Daily puzzle 042407 ChessVibes Updated: Aug 31, 2011, 3:23 AM | 0 | Chess Event Coverage What do you play with Black? The solution will be published tomorrow. Yesterday's solution: 21.Ra2!! followed by 22.f4 was surprisingly strong in Kramnik-J.Polgar, Sofia 2005.Have fun with our daily puzzles! More from ChessVibes A lengthy interview with David Navara (part 2 of 2) Robots in a Moscow park... playing chess (VIDEO)