Chess Tactics. Play chess puzzles online without registration. This website will improve your skill in chess tactics and combination. Different types of combination such as double attack, discovered attack, mate, battery, pin or pawn winning are avaiable. All puzzles are taken from real games so if you solve these puzzles then got skills be useful to you in future games. This project created only in order to popularize chess. But it was found that passing this test by the end beginners and stronger chess players were able to raise their game by 50-100 points ELO rating. So, good luck and checkmate me.