A00-A99

A00 Irregular Openings A01 Nimzovich A02-A03 Bird A04-A09 Réti A10-A39 English A40 Irregular Queen's Pawn A41-A42 Modern A43-A44 Old Benoni A45-A50 Indian A51-A52 Budapest A53-A55 Old Indian A56 Benoni A57-A59 Benko Gambit A60-A79 Modern Benoni A80-A99 Dutch