irregular chess opening
infrequent and unorthodox chess opening
Anderssen's Opening
chess opening, consisting of the 1. a3 move
Fried Fox Attack
unorthodox chess opening 1. f3 e5 2. Kf2
Durkin Opening
chess opening
Dunst Opening
chess opening
Amar Opening
chess opening
Ware Opening
chess opening 1. a4