Tiviakov wins Dutch Championship with a round to spare

by Klaus Besenthal
7/8/2018 – In Amsterdam the last round Sunday was not to determine a winner; the Dutch Champion for 2018 was already set in the person of Sergei Tiviakov. Tiviakov had to deal with Loek van Wely, the top seed in the field, in round six, but after Van Wely made a serious mistake, Tiviakov pressed an extremely dangerous initiative and converted his advantage confidently to take an insurmountable lead over Erwin l'Ami, Erik van den Doel and Ivan Sokolov. | Photos: Harry Gielen / Official site

The Art of the Positional Exchange Sacrifice The Art of the Positional Exchange Sacrifice

The positional exchange sacrifice is one of the most powerful and fascinating strategic weapons in chess. On this DVD Sergey Tiviakov explains why the positional exchange sacrifice is such a strong weapon and how to use it.

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Third Dutch Championship title for 'Tivi'

Van Wely, the defending champion, overestimated the passed b-pawn that would emerge after 25...Bb4 (perhaps also the strength of his g6-bishop?), But the calculation did not work out at all. On the contrary, van Wely's manoeuvre also gave a passed pawn to Tiviakov, and his turned out to be strong as a bear:

 

Black's last move brings about a rather adverse change in structure. Of course Black did not want to play 25...b6 26.Nc6 here, but 25...Nc5 was possible as 26.Bxa5 would be met by Rxd4 thanks to the fork on b3.

26.Bxb4! axb5 27.a5! Extremely dangerous — but Black did not sense the danger from afar that the g6-bishop could have trouble stopping the white pawn. Now white has a solid advantage with minimal risk. E.g. If 27...Nxe5 28.a6 bxa6 O-O 30.a7 There is a threat of f3-f4 and Bf3.

27...b3 28.Nxb3 Tiviakov prepares to sac the exchange while van Wely's bishop and h8-rook are out of play. 28.Bc2

 

Black would be fine but for the shot which Tiviakov played in under a minute: 29.Rxd7! Rxd7 (29...Kxd7 30.Nc5+ Kc7 31.Rc1 Rd2 looks logical and offers better chances for resistance) 30.Nc5 Rd5 (and therein lies the problem: 30...Rc7 fails to 31.Nxb7! Rxb7 a6).

31.Nxb7 Rxe5 32.Kf2 Bb3 (The Bishop tries in vain to get back to d5.) 33.Rc1 Ke7 34.a6 Ra8 35.Rc7+ Kf6 36.Nd6. With a second pawn primed to reach the sixth rank, it's all over for van Wely. 36...Rd5 37.Ne4+ Kg6 38.b6 1-0

When Loek van Wely pushed his pawn to c5, everything was fine from his point of view!

Results of Round 6

 

Results of Round 7

 

Final standings

Tiviakov gained his third Dutch Championship title and first since back-to-back wins in 2006 and 2007.

 

All games

 

Translation from German: Macauley Peterson

Links




Klaus Besenthal is computer scientist, has followed and still follows the chess scene avidly since 1972 and since then has also regularly played in tournaments.
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TomE57ach TomE57ach 7/12/2018 04:29
Where was Anish while all of this was going on?
CostaMaison3 CostaMaison3 7/9/2018 07:51
Finally the Dutch Championship won by a Dutch player
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