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A mate attack out of the blue

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12/9/2009 – Today will see the first game of the final Gelfand-Ponomariov at the World Cup in Khanty-Mansiysk. Opportunity for us to look back on an exciting moment from the endgame Karjakin-Mamedyarov. The latter has just played 49...Rb2? (diagram), thus giving his young opponent the unexpected chance to decide the game by mating threats. Which surprising move helped the 19-year-old Ukraine to secure victory now? Use this larger diagram to work it out for yourself. Grandmaster Karsten Müller has analysed the endgame Karjakin-Mamedyarov for ChessBase Magazine Online.

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Position after 49...Rb2? How did Karjakin continue?

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