Puzzle 475174:
Puzzle 475174:
GM Hou Yifan (2595) - GM David Navara (2707)
Cez Trophy 2013 Prague CZE (3), 2013.06.13 Hou Yifan - Navara, Prague 2013
Cez Trophy 2013 Prague CZE (3), 2013.06.13 Hou Yifan - Navara, Prague 2013