Report round 5

By Kedem Gutkind

Today was another bloody day at the office as only a single game was drawn. After 4 rounds Reinderman was still on 100% and today he had the white pieces against Feuerstack; who has been having a decent tournament so far being on +1. As we have might have concluded from the previous rounds in this tournament having the white pieces does not mean you are safe. Reinderman soon experienced this in person.

The 5th round was played in the Stadsarchief. Photo: Bas Beekhuizen

Reinderman,Dimitri (2582) – Feuerstack,Aljoscha (2459)

1.c4 c5 2.e3 Nf6 3.Nf3 g6 4.d4 cxd4 5.exd4 d5 6.cxd5 6.Nc3 Is the more common move

6…Bg7 7.Bb5+ Nbd7 7…Bd7 This move would be inaccurate as white can retreat 8.Bc4 Suddenly the black bishop on d7 finds itself in an awkward position as it blocks the black queen and the knight on b8 8…Bf5 Now white has won a tempo in comparison to a position in which he would have played Bc4 right away

8.d6 exd6 9.0–0 0–0 10.Nc3 a6 11.Bxd7 Reinderman is the first player with a rating over 2300 to go for this exchange

11.Bd3 Has been played before

11…Bxd7 12.Bg5 Qa5 13.d5 b5 14.Qd2 b4 15.Bxf6 Bxf6 16.Ne4 Bg7 17.Nxd6° White managed to win a pawn, but black has more than enough compensation with his bishop pair and his ability to easily attack and blockade the d-pawn

17…Qc7 18.Ne4 Rfd8 19.Qxb4 19.d6 Qb8 20.Rad1 Bc6 21.Rfe1 Ra7 Illustrates the compensation very well. Black can regain the pawn in a couple of moves. 22.Qf4 Rad7 23.h3 Bxe4 24.Rxe4 Rxd6 25.Rxd6 Rxd6 26.Rxb4 Rd1+ 27.Kh2 Qxf4+ 28.Rxf4 Bxb2=; 19.Rad1 Qa5 20.Qf4 Bf5 21.d6 Qxa2 22.Rd2 Bxe4 23.Qxe4 Qe6 24.Qxe6 fxe6 25.Ng5 Bh6 26.f4 Bxg5 27.fxg5 a5 28.Rf6 e5 29.Re6 Re8 30.Rxe8+ Rxe8 31.Rd5 Rd8 32.Rxa5 Rxd6 33.Rxe5 Rd2=

19…Bf5 20.d6 Qc6 21.Ng3 Bd3 22.Rfd1 Rab8 23.Qe1 23.Nd4 Qxd6 24.Qxd6 Rxd6 25.Rxd3 Rxd4 26.Rxd4 Bxd4 27.Rd1 Bxb2 28.Nf1 Kg7 29.g3= The endgame is a bit more pleasant to play as black. However, it should be a draw.

23…Qxd6 24.Rd2 Bh6 25.Rdd1 Bg7 26.Rd2 Bh6 27.Rdd1 Offering a draw

27…Rxb2 Black correctly plays on, his position is dominant

28.Ne5 Re8 29.Qc3? 29.Rxd3 Was necessary 29…Qxe5 30.Qxe5 Rxe5

29…Qxe5 30.Qxd3

30…Qf4 30…Rxf2!! 31.Kxf2 Be3+ 32.Ke1 Qf4 33.Qe2 Bf2+ 34.Kf1 Rxe2 35.Kxe2 Bb6 36.Rdc1 (36.Kd3 The lasting initiative eventually leads to a win. 36…Qd4+ 37.Kc2 Qc4+ 38.Kd2 Ba5+ 39.Ke3 Qc3+ 40.Ke2 Bb6 41.Nf1 Qc4+ 42.Kd2 Qe4 43.Kc1 Ba5 44.Nd2 Qe3 45.Kc2 Qc3+ 46.Kb1 Qd3+ 47.Kc1 Bxd2+ 48.Rxd2 Qc3+) 36…Qe3+ 37.Kd1 Qg1+ 38.Kc2 Qxh2 39.Nf1 Qxg2+ 40.Nd2 Ba5 41.Rd1 h5 and black is winning

31.Qf3 Qxf3 32.gxf3 Rc8 33.a4 Rcc2 33…Rc3! 34.Kg2 Rcc2 Leading to a better version of the game 35.Rd8+ Kg7 36.Rf1 Ra2 37.Ne4 Rxa4 38.Rb1 Bf4 39.Rb7 Ra5 40.Rdd7 Rf5

34.Rd8+ Bf8?! 34…Kg7 35.Ne4 Bf4

35.Ne4 f5?= giving up the advantage

36.Ng5 Rxf2 37.Ne6 Rg2+ 38.Kf1 Rgf2+ 39.Kg1 Rg2+ 40.Kf1 Kf7 41.Nxf8 Rxh2 42.Kg1 Rhg2+ 43.Kh1 Rh2+ 44.Kg1 Rhg2+ 45.Kh1 Rh2+

½–½

An exciting draw in which black was on top in most of the game. Now we will take a look at the players who are trailing Reinderman by just a point.

Photo: Bas Beekhuizen

Admiraal,Miguoel (2501) – Zwirs,Nico (2443)

1.d4 d5 2.Nf3 Nf6 3.c3 g6 4.Bf4 Bg7 5.e3 0–0 6.Nbd2 b6 7.h3 Bb7 8.Bd3 c5 9.0–0 Nc6 10.Qe2 Nd7 11.Rad1 Qc8 12.Bh2 Re8 13.e4 e6 14.Rfe1 Sacrificing a pawn

14…a5?! Leaving a big hole on b5

14…cxd4 15.cxd4 Nxd4 16.Nxd4 Bxd4 17.Rc1 Qd8 18.Bb5 Threatening Rc7 18…Rc8 19.Rxc8 Qxc8 20.Nb3 Bc5 21.Nxc5 bxc5 22.exd5 Bxd5 23.b3 White has sufficient compensation as he controls the dark squares and the black pieces are not coordinating so well (yet) 23…Bc6 24.Rd1 Nf6 25.Be5 Nd5 26.Rc1°

15.Bb5 White emerged with an advantage out of the opening

15…Na7 16.exd5?! 16.Bxd7 Qxd7 17.dxc5 bxc5 18.Nb3 Hitting two pawns 18…Rec8 19.Nxa5±

16…Nxb5 17.dxe6 Nxc3 18.exf7+ Kxf7 19.Ng5+ 19.Qc4+ Bd5 20.Qxc3 cxd4 21.Rxe8 dxc3 22.Rxc8 Rxc8 23.bxc3 Rxc3 24.Nf1 Bc6 25.Ne3 Was more resilient

19…Kg8 20.Qxe8+ Qxe8 21.Rxe8+ Rxe8 22.bxc3 cxd4 23.cxd4 Black has reached a comfortable position in which his bishop pair gives him an advantage in the endgame

23…Bd5 24.a3 Bf8 25.Nb1 Ba2 26.f3 Bxb1 27.Rxb1 Bxa3 28.Ne4 Rc8 29.Rb5 Kf7 30.Kf2 Rc2+ 31.Ke3 Rxg2 32.Bc7 Rb2! Liquidating into a winning position

33.Rxb2 Bxb2 34.Nd6+ Ke6 35.Nc4 Bc1+ 36.Kd3 a4 37.Nxb6 Nxb6 38.Bxb6 Kd5 39.Kc3 a3 40.Kb3 Bb2 41.Bc5 h5 42.h4 Bc1 43.Bb6 g5 44.hxg5 Bxg5 A strong technical game by Nico, putting him on 3.5 points

0–1

The other player trailing Reinderman by a single point is Warakomski who won a game in which he was worse for most of the middlegame until the queens were exchanged.

Photo: Bas Beekhuizen

Warakomski,Tomasz (2501) – Nijboer,Friso (2469)

1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bxf3 5.Qxf3 e6 6.d3 Nd7 7.Bd2 Bc5 8.Qg3 Bd4 9.Be2 Ne7 10.f4 a5 11.Nd1 0–0 11…dxe4! 12.dxe4 Nc5 13.Qf3 f5 14.exf5 Nxf5 The white pieces are very passive 15.h4 0–0

12.c3 Bb6 13.Nf2 f5 14.e5 d4 15.c4 a4 16.0–0 Ba5 17.Bc1 b5 18.Rd1 Nc5 19.Qf3 Qb6 20.Rb1 Ra7 21.Kh1 Rd8 22.Bf1 Rad7 23.Kh2 Na6 24.h4 Nb4 25.a3 Na6 26.h5 h6 27.g4 Nc5 27…bxc4! Was the first moment opening the position would have lead to a large advantage 28.dxc4 fxg4 29.Nxg4 Nc5 30.Bh3 Nf5–+

28.Bh3 bxc4 29.dxc4 Rf8 29…Qa6 targetting the c4 pawn 30.Bf1 fxg4 31.Qxg4 Nf5 32.Qg6 Rf7–+

30.Bd2 Qb3?? Giving up an important attacking piece (the queen) but more importantly it is also giving up the beautiful c5 outpost of the knight which is limiting the knight on f2.

30…Bxd2 31.Rxd2 fxg4 32.Bxg4 Nf5–+ and black is again completely dominating

31.Qxb3 Nxb3 32.Bxa5 Nxa5 33.Nd3 fxg4 34.Bxg4 Nf5 35.Nc5 Re7 36.Bxf5 Rxf5 37.Rxd4 Rxh5+ 38.Kg2 g5 39.Rh1 Rxh1 40.Kxh1 gxf4 41.Nxa4 f3? 42.Kg1 42.b4! Rf7 43.Kg1 Nb3 44.Rd3 f2+ 45.Kf1 Nc1 46.Rg3+ Kh7 47.Nc5+–

42…Rg7+ 43.Kf2 Rg2+ 44.Kxf3 Rc2 Seeking active counterplay

45.Ke3 h5 46.Kd3 Rg2 47.Rh4 Rg3+ 48.Kc2 Kf7 49.b4 Rg2+ 50.Kd1 Nb3 51.Rxh5 Rd2+ 52.Ke1 Ra2 53.Rh4 Rxa3 The active play has brought black back from the dead into a position with good drawing chances

54.Nb6 c5 54…Kg6 55.Rf4 Kg5 56.Rf6 Nd4 and black is ready to pressure the b4 pawn next 57.Kd2 Rb3 58.Nd7 Nf3+ (58…Rxb4?? 59.Kc3+–) 59.Kc2 Nd4+=

55.b5 Nd4 56.Re4 Ke8 57.Nc8 Nf5 58.Rg4 Kd7 59.Nd6 Re3+ 60.Kd2 Rxe5 61.Ne4 Kc7 62.Kd3 Kb6?? The last blunder of the game after which there is a narrow path to victory

62…Nd4 Not allowing the pin was essential 63.Rg8 Nxb5 64.cxb5 c4+ 65.Kd4 Rxb5 Leading to a theoretical draw

63.Rg5 63.Rg8 Kc7 64.Ra8 Nd4 65.Ra6 The reason it does not work without the check is that black can liquidate to a draw 65…Nxb5 66.cxb5 c4+ 67.Kd4 Rxb5

63…Ka5 64.Rg1 64.Rg8! Is the winning move 64…Ne7 (64…Kb6 Now black is not in time to put his knight on d4 65.Ra8 Kc7 66.Ra7+ Kb6 67.Ra6+ Kb7 68.Rc6; 64…Nd4 65.Ra8+ Kb6 66.Nxc5 Kxc5 67.Rc8+ Kb6 68.Kxd4 Re1 69.Rc6+ Kb7 70.Kc5+–) 65.Ra8+ Kb6 66.Ra6+ Kc7 67.Ra7+ Kd8 68.b6 Nc6 69.Ra8+ Kd7 70.Nf6+ Ke7 71.Rc8 Nb4+ 72.Kd2! Only move (72.Kc3 Kxf6 73.b7 Na6 74.Ra8 Re3+ 75.Kb2 Re2+ 76.Kb3 Re1= And black draws) 72…Kxf6 73.b7 Na6 74.Ra8+–

64…Nd4 64…Ne7 65.Ra1+ Kb6 66.Ra6+ Kc7 67.Ra7+ Kd8; 64…Kb6 65.Rg5 (65.Ra1 This again does not work. As black is in time to reach the drawing setup that liquidates into knight and rook vs rook 65…Nd4 66.Ra6+ Kc7 67.Nxc5 Nxb5 68.Nxe6+ (68.Ne4 Rf5 Black can just leave his knight en prise) 68…Kd7 69.Nf8+ Ke8 70.cxb5 Rxb5) 65…Ka5 Was best

65.Nxc5 Nxb5 Now it does not work

66.Ra1+ Na3 67.Kd4

1–0

Photo: Bas Beekhuizen

Meanwhile the game between Bosboom and van Haastert was swinging. It seemed van Haastert achieved a very good position but Bosboom managed to complicate matters enough objectively. In the end, he came just short of holding the draw.

Bosboom,Manuel (2410) – Van Haastert,Edwin (2438)

1.Nf3 d5 2.g3 Nf6 3.Bg2 c6 4.b3 Bg4 5.Bb2 Nbd7 6.d3 e6 7.Nbd2 Be7 8.c4 0–0 9.0–0 a5 10.a3 Re8 11.Qc2 Bf8 12.Rae1 Bh5 13.Nh4 e5 14.Kh1 Nc5 15.Ndf3 d4 16.Rb1 Nfd7 17.Bc1 f6 18.h3 Qc7 19.Nf5 Bf7 20.b4 axb4 21.axb4 Na6 22.Bd2 c5 23.b5 Nb4 24.Qb3 Ra5 25.e3 dxe3 26.Nxe3 Rxb5 Black won a pawn, but at the cost of having his rook misplaced.

27.Nd5 Bxd5 28.cxd5 Bd6 29.Rfc1 Qd8 30.h4 30.Qc4 blockading

30…Nf8 31.h5 Ra5 32.Nh4 32.h6 g6 33.d4 exd4 34.Nxd4 Qd7 35.Kg1 Rea8 36.Qc4 b5 37.Qf1± White is getting ready to infiltrate on the light squares

32…Qd7 33.Be4 Rea8 34.Nf5?? Ra3! 35.Qd1 Nxd3 36.Be3 Nxc1 37.Qxc1 R3a4 38.Qc2 Ra1 39.Rxa1 Rxa1+ 40.Kg2 b6 41.Qb3 Qc7 42.Bd3 g6 43.Nh6+ Kg7 44.Ng4 Nd7 45.Bh6+ Kf7 46.hxg6+ hxg6 47.Qc2 e4?? 48.Bxe4 Ne5 49.Nxe5+ Bxe5 50.Bxg6+ 50.f4! draws 50…Bd4 51.Bxg6+ Kg8 52.Qf5 Re1 53.Qg4

 Kh8 54.Qh5 Kg8 55.Qg4=

50…Ke7 51.f4 Qd7 51…Qa7! Targets the white king 52.Qe4 Qa6 53.d6+ Kd8 54.Kh3 Qf1+ 55.Kg4 Qd1+ 56.Kf5 Bxd6 57.Qc6 Qd4 58.Qxb6+ Bc7 59.Qxf6+ Qxf6+ 60.Kxf6 c4 61.Ke6 c3 62.Bg7 Ra6+ 63.Kf7 Rc6 64.Bf6+ Kd7 65.Bc2 Rc4 66.g4 Rxf4 67.Bf5+ Kd6 68.Bxc3=

52.Be4?? 52.fxe5 Qxd5+ 53.Be4 Qxe5 54.Bf3 Qe6 55.Qh7+ Ke8 56.Qg6+ Ke7 57.Qh7+ Kd8 58.Qd3+ Ke7=

52…Bd4 53.Bf3 Kd6 53…Kd8! 54.g4 Qb5 55.Kg3 Ra3–+

54.Bf8+ Kc7 55.d6+ Kb8 56.g4 f5 57.g5 57.Qxf5 Leads to a drawing line in which the white king is running (with success) for his life 57…Qb5 58.Kg3 Qf1 59.Kh4 Qxf3 60.d7 Rh1+ 61.Kg5 Kc7 62.Be7 Rh8 63.d8Q+ Rxd8 64.Bxd8+ Kxd8 65.Qf8+ Kc7 66.Qf7+ Kc6 67.Qe8+ Kc7 68.Qe7+=

57…Qf7

0–1

Meanwhile Trent succeeded in attacking in AlphaZero style and thus scored his first win of this tournament.

Photo: Bas Beekhuizen

Trent,Lawrence (2386) – Sukandar,Irine Kharisma (2408)

1.Nf3 Nf6 2.c4 c5 3.Nc3 g6 4.g3 Bg7 5.Bg2 0–0 6.d3 Nc6 7.Bd2 a6 8.Qc1 Rb8 9.Bh6 b5 10.h4 Attacking the black king immediately

10…bxc4 11.Bxg7 Kxg7 12.h5 Rh8 13.h6+ Kf8 14.dxc4 d6 15.b3 Bb7 16.Ng5 Nd4 17.Bxb7 Rxb7 18.e3 Nc6 19.Qd2 Qd7 20.Rh4 Qf5 21.e4 Qd7 22.0–0–0 Nd4 23.Qb2 Seems to be the one mistake in the game that allowed a (computer) defence

23.Qf4!

23…Qd8 23…Ng4! 24.Ne2 (24.Nd5 f6 25.Rxd4 cxd4 26.Qxd4 Nxh6 27.Rxh6 Kg7 28.Rh2 e5 29.Qd2 fxg5 30.Qxg5 h5„) 24…e5 25.Nxd4 cxd4 26.Qe2 Nf6 27.f4

24.f4 Nh5 25.e5 Nxg3 26.Qg2 Qa5 27.Qxg3 Qa3+ 28.Kd2 Qb2+ 29.Ke1 Nf5 30.Rh2 Qa3 31.Qf3 Qb4 32.Rh3 Rb8 33.Kf1 Qa5 34.Kg1 dxe5 35.Qd5 A very strong game by Trent in which he dominated throughout

1–0

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