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Resistance of elite players is really high. It's really hard to force them to resign. Winning as Black over 2700+ player is harder task than notorious "pulling hippopotamus out of the marsh. The more pleasant is that Mikhailo Oleksienko got out of his eminent opponent's preparation swamp with honor. And after in the complicated play even managed to beat the participant of Linares 2010 Vugar Gashimov.

Mikhailo Oleksienko never plays boring chess. And in this case, the opening also provoked him - Benoni defence. As a result there appeared this nice game. I also want to draw your attention at the final combination. Even the strongest computer cannot spot it. This is amazing, since calculation of variations is undoubted basic strength of our silicon friends. So we may be happy that a strong grandmaster can not only overplay computer but also overcalculate it!

One of the best Russian chess commentators Maksim Notkin wrote: “In game Oleksienko-Grandelius, Ukrainian grandmaster, having got advantage in interesting positional game, chose a fabulous way of its realization”. Forcing line with exchange sacrifice led to a position where White had also to sacrifice one more piece to rescue himself from mate, as a result game arrived to endgame, where extra rook wasn’t able to stop white pawns from promoting”. The only thing I can add to this is thanks to Mikhaylo Oleksienko for his detailed comments which clarify what actually happened in this thriller-game.