Puzzle 843120:
Puzzle 843120:
GM Y. Shulman (2622) - GM R. Robson (2522)
ch-USA GpA Saint Louis USA (6), 2011.04.20 Shulman - Robson, Saint Louis 2011
ch-USA GpA Saint Louis USA (6), 2011.04.20 Shulman - Robson, Saint Louis 2011