Game of the Week #734: Lahaye vs Harshavardhan

by Merijn van Delft
8/7/2026 – At the Dutch Open in Dieren many interesting games were played, including several GOTW candidates. Especially the seventh round was a bloody affair with decisive results at the first five boards. My old friend Rick Lahaye (2394) played a positional masterpiece against IM Harshavardhan (2508). Without wanting to spoil too much, it's the perfect example of playing with a classical Nimzowitsch blockading knight and its longterm power. Merijn's show is available on-demand with a ChessBase Premium Account. You can register a Premium account here.
In this Fritztrainer: “Attack like a Super GM” with Gukesh we touch upon all aspects of his play, with special emphasis on how you can become a better attacking player.

Game of the Week #734

At the Dutch Open in Dieren many interesting games were played, including several GOTW candidates. Especially the seventh round was a bloody affair with decisive results at the first five boards. My old friend Rick Lahaye (2394) played a positional masterpiece against IM Harshavardhan (2508). Without wanting to spoil too much, it's the perfect example of playing with a classical Nimzowitsch blockading knight and its longterm power.

Warming-up question: What would you play here with White?
 

This week's show

Besides covering all the critical lines after 1.d4 & 2.c4, popular systems such as the Trompovsky, London/Jobava System, Torre Attack, Colle System and Veresov are dealt with as well.

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Topics: The Game of the Week, Training and improvement
Merijn van Delft is an International Master from the Netherlands who lived in Hamburg for many years and is currently based in Amsterdam. After scoring a GM norm in 2017 he is eager for more. His ChessBase show on Wednesday evenings has been running for over ten years now.
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See also

Game of the Week #732: Nepomniachtchi vs Kvaloy

7/31/2026 – The chess summer continues with events all over the place. The DOLE open in Aix-en-Provence, France, features elite players like Nepomniachtchi, Tabatabaei and Maghsoodloo. Nepo already had to accept two draws in the first four rounds, when he was paired with young Norwegian GM Aksel Bu Kvaloy in the fifth round. Both players showed very inspired chess, each of them willing to sacrifice material at various stages of the game. Nepo kept playing very fast, until disaster struck. Merijn's show is available on-demand with a ChessBase Premium Account. You can <a href="https://account.chessbase.com/en/create-account" target="_blank">register a Premium account here</a>.

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Game of the Week #731: Martinez vs Le Quang

7/29/2026 – There is a lot of chess going on right now. While I'm playing in the first edition of the Amsterdam Chess Festival myself, there are elite events going on in Chennai and Biel. While Firouzja is leading in Chennai (beating Gukesh in the second round), Le Quang Liem is leading in Biel. Our Game of the Week is Martinez Alcantara vs Le Quang Liem, featuring the trendy 6...g5 in the Steinitz Deferred variation of the Ruy Lopez. For now the verdict seems to be: fully playable for Black. Merijn's show is available on-demand with a ChessBase Premium Account. You can <a href="https://account.chessbase.com/en/create-account" target="_blank">register a Premium account here</a>.
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Video

60m English New ideas in the Najdorf_E

‘New ideas in the Najdorf – a Power Play 18 Update’ aims to complement Daniel King’s popular DVD from last year ‘The Sicilian Najdorf - a repertoire for Black’. Such a dynamic and popular opening as the Najdorf is developing the whole time. On this download, Daniel King updates lines that were included on his DVD but also responds to viewers’ requests, considering lines that he omitted from his original repertoire. The lines examined on this update are: • 1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 h3 e5 7 Nde2 • 5….a6 6 Bc4 in combination with the English Attack (Be3, f3 etc) • 5…a6 6 Be3 and the …a5 variation • 5…a6 6 Be2 and 9 Re1 • 5 f3 (instead of 5 Nc3) It isn’t necessary to have seen the original Najdorf DVD to understand the lines examined here – but it would help as they form part of a complete repertoire.