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.1 1.N c712 Nb3de13 deO n 13 B x e4?! B l a c k gai n s the e d ge a fte r 13 N f6.•13.eSTo secure a foothold i n t h e center.1 4 QaSNe61 5 f4Wh i te re a l i zes he retains an e d ge 1n t h e e n d i n g on1 5 Q x a5 1 6 N x aS.• • •1 5.f61 6 N f3Qb6G i v i n g up the t w o Bishops with 16 B x f3 i s not adÂ.•v i sable as a fter 17 B x f3 t h e K B c a n reach a fine positiono n g4.17 B d2B u t not 1 7 N h 4? because 1 7 B b 4! forces t h e b e t t e r•.e n d i n g for B l a c k a fter 1 8 Qxb6, axb6!.1 7.N e cS1 8 N h 4R fe 81 9 Q c 3A fte r 1 9 Rae 1 , N x b3 2 0 a x b3, Q x aS 2 1 B x aSch a n ces would be about e v e n.1 9 -.B f8So far as i n the game Gutman- Farago, B ru x e lles I I1 9 8 6 , w h i c h con t i n u e d 2 0 Rae 1 , R a d8 2 1 g4!, B f7 2 2 gS!,N x b3 (!) (The only m ove; on 22.ef 23 gf! fol l o w e d by Nf5C h apter T w o: Keres V ariation63is p o w e r f u l , while o n 22.Na4, 23 Qg3 is strong) 2 3 axb3,Qd4 2 4 g f, N x f6 2 5 Q x d4, exd4 and now 2 6 B f3 l e a v e sWh i t e w i t h a slight a d v a n tage.l ib( 1 N f3 , d 5 2 g3 , c6 3 B g2 , B g4 )I n t h i s l i n e w e e x a m i n e t h e d e fe nsi v e syste m w i t hN g e 7 i n stead o f the m o re u s u a l N g f6 w h i ch w e a n a l y ze d i nI l a.B l a c k d e v e lops h i s K B to d6 f o l l o w e d b y Nge7.Wi ththe K N on f6 the B d6 i s e x posed a ft e r e4 to the e v e n t u a ltactical t h re a t e4-e5; h o w e v e r w i th N ge7 t h e i d e a i s f u l l yp l a y ab le.4 0 - 0Anothe r m o v e o f p r o m i se is t h e i m m e d i at e 4 h3.T h e g a m e Ermolinsky - E h lvest, Kuib y s h e v 1986, con t i n u e d4.B x f3 ( 4.Bh5 see m s m o r e sol i d ret a i n i n g t h e B i s h op p a i rf o r at l e ast a w h i le) 5 B x f3, N d7 6 d3, N g f6 7 e 4 , d e 8 de,e5 (st a k i n g o u t ce n t r a l space; 8.e6 i s too pass i v e) 9 N d2,B c5 1 0 N c4, 0 - 0 11 0-0, Qe7 1 2 Qe2 (Anot h e r st a n d a r dm o v e h e re i s 1 2 a 4 t o g a i n space a n d d i scou rage.b 5)12.Qe6 13 Kg2 , b5 1 4 Ne3, Nb6 15 b3 (I f 1 5 Nf5 t h e nB l a c k can t r y 1 5.Qc4 w h i le 15 Bg4 is a n s w e re d b y1 5.Nxg4 1 6 hxg4, B x e3 1 7 Bx e3, Qc4 w i t h reaso n ablecou n t e r p l a y) 1 5.a5 1 6 N f5 a n d Wh i te ' s occu p a t ion of f5p l u s h i s t w o Bishops g i v e h i m the a d v a n tage.For t h e restof t h e game see New In Chess #6, page 430.I n the game Kogan - Seirawan, US 1985, B l a c k essayed a n u n u s u a l p l a n - - 4 0·0, e6 5 d3 , B x f3 (Bl a c k g i v es upKing's I n d i a n Attackt h e B i shop pair w i thout be i n g p rovoked b y h2-h3, as hew an ts to e x c h a n ge be fore Wh i t e p l a y s Nbd2 i n w h i c h caseWh i te cou l d a n s w e r.Bxf3 w i t h Nxf3.Howe v e r t h e i d e a i sa b i t arti fici al.) 6 B x f3 , N f6 7 N d2 , Nbd7 8 e4, B cS 9 Qe2,de ( O n 9.0- 0 1 0 e5 i s good for Wh i te) a n d now, i n st e a d o ft h e a c t u a l l y p l a y e d 1 0 de, Wh i t e retai n s a s l i g h t p l u s w i t h1 0 B x e4 keep i n g t h e K B ' s d i agonal ope n--see I l l u s t r a t i v eG a m e # 1 8.4.Nbd75 d3e6H e re, S.eS gi ves Wh i te a p l u s a fter 6 e4, de 7 de,B cS 8 h3, B h S 9 N b d 2 , f6?! (Be t t e r i s 9.Ngf6) 1 0 c3 , B f71 1 N h 4 as i n the g a m e Korc h no i · Q i J i ngxuan, T h essalo n i k iO l y m p i a d 1984.6 Nbd2Bd67 e4I n te resti n g i s 7 h3, B h S 8 Q e 1 , Ne7 9 b3, 0-0 10B b 2 , aS 1 1 a4, bS 12 e4, ba 13 R x a4, cS 1 4 N h 4, Nb6 1SR a 1 , N c6 1 6 f4, Be7 1 7 N d f3, B x f3 1 8 N x f3 , a4 w i t h app r o x i m ate e q u a l i t y , from the game Portisc h - S myslov,H astings 1970.Also i n terest i n g w as the game B u t noris ÂKeres, U S S R 1972, w h i ch con t i n u e d 7 b3 , N e 7 8 B b 2 , 0 - 0 9c4, aS 10 a3, bS 1 1 Q c2 , eS w i t h e q u a l chan ces.7 ••.N e 78 b 3Wh i te hopes for good acti v i t y for h i s QB o n t h e a 1 ·h8 d i agon al
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