<p>Miscalculations most often are a result of missing out moves and can bring an abrupt end to the game which might appear balanced. Generally, lack of time or at times assuming that a sequence is forced lead to a player going awry in his train of thoughts.<br /><br /></p>.<p>In the game which follows, White appears to be crumbling while approaching the first time control. A few inaccurate moves pushes White on to the backfoot and then he probably misses capture by a queen in a sequence where he wrongly assumes a few forced exchanges.<br /><br />White: Lars Bo Hansen (2560) – Black: Joerg Hickl (2570)<br />Polanica Zdroj, 1993<br />Irregular Queen Pawn Opening<br />1.d4 .d6 2.Nf3 Bg4 3.e4 Nf6 4.h3<br />If 4.Nc3 e6 5.h3 Bh5 6.Bd3 Be7 7.Be3 c6<br />4...Bh5 5.Bd3<br />5...e6 6.c4. White can play 6.Nc3<br />6. ..Nc6<br />Already not a very popular opening, the novelty comes in rather early Previous continuations was6...Be7 7.Nc3 Nc6 8.Be3 0–0 9.Qe2 Bg6 10.Rd1 d5 11.cxd5 exd5 12.e5 Ne4 13.0–0 Qd7 14.Bc1 f5 15.Nxd5 <br />7.Be3. White also had more interesting looking options like 7.g4 Bg6 8.Nc3 d5 9.cxd5 exd5 10.e5 Ne4<br />7...Bxf3 8.Qxf3 g6. Black can aim for equality with 8. ..e5 9.d5 Nd4<br />9.Na3 Bg7 10.Nc2 0–0 11.0–0 a5 12.Qe2<br />White can retreat all the way back to 12.Qd1 Qe7. If 12.a3 a4 13.Rad1 Nd7<br />12...Nd7. Black wants to push the central pawn to e5<br />13.f4. An aggressive pawn push? White can play the solid 13.Qd2 or 13.Rad1<br />13...Nb4<br />Black can look at 13...e5 14.d5 (14.fxe5 dxe5 15.d5 Nd4 16.Qf2 Nc5 17.Rad1 f5) 14...Nd4 15.Nxd4 exd4 16.Bd2 Nc5<br />14.a3<br />If 14.Nxb4 axb4 15.Qd2 (15.f5 15...exf5 16.exf5 c5) 15...c5 16.dxc5 Nxc5<br />14...Nxd3. If 14...Nxc2 15.Bxc2 c5 16.Qd2 cxd4 17.Bxd4 Bxd4+ 18.Qxd4 Qb6<br />15.Qxd3 a4. Worth a look is the aggressive looking 15. ..f5<br />16.Rad1 Qe7 17.Bf2<br />If 17.f5 exf5 18.exf5 Rae8<br />17...Rfd8 18.Qe2 Nb6 19.Ne1<br />White could have tried 19.c5 Nd7 (19...dxc5 20.dxc5 Nd7 21.c6 bxc6 22.e5) 20.c6 bxc6 21.Nb4 Nb8 22.Qc2<br />19...Bh6 20.Bg3. If 20.Be3 f5<br />20...Re8 21.Nf3 f5 22.Bh4. If 22.exf5 exf5 And if 22.e5 d5 23.c5 Nc4 24.Nd2<br />22...Qd7 23.c5<br />If 23. exf5 23...exf5<br />23...fxe4 24.Nd2<br />If 24.Qxe4 Nd5 25.Bg5 Bg7<br />24...e3<br />If 24...Nd5 25.Nxe4 Rf8 26.Bg5 Bg7<br />25.cxb6 exd2 26.bxc7 Qxc7 27.Rxd2 Rac8 28.Qf3 Rf8 29.Qe4 Rce8 30.Bg3 Qb6 31.Kh1 d5 32.Qd3 Qa6 33.Qf3<br />If 33.Qxa6 bxa6 34.Rc2 Rc8 35.Rfc1 Rxc2 36.Rxc2 Bxf4 37.Bxf4 Rxf4 38.Rc6 Kf7<br />33...Rf6 34.Re2<br />If 34.Rdf2 Ref8 35.Qe3<br />34...Ref8 35.Qe3<br />Not the right move. Better is 35.Qg4 keeping threats alive on King-side<br />35...g5 36.Ref2<br />Another wrong move! White can try 36.f5 or 36.Bf1<br />36. ..gxf4 37.Bxf4<br />This time not just a wrong move but a big blunder in apposition which has been deteriorating!<br />37. ..Rxf4 38.Qg3+<br />If 38.Rxf4 Qxf1+<br />38...Kh8 39.Rxf4<br /><br />Diagram 1<br /><br />39. ..Qxf1+<br />White probably may have missed this move during calculations, especially since the first time control was approaching<br />40.Rxf1 Rxf1+<br />If 40...Rxf1+ 41.Kh2 Bf4<br />0–1<br /><br />Diagram 2<br /><br />Black to play and checkmate<br /> 1... Bg2+ 2.Ke1 Bf2 checkmate.<br /><br /><br /></p>
<p>Miscalculations most often are a result of missing out moves and can bring an abrupt end to the game which might appear balanced. Generally, lack of time or at times assuming that a sequence is forced lead to a player going awry in his train of thoughts.<br /><br /></p>.<p>In the game which follows, White appears to be crumbling while approaching the first time control. A few inaccurate moves pushes White on to the backfoot and then he probably misses capture by a queen in a sequence where he wrongly assumes a few forced exchanges.<br /><br />White: Lars Bo Hansen (2560) – Black: Joerg Hickl (2570)<br />Polanica Zdroj, 1993<br />Irregular Queen Pawn Opening<br />1.d4 .d6 2.Nf3 Bg4 3.e4 Nf6 4.h3<br />If 4.Nc3 e6 5.h3 Bh5 6.Bd3 Be7 7.Be3 c6<br />4...Bh5 5.Bd3<br />5...e6 6.c4. White can play 6.Nc3<br />6. ..Nc6<br />Already not a very popular opening, the novelty comes in rather early Previous continuations was6...Be7 7.Nc3 Nc6 8.Be3 0–0 9.Qe2 Bg6 10.Rd1 d5 11.cxd5 exd5 12.e5 Ne4 13.0–0 Qd7 14.Bc1 f5 15.Nxd5 <br />7.Be3. White also had more interesting looking options like 7.g4 Bg6 8.Nc3 d5 9.cxd5 exd5 10.e5 Ne4<br />7...Bxf3 8.Qxf3 g6. Black can aim for equality with 8. ..e5 9.d5 Nd4<br />9.Na3 Bg7 10.Nc2 0–0 11.0–0 a5 12.Qe2<br />White can retreat all the way back to 12.Qd1 Qe7. If 12.a3 a4 13.Rad1 Nd7<br />12...Nd7. Black wants to push the central pawn to e5<br />13.f4. An aggressive pawn push? White can play the solid 13.Qd2 or 13.Rad1<br />13...Nb4<br />Black can look at 13...e5 14.d5 (14.fxe5 dxe5 15.d5 Nd4 16.Qf2 Nc5 17.Rad1 f5) 14...Nd4 15.Nxd4 exd4 16.Bd2 Nc5<br />14.a3<br />If 14.Nxb4 axb4 15.Qd2 (15.f5 15...exf5 16.exf5 c5) 15...c5 16.dxc5 Nxc5<br />14...Nxd3. If 14...Nxc2 15.Bxc2 c5 16.Qd2 cxd4 17.Bxd4 Bxd4+ 18.Qxd4 Qb6<br />15.Qxd3 a4. Worth a look is the aggressive looking 15. ..f5<br />16.Rad1 Qe7 17.Bf2<br />If 17.f5 exf5 18.exf5 Rae8<br />17...Rfd8 18.Qe2 Nb6 19.Ne1<br />White could have tried 19.c5 Nd7 (19...dxc5 20.dxc5 Nd7 21.c6 bxc6 22.e5) 20.c6 bxc6 21.Nb4 Nb8 22.Qc2<br />19...Bh6 20.Bg3. If 20.Be3 f5<br />20...Re8 21.Nf3 f5 22.Bh4. If 22.exf5 exf5 And if 22.e5 d5 23.c5 Nc4 24.Nd2<br />22...Qd7 23.c5<br />If 23. exf5 23...exf5<br />23...fxe4 24.Nd2<br />If 24.Qxe4 Nd5 25.Bg5 Bg7<br />24...e3<br />If 24...Nd5 25.Nxe4 Rf8 26.Bg5 Bg7<br />25.cxb6 exd2 26.bxc7 Qxc7 27.Rxd2 Rac8 28.Qf3 Rf8 29.Qe4 Rce8 30.Bg3 Qb6 31.Kh1 d5 32.Qd3 Qa6 33.Qf3<br />If 33.Qxa6 bxa6 34.Rc2 Rc8 35.Rfc1 Rxc2 36.Rxc2 Bxf4 37.Bxf4 Rxf4 38.Rc6 Kf7<br />33...Rf6 34.Re2<br />If 34.Rdf2 Ref8 35.Qe3<br />34...Ref8 35.Qe3<br />Not the right move. Better is 35.Qg4 keeping threats alive on King-side<br />35...g5 36.Ref2<br />Another wrong move! White can try 36.f5 or 36.Bf1<br />36. ..gxf4 37.Bxf4<br />This time not just a wrong move but a big blunder in apposition which has been deteriorating!<br />37. ..Rxf4 38.Qg3+<br />If 38.Rxf4 Qxf1+<br />38...Kh8 39.Rxf4<br /><br />Diagram 1<br /><br />39. ..Qxf1+<br />White probably may have missed this move during calculations, especially since the first time control was approaching<br />40.Rxf1 Rxf1+<br />If 40...Rxf1+ 41.Kh2 Bf4<br />0–1<br /><br />Diagram 2<br /><br />Black to play and checkmate<br /> 1... Bg2+ 2.Ke1 Bf2 checkmate.<br /><br /><br /></p>
