68.Qd4 Kb1 69.Qd3 Kb2 70.Qd4 Kb1 71.Qd3 (1:13:44) 32094534kN [+10.54] d=27 43.a4 Rxf6 44.Qxf6 Qxf6 45.Rxf6 Rg5 46.Be4 Rg8 47.Rxd6 Kg7 48.Rd7 Kf6 49.Bxh7 Rc8 50.Ra7 Rh8 51.Rc7 Kg5 52.Kg2 Rf8 53.Rxc5 Ra8 54.Be4 Kf4 55.Kf2 Kg5 56.d6 Rh8 57.Rxa5 Kf6 (1:02:46) 26909084kN [+8.90] d=27 43.h3 a4 44.Bxh7 Rxh7 45.Rxh7 Rxh7 46.Qxh7 Qxh7 47.Nxh7 Kxh7 48.Kg2 Kg7 49.Kf3 Kg6 50.Ke4 Kg5 51.h4 Kxh4 52.Kf5 Kg3 53.Ke6 Kf3 54.Kxd6 Ke2 55.Kxc5 Kxd3 56.d6 Kc2 57.d7 Kxb2 58.d8Q Kxa3 59.Qd2 b2 60.Qb4 Ka2 61.Qxa4 Kb1 62.Qa8 Kc2 63.Qe4 Kc1 64.Qe1 Kc2 65.Qe2 Kb3 66.Qd3 Ka2 (1:13:44) 32094534kN [+8.83] d=27 43.Be4 Rxf6 44.Qxf6 Qxf6 45.Rxf6 Rd7 46.Rh6 Kg8 47.Kg2 a4 48.Rxh7 Rd8 49.Ra7 Kh8 50.Rxa4 Kg7 51.Ra6 Kf7 52.a4 Ke7 53.a5 Rg8 54.Kf2 Rf8 55.Ke3 Rf1 (1:08:21) 29219347kN

Jun-01-12		IMlday: The opening was unsatisfactory for Black since the f5-wedge allows a slow but inexorable attack. White has more room for attacking pieces than Black has for defenders, so he gets out-numbered and reduced to progressively passive defence. A somewhat similar 'Chigorian-technique' middlegame was L Day vs I Shtern, 1985 <DanielBryant> The war had just ended. Many countries boycotted that world junior.

Jun-01-12		Abdel Irada: I retract my comment, which was made with undue haste. White's attack was stronger than it appeared. Congratulations on a creative opening and a well-conducted assault.

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