Greenhill Chess #1, 2015
Dr. Alexey Root reviewed the en passant and promotion rules. Then pairs of students played Pawn Games, with a king and eight pawns per side. Students raised their hands if they were about to play an en passant capture so that Dr. Root could check to see if the e.p. rule was being applied correctly. After promoting a pawn or pawns, students tried to checkmate with their additional material.