Puzzle 17647:
Puzzle 17647:
GM Vassily Ivanchuk (2779) - GM Veselin Topalov (2775)
20th Amber Blindfold Monaco MNC (11), 2011.03.24 Ivanchuk - Topalov, Monaco 2011
20th Amber Blindfold Monaco MNC (11), 2011.03.24 Ivanchuk - Topalov, Monaco 2011