A match decided in an endgame

9/30/2009 – In the Short-Efimenko match, which finished last Saturday in  Mukachevo, the young Ukrainian player went straight into the lead in round one, but saw Short catch up immediately in the next round. The match was finally decided in round five - in a rook ending, in which the experienced English player demonstrated his faultless technique to secure the win. In the position in the diagram Short (White) was on the move and held on to his advantage with an accurate manoeuvre. Can you work out his 38th move? Our ChessBase Magazine endgame expert GM Karsten Müller has analysed the decisive phase of this game.