Boleslavski,Isaak - Keres,Paul [C97]

Canidates tournament Zuerich, 1953

Boleslavski Keres

Bibliography: Keres in "111 Sowjetische Meisterpartien", Sportverlag Berlin 1956 Bronstein: Zürich 1953, Sportverlag 1991 Encyclopedia C, Schachinformator 1997

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2

The start position of the Tshigorin-System. Black now plays a rare continuation

12...Rd8?!

Boleslawski-Keres 1953

[12...Bb7 13.dxe5 dxe5 14.Nh2 Rad8 15.Qf3 Bc8 16.Ndf1 Nc4 17.Ng3 g6 18.b3 Na5 19.Bh6+/= Rfe8 20.Nhf1 Kh8 21.Bg5 Ng8 22.Bxe7 Qxe7 23.Ne3 Qf6 24.Qe2 Bb7 25.Rad1 Ne7 26.Rd3 Rxd3 27.Qxd3 Nec6 28.Nd5 Qd6 29.Qf3 Kg7 30.Rd1 Rd8 31.Qg4 Qe6 32.Qg5 Kh8 33.Qh6 f6 34.Rd3 Qf7 35.Rf3 Rd6 36.Qe3 Ne7 37.Qxc5 Rd7 38.Nxf6 Rd2 39.Nd5 Nf5 40.Nxf5 Rxc2 41.Nh6 1-0 Stein,L-Bannik,A Moscow 1961USSR-ch;

12...Re8 13.b4 cxb4 14.cxb4 Nc6 15.Bb2 Nxb4 16.Bb3+/= Nd3 17.Bxf7+ Kf8 (17...Kxf7 18.Qb3+ Nd5 19.Qxd3 Nf4 20.Qb3+ Be6 21.d5 Bd7 22.Bxe5 dxe5 23.d6+ Be6 24.Nxe5+ Kg8 25.Qxe6+ Nxe6 26.dxc7 Bf6 27.Ndf3 Nxc7 28.Rac1 Rxe5 29.Rxc7 Re6 30.e5 Rae8 31.Rd1 Bxe5 32.Nxe5 Rxe5 33.Rdd7 Rg5 34.f4 Rg6 35.Kf2 h5 36.g3 Re4 1/2-1/2 Jansa,V-Kostro,J Vrnjacka Banja 1967) 18.Bxe8 Nxb2 19.Qb1 Na4 20.Rc1 Nc5 21.dxc5 Nxe8 22.cxd6 Qxd6 23.Qb2 Bf6 24.a4 Rb8 25.Rab1 Be6 26.Nc4 Qd3 27.Qb4+ Be7 28.Ncxe5 Bxb4 29.Nxd3 Ba3 30.Rc6 Bg8 31.Rxa6 Rd8 32.axb5 Rxd3 33.b6 Bd6 34.b7 Bb8 35.Ra8 1-0 Tal,M-Gurgenidze,B Baku 1961USSR-ch;

12...Bd7 13.Nf1 Nc4 (13...Rfe8 14.b3 g6 15.Bg5 Nh5 16.Bxe7 Rxe7 17.Ne3 Nf6 18.Rc1 Nb7 19.b4 c4 20.a4 Rae8 21.axb5 axb5 22.Ra1 Bc6 23.Ra6 Qc8 24.d5 Bd7 25.Nh2+/- Kg7 26.Qf3 Rf8 27.Rea1 Ng8 28.Qg3 Kh8 29.f4 exf4 30.Qxf4 Rfe8 31.Nf3 Kg7 32.Nd4 f5 33.Ra8 Qxa8 34.Rxa8 Rxa8 35.exf5 Re5 36.Ng4 Rae8 37.f6+ Kf7 38.Nh6+ Nxh6 39.Qxh6 Kxf6 40.Qxh7 1-0 Stein,L-Matanovic,A Tel Aviv 1964) 14.Qe2 Rfe8 15.b3 Nb6 16.dxe5 dxe5 17.c4 Nh5 18.Bd2 Rab8 19.a4 bxc4 20.bxc4 Nc8 21.Ne3 Nf4 22.Qf1 Ne6 23.Nd5+/= ; 12...Nc6 13.d5 Nd8 14.a4+/= C 98;

12...cxd4 Main line 13.cxd4+/= C 99]

13.Nf1

[13.b3 Bd7 14.d5 c4 15.b4 Nb7 16.a4 a5 17.Ba3+/= axb4 18.Bxb4 Nc5 19.axb5 Bxb5 20.Bxc5 Qxc5 21.Ba4 Nd7 22.Bxb5 Qxb5 23.Rb1 Qc5 24.Rb4 Nb6 25.Qc2 Ra6 26.Reb1 Rda8 27.g3 Bd8 28.Kg2 g6 29.R1b2 Kg7 30.h4 h5 31.Nh2 Na4 32.Ra2 Nb6 33.Rxa6 Rxa6 34.Nhf1 Ra1 35.Ne3 Re1 36.Ndxc4 Nxc4 37.Rxc4 Qb5 38.Rb4 Qa6 39.Ra4 Qb5 40.Rb4 Qa6 41.Ra4 Qb5 42.c4 Qc5 43.Ra6 Bb6 44.Qb2 Ba7 45.Qd2 Rb1 46.Rc6 Qd4 47.Nf5+ gxf5 48.Qg5+ Kh7 49.Qxh5+ Kg7 50.Qg5+ Kh7 51.Qxf5+ Kg7 52.Rxd6 Rb8 53.h5 1-0 Adams,M-Torre,E Bled 2002]

13...d5

! by Keres in his notes.

14.exd5?!

[14.Ng3 dxe4 15.Nxe5 cxd4 16.cxd4 Be6 17.Nxe4 Rac8 18.Re2 Nc4 19.Nf3 Bd5 20.Nxf6+ Bxf6 21.Be4 Bxe4 22.Rxe4 Qc6 23.Re2 h6 24.Bf4 Qb6 25.Be3 Qc7 26.Qd3 Ne5 27.Nxe5 Bxe5 28.Qe4 Bd6 29.Rc1 Qa5 30.Rxc8 Rxc8 31.b3 Qc3 32.g3 Qc7 33.Kg2 Qd7 34.Re1 a5 35.Qd5 Rd8 36.Rc1 a4 37.Qc6 axb3 38.Qxd7 Rxd7 39.Rc8+ Kh7 40.axb3 Rc7 41.Rb8 b4 42.Rb6 Be7 43.Bd2 Rd7 44.Bxb4 Bf6 45.Bc5 Bxd4 46.Rd6 Rxd6 47.Bxd6 Kg6 48.Kf3 f5 49.b4 Kf6 50.Bc5 Be5 51.Ke3 Ke6 52.Bd4 Bd6 53.Bxg7 Bxb4 54.Bxh6 Bc5+ 55.Kf3 Bd4 56.Be3 Be5 57.Ke2 Kd5 58.Kd3 Bb2 59.f4 Ba3 60.Bd4 Bb4 61.Bc3 Bc5 62.g4 Bd6 63.Ke3 Ke6 64.Be1 Kf6 65.Bg3 Ba3 66.g5+ Kg6 67.Kd4 Bd6 68.Kd5 Bc7 69.Ke6 Bb6 70.h4 Bd8 71.Be1 Bc7 72.Bd2 1-0 Gligoric,S-Milic,B/Zagreb 1953/MCD (72);

14.Nxe5 Nxe4 (14...dxe4 Keres 15.Bxe4 Nxe4 16.Rxe4 Bb7© ) 15.Ng3 Nxg3 16.fxg3 Bd6 17.Qd3 f5 18.Bf4 Nc4 19.Qf3 Bxe5 20.Bxe5 Qf7 21.dxc5 Nxb2 22.g4 g6 23.Bd4 fxg4 24.Qg3 Nc4 25.Qh4 Be6 26.Rf1 Bf5 27.hxg4 Nd2 28.gxf5 1-0 Unzicker,W-Kokkoris,H/Varna 1962/MCD (28);

14.dxe5!? dxe4 Keres: not dangerous! (14...Nxe4 15.Ne3 Be6 16.Qe2+/= ) 15.N1d2! exf3 16.exf6 Bxf6 17.Qxf3 Be6 18.Ne4 Be7 19.Ng5!? (19.Qh5!? h6 20.Ng3 (20.Bxh6 gxh6 21.Qxh6 Bf5 22.Nf6+ Bxf6 23.Bxf5 Bg7 ) ) 19...Bxg5 20.Bxg5 Re8 21.Be4 Rac8 22.Bf4 Qe7 23.Qg3+/- ]

14...exd4 15.cxd4 Nxd5 16.Qe2?!

[16.Ng5!? g6! 17.Qf3 (17.Nxh7 cxd4 ) 17...f5 18.g4+/= ]

16...Bb7! 17.Ng3

[17.dxc5 Bxc5=/+ ;

17.Bg5 Bxg5 18.Nxg5 h6 19.Qd3 g6 20.Ne4 cxd4 21.Rac1-/+ ;

17.Ng5 g6 18.Nxh7 Nc6-+ (Keres 18...Qc6?! 19.Qf3! ) ]

17...cxd4 18.Nxd4

[18.Nf5!? Bb4=/+ (18...Bf6 19.Nh6+ gxh6 20.Qe4+/- ) 19.Rd1 Re8 20.Qd3 Nf6 21.N3xd4 Nc4 ]

18...g6

prevents white attacking ideas

19.Bh6 Bf6 20.Nb3

[20.Rad1 Nf4 21.Bxf4 Qxf4 22.Ndf5 Rxd1 23.Bxd1 Bc6-/+ ]

20...Nc4!

Boleslawski-Keres 1953

21.Ne4 Bxb2 22.Nbc5

A practical decision. As rook moves leace black with an winning position too, White decides to exchange rook vs. bishop and hope for counter chances on the dark squares. [22.Rab1 Bg7-+ (22...Nc3 23.Nxc3 Bxc3 24.Red1 Na3 25.Rbc1 Nxc2 26.Qxc2 Rxd1+ 27.Qxd1 b4 28.Bd2-/+ ) ]