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.15.f4 Threatening towhichever color weakýÿess develops aswin a piece by 16.h3 and 17.g4.the pawns advance can be exploited by15.e4 15.ýÿg6?? 16.f5.16.Jie4one of the ýÿs.16.W6 16.l:tf4??de4 17.g4 17.'iYe4?? f6.17.Jtg617.1Wh6; 16.'Llf6? 17.'Llg5.t7.h5.18.f5 f6 Black has escaped losing hisg7 18.g5 f8 It is clear thatat the cost of a pawn, but the gameýÿWhite's attack has reached its limit.is decided because White's major piecesThe pawns cannot advance, and bringcoordinate in their attack on the Blacking more pieces to the attack is difficult.ýÿ.19.g6 hg6 20.fg6 ThreateningWhite's next move eliminates the1Wg2-h3-h7.Once again, simple tacticsonly clear chance to do so, e.g.thekeep the initiative.20.f5 The only.l:tel-e3-g3 lift.19.g3 19.'Wh4?!.l::th6move which gives Black any chances.20.'il!Vg3 :tg6.19.iU5 20.Wet ýÿ6?!g222.fl 52t.gf5 g5 JV 23.W520.ýÿd6 21.f7! By exchangingnow delivers"Wf5 Marshall a goodfor ýÿ.White speeds the launching ofpounding with his maj or pieces.his pawn storm.2l.f7 22.'Wf526.24.l:[c5 f6 25.ýÿh5.tle8g4ýÿf6 23.§adl White's pieces are verye6 27.r! ad6 28.h4 ýÿe6 29.h5g5well placed, while Black's are still disor.tieS 30.§f5 1We6 31.§f4d5ganized.23.1Wd6 24.g4 g832.f5, 1-0.Reti might have lost on25.f!e3 d8 26.e2 ýÿd7 27.h3 I Llf7:l 1J i!,h4 29.!le8 Jlgg7 or, in the case of an exchange on e4,28.d330.d7 31.1We3 e7 32.l::[Wg2 e71W a strong advanced center after.fe4.e7 33.1Wf3 ýÿg6 34.fl l:tf7 13.ýÿd2 ýÿdf6 14.f3 ýÿc3 15.335.f5 dB 36.ýÿg3 ýÿh4 37.'fff4f41 16.g4 16.gf4?! ýÿf4 17.e4 de4e7 38.e3 On the principle thatg4 with a very strong attack.18.fe4 tt::lWhite's advantage increases with each16.b6 Preparing to attack the baseexchange.Lasker now proceeds to winof White's pawn chain at e2, and alsowith perfect technique.38.c7planning the.cS break in the center.39.1%e1 e3 40.ýÿe3 b6 41.ýÿe2 17.f1 c7 18.,1ld2 Aa6 19.f2R,c7 42.f3 f8 43.f2 ,hle7 c5 20.act ýÿe6 21.g5 White is de44.l::[ e7 45.f4.a.a5 46.ýÿcl sparate to give his pieces some scope.e7R,b6 47.ýÿb3 f6 48.g3 ýÿf5 21.h5 22.Ah3 g6 23.Ag449.gf5 f5 50.f3.a.c7 51.ýÿc5 g5 24.h4 lag41 Destroying the Whitel::[b6 52.a6 Ad6 53.a4 e6 54.b4 defensive fortress.25.fg4 l0f6 26.f3f5 55.ýÿc5 Af4 56.d7, 1-0 26.it::lh2 f3 27.tt::l tt::l 28.ýÿg2 h2f3 g4with the threat of 29.'ii'g3.Next we see a pawn storm of a differentcolor.( 1 80) Mwange,B-Kamuhangire, SLuzem 19821.f3 f6 2.c4 e6 3.c3 d5 4.cd5ed5 5.d4.a.e7 6.g3 0-0 7.Ag2 Whyis this game in our section on the pawnstorm? enemy on g2 (or g7)normally makes it awkward to launch apawn storm, presenting an obstactle toone's attacking l:ts.Here, however,Black does have the logical plan of using26.g411 27.'ilf5 27.ýÿg4 d7his pawn storm to attack the g3 square.28.'ii'fS (28.ýÿf3 'ii' 29.ýÿf2 l:t£8h37.e8 8.0-0 bd7 9.c2 c6and the push 30.f3 will be devastat10.ýÿe1 Straightforward, and a littlef5ing) 28.'ii' 29.ýÿf5 c8 30.ýÿg5too mechanical.Instead, 10.ýÿf4!? wase7 31.ýÿh5 fS with mate in two bypossible.10.,1ld6 ll.Ad2?1 White32.g6 and 33.f8.27.f6 28.Af4is making the unforgivable mistake ofe8 28.l:tf8! 29.g3 Ac8 30.Ad6playing planlessly.His intention wasd6 31.ifd3 e4 32.g2 lfg6likely to continue 12.l:tadl and33.dc5 bc5 34.ifd5 h8 35.'lld313.cl, to better position his pieces forfig4 36.l:(h1 ýÿg3 37.1Wf3 e2,a central break.In that case l l.ýÿgS0-1would have been a better attempt.11.e4 Again we see this pattern ofAs with each theme we have examined,using the e4 square to attain the initiathese ideas are stillactively discussedtive.12.Ac1?1 12.l:tadl 12.f51 Givat the top levels of chess.ing Black the option of a pawn storm 1 2K Mlddlegame ýÿtrategyJlf5 39.e4 c.tlh7 40.e7 b5(181) Karpov, A-Kasparov, G41.a7 b4 42.c.f1g4, 1-0Moscow 19853.ýÿc3.\le7 4.cd5l.d4 dS 2.c4 e6The next example contains many oftheed5 s.Af4 ýÿf6 6.e3 o-o 7.ýÿf3.pawn structures reviewed earlier AAf5 8.h3 c6 9.g4 il,g6 10.ýÿe5home analysis of this game will reinfd7 ll.g6 fg6 12.ýÿg2 b6force what has been learned.13.0-0 c.tlh8 14.e2 g5 15.Ag3Ad6 16.ffd3 a6 17.b3 ffe7(182) Collas,D-Izsak,Gt8.Ad6 d6Budapest 1994l.d4 f6 2.c4 e6 3.c3 d5 4.cd5ed5 s.Ag5 Ae7 6.e3 c6 7.ýÿd3bd7 s.ec2 o-o 9.ge2 J:teB10.0-0 lOtS ll.abl a5 12.a3 b513.ab4 14.ab4 ýÿd7 15.f3 b816.h3 h5 17.Ae7 ýÿe7 18.e4f4 19.e5 't'!fb6 20.h2 e221.e2.\le8 22.f4 f6 23.ed2a3 24.J:tf3 't'!fa7 2s.nb2 ýÿh526.g4 Aes 27.g2 Ua1 2B.Ah1fe5 29.de5 g6 30.J;lfl f83Lffd4 a3 32.ea7 J:tea719.f41 An aggressive move which re33.d4 c3 34.Ac2 ýÿaa3 35.blf3sults in a space advantage on the KingW3 36.f3 e6 37.c.tlg3 g5 38.f5side for White.19.gf4 20.ef4 Uae8f4 39.b3 na2 40.d4 h521.f5 The attack begins to develop41.gh5 Ah5 42.ýÿ3 al 43.c6strength.The text threatens to estabgl 44.f2 h3 45.we3 netlish an e6 outpost! 2l.c7 22.)V246.d2 e5 47.:h6 f4 48.e6d7 23.g5 ffe7 24.h4 ffe3 Tryinge6 49.h5 d4 50.ktg5 f7to "hollow out" White's space advan51.g6, 1/2-1/2tage with exchanges.25.dl bS26.e3 e3 27.Wh2 Guarding theFinally, let us end our examination ofg3 square to bring his lb into play, butthe Carlsbad structure with a look at aWhite also has a long term plan toGrandmaster versus Master struggle.involve his in the attack.27.b6eB 29.l0fl28.g3 e730
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