World Problem Solving Championship 2011 – Solutions

In his report on the competition, which was won by 19-year-old Kacper Piorun, the second-placed solver, GM Dr John Nunn, presented a selection of problems which the competitors had to face. Today he presents the solutions, in the unique explanatory style that has made his many chess books so popular. Studying his notes allows you to delve into the magical world of chess problems.