My first DVD on the KID with Na6 came out in February, although it was recorded before. In the meanwhile and soon after it some theoretically important positions were tested on the battlefield.
Jakovenko,D (2726) - Bojkov,D (2552) [E94]
26th European Club Cup Plovdiv BUL (3.8), 19.10.2010
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0–0 6.Be2 e5 7.0–0 Na6 8.Be3 Ng4 9.Bg5 Qe8 10.Re1
White makes an useful move and does not commit yet in the center. The options are open, and the d4 pawn might be either exchanged or advanced forward, and there is also a very powerful idea c4-c5 in the area. The opposition of the white rook and black queen on the "e" file is also irritating for the second player. Black has various ways to threat the position. 10...exd4 Simplest, and most probably best. 11.Nd5 White's chances are currently linked with this idea of Huzman from 2005. 11...c6 12.Ne7+ Kh8 13.Nxc8 Rxc8 14.Nxd4 Nf6 15.f3 The latest trend of the line is connected with this interesting Polish idea to hold the center. Radoslav Wojtaszek used it to surprise and defeat Ivan Saric at the ETCC in Novi Sad 2009. The idea though belongs to his country-man G. Gajewski. 15...Qe5 The best reaction, Black must act quickly- [15...Nc5?! 16.Bf1 Qe5 17.Be3 Rfe8 18.Qd2± see Wojtaszek,R (2640)-Saric,I (2573)/Novi Sad SRB 2009/] 16.Be3 d5 17.Qb3 '!' 'Wojtaszek.' White sacrifices a pawn for the initiative. 17...c5 18.Nb5 dxe4 19.Rad1 'with compensation' Up to here we were following the analyzes of the Polish players. This was the first time that Jakovenko chose the line, and I could not exactly remember what I had analyzed. But finally, after investing a large amount of time I played the prepared moves. 19...Rcd8N The rook is moving away from the tempoes after Nb5xa7, and fights for the d file. 20.Nxa7 Rxd1 Deflects the rook from the defence of the bishops. 21.Rxd1 [‹21.Bxd1 Nb4] 21...exf3 22.Bxf3 Ne4
23.Re1 [23.Qxb7 Nd6 24.Qb3 Nxc4 with unclear play, when Black has his share of chances. This is the line that I give in for my DVD on the KID. I believe that Black has good chances on the king's flank.] 23...f5 24.Qxb7 Qxb2? This move leads to a difficult endgame. I missed an important detail in the other main line: [24...Nb4! After the game both Ugra's captain Alexander Khalifman and Jakovenko himself immediately pointed out this move. Jakovenko added: "I could not see salvation for me here". In fact the computer shows that the game is equal, but still it was White who needed to find the good moves: 25.Nc6 I was afraid of: (25.Bxe4 fxe4 26.Nc6 but Jakovenko showed me the nice tacical shot that I missed- 26...Qf5 27.Nxb4 (27.Ne7) 27...Bh6! and Black is winning
I have only considered using the bishop on the other diagonal and this move was simply a black spot for me.) 25...Qxb2 (25...Nxc6 is also good and leads to an equal endgame after: 26.Qxc6 Qxb2 27.Bxe4 Qc3 28.Bf2 Bd4 29.Bxd4+ Qxd4+ 30.Kh1 fxe4=) 26.Bxc5! The only move. The dangers that White experience demonstrates the line: (26.Bxe4? Qc3! 27.Bf2 fxe4 28.Nxb4
28...Qxe1+!! I saw this line, but unfortunately missed that the bishop can be useful on the other diagonal too (see the previous line). 29.Bxe1 Bd4+ 30.Bf2 Rxf2 and White loses the queen or is getting mated.; And if: 26.Nxb4? might lead to a smothered mate after: 26...Bd4! 27.Bxd4+ Qxd4+ 28.Kh1 Nf2+ 29.Kg1 Nh3+ 30.Kh1 Qg1+ 31.Rxg1 Nf2#) 26...Nxc5 27.Qxb4 Bd4+ 28.Kh1 Qxb4 29.Nxb4 Bc3 30.Rb1 Rb8 31.a3 Na6= with full equality.] 25.Qxb2 Bxb2 26.Bxe4 fxe4 27.Nb5±
27...Re8 28.a3 Rd8 29.Bf2 Re8 30.Re2 Bc1 31.Be3 Bxe3+ 32.Rxe3 Nb8 33.Nc3 Nc6 34.Rxe4 Ra8 35.Nb5 Nd4 36.Re7 Nc2 37.Re2 Nd4 38.Nxd4 cxd4 39.Ra2 Ra4 40.Kf2 Kg7 41.Ke2 Kf6 42.Kd3 Ke5 43.h3 g5 44.Ra1 h5 45.Ra2 h4 46.Ra1 Kd6 47.Kxd4 Kc6 48.Ra2 Ra5 49.a4 g4 50.hxg4 Rg5 51.a5 Rxg4+ 52.Ke5 Kb7 53.a6+ Ka7 54.c5 Rg5+ 55.Kf4 Rxc5 56.Kg4 Rc4+ 57.Kh3 Rb4 58.Ra5 Rc4 59.Rg5 Kxa6 60.Rg4 Rc3+ 61.Kxh4 Kb6 62.Rd4 1–0 Despite the fact that my first game did not bring the desired effect, I liked my position and kept on testing it. Two more games were played in the coming couple of months.
(To be continued.)