Chess Problems Lite vs Pulsar Chess Engine

A lite version of the Ultimate mate in 1 to 4+ chess puzzle apps! Sharpen your chess skills! Beginners and experienced players will enjoy solving these chess problems! This app has 10 interactive chess problems ranging from easy mate in one move problems to very challenging mate in four moves. The object is to finish each game by forcing a checkmate in a given number of moves. In the full versions of this app there are a much larger number of classical puzzles collected from a variety of sources. These puzzles are fun to play and can be enjoyed at your leisure on your iPhone, iPod touch, and iPad. Chess problems are especially useful for learning to play chess or anyone wanting to improve their skills. New features added include: ------------------------------ - Completely revamped chess engine that is much stronger - Timing clock is displayed while you are working on each puzzle. How long you take to solve a puzzle is stored. - New options: more chess piece sets (total of 7) and more colors schemes (total of 7) including wood and marble. (Improved the options menu as well) - Social Gaming: Leaderboards to compare the number of puzzles you have solved with your friends and other players. Facebook integration - including the ability to post your progress and ask your friends for help on a puzzle. - Universal app - works on iPhone, iPod Touch, and iPad - high resolution graphics all around (where supported). For even more chess puzzle challenges check out these apps: - Mate in 1 Puzzles - Mate in 2 Puzzles - Mate in 3 Puzzles - Mate in 4+ Puzzles

The Pulsar Chess Engine plays Chess and six variants all with multiple levels. The variants are Chess960, Crazyhouse, Loser's, Atomic, Three Checks and Giveaway. Rules included in-app. In addition, there is also a review mode to look at the user's log file with analysis available for non variants. 10 game collections of classic and modern master games are included to look at including Kasparov, Fischer, Carlsen, Capablanca and Morphy 1858 collections. These collections and the log file are searchable. Pulsar values mobility and active positions. In app there is an article with more on its playing style and how to train against it. With the variants, each has its own style. Chess960, Three Checks and Crazyhouse are the more chess like variants and adoptable to learn to play for anyone with interest. The rules of all games are in app. Pulsar has levels of play from beginner too advanced. Games with a time control are the hardest though Pulsar doesn't call the player's time. The time is more to handicap Pulsar's strength, but users will have a clock and can see if it's gone negative if they want to play the time control. The game button - configure game menu item, lets the user control the variant and difficulty. It defaults to Chess at Easy(lowest level) but remembers the current settings when the App restarts. There are choices of pieces and board color schemes. The Pulsar program was originally developed by me for computers starting in 1998 and came to mobile for the first time in 2014. Pulsar's board is accessible to the blind using Voice Over, a screen reader. Tap on a square and it will say whats on it and double tap to move or choose from three move methods. A screen reader can normally read anything with text like a button, but a board is a collection of images. To make it accessible, text must be returned to Voice Over when a tap is in the area of a square. Pulsar began as a chess program and later learned variants. It ran extensively on two servers for many years both at chess and variants. The ratings on the board reflect strength I saw in rated play on handicapped bots. They are not 100% exact but generalizations I made from the various bots I ran at different settings. If in the new game selector, Play vs. Computer is unchecked the user can move for both sides. This is to allow two people at same location to use the App as a board for a game and have the app enforce move legality and results for whatever variant is selected.