The 4th round of the Biel GM Tournament 2015 witnessed one of the most spectacular King manoeuvres as GM David Navara overcame GM Radoslaw Wojtaszek in an inspired fashion. In a Queenless middlegame, Navara, playing White, drove his King all the way up to h8 while resourcefully sidestepping any mating nets whatsoever. As such, Wojtaszek, who had already sacrificed a full Bishop to create a mating net, proved unsuccessful and soon resigned on move 48.
In other games, GM Pavel Eljanov defeated GM Michael Adams whilst GMs Rapport and Vachier-Lagrave split points amongst themselves.
After 4 Rounds, Navara leads the table with a tally of 3 points followed by Vachier-Lagrave on 2.5 points.