80/20 Tactics Multiplier

The Sicilian Dragon - IM Valeri Lilov - 80/20 Tactics Multiplier

The London System - IM Eric Rosen - 80/20 Tactics Multiplier Volume 4

The Scotch Opening - IM Irina Bulmaga - 80/20 Tactics Multiplier Volume 5

The Trompowsky Attack - IM Levy Rozman - 80/20 Tactics Multiplier Volume 7

The Sicilian Najdorf - GM Niclas Huschenbeth - 80/20 Tactics Multiplier Volume 6

The Benko Gambit - IM Robert Ris - 80/20 Tactics Multiplier Volume 9

The French Defense - GM Mihail Marin - 80/20 Tactics Multiplier Volume 8

The Grunfeld - GM Sam Shankland - 80/20 Tactics Multiplier

The King's Indian Defense - GM Bryan Smith - 80/20 Tactics Multiplier

Bb5 Systems vs Sicilian - The Evans Gambit - IM Lawrence Trent - 80/20 Tactics Multiplier Volume 11

The Queen's Indian Defense - IM Hans Niemann - 80/20 Tactics Multiplier Volume 13

80/20 Tactics Multiplier - The Evan's Gambit - GM Marian Petrov - Volume 10

80/20 Tactics Multiplier - The Paulsen Sicilian - GM Rashad Babaev - Volume 12

80/20 Tactics Multiplier - Positional Sacrifices - GM Bryan Smith - Volume 12