Tuesday, June 1, 2010

Rybka 4 Is Not As Strong As You Think

Someone in Chessbase has a wicked sense of humour when it comes to advertisement of the latest Rybka 4 engine.

If you scroll down towards the end of the page, you would have seen this picture.

What's wrong with this picture?

Rybka4 is analysing the position and shows that Black's best move is ......

20 .....h6

For those who are unaware, this position is Game 4 of the 2010 World Chess Championship between Topalov and Anand. In this game, both Anand and Topalov criticised this move as being weak because it gives White an avenue for a dangerous attack/ Knight sac on h6 (which is what happened in the end).

Interesting, eh? :)


  1. Deep Rybka 4 even!

    And that my friend, is why you should question everything. Especially when it comes to chess engines.

  2. you've been hard at work all the while, thats for sure.

    nice to see you here, wonderful, high quality blog.

    Warmly, dk

  3. CMoB: Funny how things don't always look as apparent as they seem. :)

    dk: Hi dk, thanks for your kind words. Great to hear from you!