Steenvreter

Steenvreter is a MCTS based go program developed by Erik van der Werf. It won the Computer Olympiad in 2007 (9x9) and placed second in the 2011 Computer Olympiad (19x19 & 13x13). A lite version is available for Android at https://market.android.com/details?id=nl.tengen.gridmaster

http://erikvanderwerf.tengen.nl/steenvreter.html