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Subject: Re: some positions, incl pawn majority in endgame

Author: Robert Hyatt

Date: 19:29:11 07/17/00

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On July 17, 2000 at 20:26:44, Will Singleton wrote:

>These are from an interesting game/30 on ICC.
>
>21...Qxa2 the best?
>5rr1/p5pp/1pp2k2/q3p1NQ/4P3/1RbP4/P4PPP/5K1R b - -
>
>22.Nxh7+ (how long to avoid?)
>5rr1/p5pp/1pp2k2/4p1NQ/4P3/1RbP4/q4PPP/5K1R w - -
>
>36...Qe6!?  (anyone play this?)
>8/3k1r2/1pp4P/p3p2K/3bP1Q1/5P2/q5P1/7R b - -
>
>after 38.Kg6 (can the black pawns be stopped? if not, what's the proper eval
>score here?)
>8/5r2/1pp1k1KP/p3p3/3bP3/5P2/6P1/7R b - -
>
>


These are crossover positions.  There is interaction between wanting to reach
an endgame with a queen-side majority, and trying to mate your opponent with
his king way up the h file and queens still on.  If you want to play
karpov-like, trading queens is the right idea.  If you want to play kasparov-
like, keeping queens on is the right idea...

all a matter of 'style' here...




>
>[Event "ICC 30 0"]
>[Site "Internet Chess Club"]
>[Date "2000.07.17"]
>[Round "-"]
>[White "PostModernist"]
>[Black "Amateur"]
>[Result "0-1"]
>[ICCResult "White resigns"]
>[WhiteElo "2410"]
>[BlackElo "2412"]
>[Opening "Bishop's opening: Berlin defense"]
>[ECO "C24"]
>[NIC "IG.04"]
>[Time "00:34:44"]
>[TimeControl "1800+0"]
>
>1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Nf3 d5 5.Bb3 Bd6 6.Nc3 d4 7.Ne2 Bg4
>8.Ng3 Bxf3 9.Qxf3 Bb4+ 10.Kf1 Nbd7 11.Nf5 Rg8 12.c3? {questionable}
>12...dxc3 13.bxc3 Bxc3 14.Nd6+ Ke7 15.Nxf7 Qa5 16.Rb1 Nc5
>17.Bg5 Raf8 {not the best, but OK} 18.Qh5? {Bxf6+ better} 18...Nxb3
>19.Rxb3 b6 20.Bxf6+ Kxf6 21.Ng5 21...Qxa2! {Black stumbles into the best move}
>22.Nxh7+? {falls into the trap - RxB better, but White is still in trouble}
>22...Ke7 23.Nxf8 {23.Qg5+ Kd6 24.Qg6+ Kc7 25.Nxf8 Qxb3} 23...Rxf8 24.Qh4+ g5
>25.Qxg5+ Rf6 26.Qg7+ Rf7 27.Qg5+ Kd7 28.f3 Qxb3 29.Kf2 Qc2+ 30.Kg3 Bd4
>31.h4 Qxd3 32.h5 a5 33.h6 Qe3 34.Kg4 Qe2 35.Kh5 Qa2 36.Qg4+ Qe6!?
>{looks like a mistake; but after the queens are gone, can the black pawns
>be stopped?  is this a mistake, or the best move?}
>37.Qxe6+ Kxe6 38.Kg6 b5 39.h7 Rxh7 40.Kxh7 a4 41.g4 Be3 42.Rh5 a3 43.g5 a2
>44.Rh1 {44.g6 a1Q 45.g7 Qa8 46.g8Q+ Qxg8+ 47.Kxg8 c5 48.Rh7 c4 49.Rc7 Kd6}
>44...Bxg5 45.Ra1 c5 46.Rxa2 c4 47.Kg6 Bf4 48.Ra8 Kd7 49.Ra7+ Kc6 50.Ra2 c3
>51.Rc2 b4 52.Kf6 Kc5 53.Kf5 Kc4 54.Ra2 b3 55.Ra4+ Kc5 56.Ra3 c2 57.Rxb3 c1Q
>58.Rd3 Kc4 59.Rd8 Qa3 {white resigns} 0-1



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