If you are a 900-rated rapid player, start with The Universal Opening System and 2000 ELO Tactical Mechanics only.
Deciphering the deep positional rules that top-tier players use intuitively. gm igor smirnov all 9 chess courses new
Smirnov shares his approach to analyzing games, including how to identify mistakes, understand strategic and tactical ideas, and create a plan for improvement. If you are a 900-rated rapid player, start
: Focuses on long-term strategy and the hidden rules of positional play that often baffle club players. including how to identify mistakes