Chess Quest – a very nice iPhone App containing 1200 puzzles

[As of this posting, it cost $2.99] Put simply, Chess Quest is a collection of chess puzzles arranged by difficulty level. For those who don’t already know, chess puzzles are a pre-arranged chess board with an identified solution. The idea of a chess puzzle is to improve the endgame, helping a player to find checkmate more easily.

There are six levels of difficulty for players of differing ability levels. Novices will want to start with the “basic” level puzzles before moving on to more challenging puzzles. More advanced players may start on an advanced level or jump from level to level to get more variety.