60 minutes - Moves (param) - unsupported:e4 e5 (d6 d4 Nf6 Nc3 e5 Nf3) Nf3 d6
Short and powerful video chess courses from top trainers: Learn everything essential about a specific topic in just 60 minutes!

A Surprise Weapon against the Philidor Defence, Nico Zwirs (English)
Available for download
$ 9.90