<p> There may be many ways for victory but it is important to take the simplest and the most economical one.<br /><br />In the game which follows, both players are in attacking mode, but it is White’s bishop which is instrumental in weaving a checkmating net.<br /><br />White: Anatoly Karpov (2720) – Black: Miguel Najdorf (2515) <br />Mar del Plata, 1982<br />Queen’s Indian Defence<br />1.d4 Nf6 2.c4 e6 3.Nf3 b6 . Black finachetto’es his bishop on the queen side and this opening is the Queen’s Indian<br />4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.e3 Be7 8.Bb5+ c6 9.Bd3 c5 <br />Black has probably rushed through with this advance! If 9...Nxc3 10.bxc3 c5 <br /><br />10.Nxd5 Bxd5 <br />If 10...Qxd5 11.dxc5 Bxc5 12.Bb5+ Ke7 13.Qe2 a5 14.Bd2 Rd8 15.Bc3 Kf8 16.0–0<br />11.dxc5 bxc5. Things have cleared quite a bit at the centre. If 11...Bxc5 12.b4 Be7 13.Bb2 with slight advantage for White<br />12.0–0 0–0 13.Qc2 <br />White could have given some thought to advance his central pawn 13.e4<br />13. ..h6 14.Bd2 Nd7 15.Bc3. White has trained both his bishops on the king side<br />15. ..Rb8. Black can try 15...Qc7 or even 15. ..Bxf3 to disturb White’s castle but instead chooses to come onto the open file<br />16.e4 Bc6 17.Rac1 Qc7 18.Rfe1 Rfc8 . All the pieces have now taken up positions<br /></p>.<p><br />19.Ba6 Rd8 20.Bf1 a5<br />Black can also think about 20. ..Bd6<br /><br />21.a4 Ra8 22.b3 Nb8 23.Qb2 Bf8 <br />Interesting to note that in all the last three moves, Black has retreated back three of his pieces to the original squares<br />24.Ne5 Be8 25.Re3. Not exactly the right move! If 25.Bc4 Nc6 26.Nxc6 <br />25...f6 26.Nc4 Nc6 27.e5. <br />A good advance!<br />27. .. f5 28.Nd6 Bxd6 29.exd6 Rxd6 30.Bc4 Kh7 31.Rxe6 Rad8 32.Rxd6 Rxd6 33.Bf1. White is worried bout his back rank but he could have also played 33.h3 <br />33...Qb7 34.Qe2 <br />If 34.Bb5!? Bf7 35.Bxg7 Rg6 <br /><br />34...Bf7 35.Qf3 Qd7 36.Ba1 Nd4 37.Bxd4 Rxd4. If 37...cxd4 38.Bd3 g6 39.Qa8 and White is better <br />38.Qc3. If 38.Rxc5 Rd1 39.Qxf5+ Qxf5 40.Rxf5 Bxb3 41.Rc5 Ra1<br />38...Rb4 39.Bb5 Qd4 40.Qc2. White does not want to equalise with 40.Qxc5<br />40...Rxb3 41.Qxf5+ <br />If 41.Qxc5 Qxc5 42.Rxc5 Rb1+ 43.Bf1 <br />41...Bg6 42.Qe6 Rb2 43.Qe1 <br />If 43.Rf1 Bd3 44.Bxd3+ (44.Be8 Qxf2+) 44...Qxd3 45.Qe5 Rb1 And if 43.Qe3 Rc2 is better for Black <br />43...Rc2 44.Rd1 Qf4<br />44...Qf6 works better for White<br />45.Bc6 c4 46.g3 Qf5<br />Perhaps 46...Qf6 is also worth a look <br />47.Rd6 Kh8. If 47...Rb2 48.Kg2 Rb6! 49.Rxg6 Rxc6! 50.Rxc6 Qd5+ 51.Kf1 Qxc6 52.Qb1+ <br /><br />48.Bd5. A good move, working for a checkmating net!<br />48. ..Qg5. If 48...Kh7 49.Rd8 Qg5 50.Bg8+ Kh8 51.Rc8! Rc1 52.Bxc4+ Be8 53.Rxe8+ Kh7 54.Bg8+ Kh8 55.Bb3+ Kh7 56.Bc2+ (56.Bd1 Qd5 57.Qe4+ Qxe4 58.Rxe4 Rxd1+ 59.Kg2 Ra1) 56...Rxc2 (56...g6 57.Bd1 Qd5 58.Qe7+) 57.Qe4+ Qg6 58.Rh8+<br />49.f4 Qh5 50.Rd8+ Kh7 <br /><br />Diagram 1<br />51.Bg8+ This check is necessary to set up the checkmating finish.<br />51. ..Kh8 52.Bf7+ Kh7 53.Rh8 and Black resigned for there is no escaping checkmate after 53.Kxh8 Qe8+ 54.Kh7 Qh8 checkmate.<br /><br /></p>.<p><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Diagram 2<br />White to play and win<br />1.Qxa8 Rxa8. If 1...f5 2.Rd8 <br />2.Rd8+ Rxd8 3.Rxd8 check-mate.</p>
<p> There may be many ways for victory but it is important to take the simplest and the most economical one.<br /><br />In the game which follows, both players are in attacking mode, but it is White’s bishop which is instrumental in weaving a checkmating net.<br /><br />White: Anatoly Karpov (2720) – Black: Miguel Najdorf (2515) <br />Mar del Plata, 1982<br />Queen’s Indian Defence<br />1.d4 Nf6 2.c4 e6 3.Nf3 b6 . Black finachetto’es his bishop on the queen side and this opening is the Queen’s Indian<br />4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.e3 Be7 8.Bb5+ c6 9.Bd3 c5 <br />Black has probably rushed through with this advance! If 9...Nxc3 10.bxc3 c5 <br /><br />10.Nxd5 Bxd5 <br />If 10...Qxd5 11.dxc5 Bxc5 12.Bb5+ Ke7 13.Qe2 a5 14.Bd2 Rd8 15.Bc3 Kf8 16.0–0<br />11.dxc5 bxc5. Things have cleared quite a bit at the centre. If 11...Bxc5 12.b4 Be7 13.Bb2 with slight advantage for White<br />12.0–0 0–0 13.Qc2 <br />White could have given some thought to advance his central pawn 13.e4<br />13. ..h6 14.Bd2 Nd7 15.Bc3. White has trained both his bishops on the king side<br />15. ..Rb8. Black can try 15...Qc7 or even 15. ..Bxf3 to disturb White’s castle but instead chooses to come onto the open file<br />16.e4 Bc6 17.Rac1 Qc7 18.Rfe1 Rfc8 . All the pieces have now taken up positions<br /></p>.<p><br />19.Ba6 Rd8 20.Bf1 a5<br />Black can also think about 20. ..Bd6<br /><br />21.a4 Ra8 22.b3 Nb8 23.Qb2 Bf8 <br />Interesting to note that in all the last three moves, Black has retreated back three of his pieces to the original squares<br />24.Ne5 Be8 25.Re3. Not exactly the right move! If 25.Bc4 Nc6 26.Nxc6 <br />25...f6 26.Nc4 Nc6 27.e5. <br />A good advance!<br />27. .. f5 28.Nd6 Bxd6 29.exd6 Rxd6 30.Bc4 Kh7 31.Rxe6 Rad8 32.Rxd6 Rxd6 33.Bf1. White is worried bout his back rank but he could have also played 33.h3 <br />33...Qb7 34.Qe2 <br />If 34.Bb5!? Bf7 35.Bxg7 Rg6 <br /><br />34...Bf7 35.Qf3 Qd7 36.Ba1 Nd4 37.Bxd4 Rxd4. If 37...cxd4 38.Bd3 g6 39.Qa8 and White is better <br />38.Qc3. If 38.Rxc5 Rd1 39.Qxf5+ Qxf5 40.Rxf5 Bxb3 41.Rc5 Ra1<br />38...Rb4 39.Bb5 Qd4 40.Qc2. White does not want to equalise with 40.Qxc5<br />40...Rxb3 41.Qxf5+ <br />If 41.Qxc5 Qxc5 42.Rxc5 Rb1+ 43.Bf1 <br />41...Bg6 42.Qe6 Rb2 43.Qe1 <br />If 43.Rf1 Bd3 44.Bxd3+ (44.Be8 Qxf2+) 44...Qxd3 45.Qe5 Rb1 And if 43.Qe3 Rc2 is better for Black <br />43...Rc2 44.Rd1 Qf4<br />44...Qf6 works better for White<br />45.Bc6 c4 46.g3 Qf5<br />Perhaps 46...Qf6 is also worth a look <br />47.Rd6 Kh8. If 47...Rb2 48.Kg2 Rb6! 49.Rxg6 Rxc6! 50.Rxc6 Qd5+ 51.Kf1 Qxc6 52.Qb1+ <br /><br />48.Bd5. A good move, working for a checkmating net!<br />48. ..Qg5. If 48...Kh7 49.Rd8 Qg5 50.Bg8+ Kh8 51.Rc8! Rc1 52.Bxc4+ Be8 53.Rxe8+ Kh7 54.Bg8+ Kh8 55.Bb3+ Kh7 56.Bc2+ (56.Bd1 Qd5 57.Qe4+ Qxe4 58.Rxe4 Rxd1+ 59.Kg2 Ra1) 56...Rxc2 (56...g6 57.Bd1 Qd5 58.Qe7+) 57.Qe4+ Qg6 58.Rh8+<br />49.f4 Qh5 50.Rd8+ Kh7 <br /><br />Diagram 1<br />51.Bg8+ This check is necessary to set up the checkmating finish.<br />51. ..Kh8 52.Bf7+ Kh7 53.Rh8 and Black resigned for there is no escaping checkmate after 53.Kxh8 Qe8+ 54.Kh7 Qh8 checkmate.<br /><br /></p>.<p><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Diagram 2<br />White to play and win<br />1.Qxa8 Rxa8. If 1...f5 2.Rd8 <br />2.Rd8+ Rxd8 3.Rxd8 check-mate.</p>
