Enquanto você não considerar seu estilo de jogo mais tempo demora

Rating Comparisons

FIDE Elo ratings of the participants.

A compilation of rules to follow in tactics

100 “Clearance” Chess Puzzles for Advanced Players (Rating 1500-1800): 100 real-life chess tactics puzzles to make you a better player (Chess Puzzles, and Tactics - Clearance (Clear the Square)): Puzzles, Mr

Best Free Chess Improvement Resources

Rating and OTB Rating, PDF, Board Games

Houston Chess: Chess Tempo Tactics Server

The Chess Lv.100 by UNBALANCE Corporation

Gollum's Chess Reviews: Improving your tactics

Improving your tactics - Gollum's Chess Reviews