ChessGenius can only be purchased from the Apple App Store. Price in US is $5.99. Price elsewhere is set by Apple and depends on exchange rate and local taxes. All program updates will be free.

[Buy now from Apple App store].
Alternatively go to the Apple App store and search for ChessGenius

• Runs on all iPhone, iPad and iPod touch devices with iOS 6.0 and higher
• Small and compact
• Incredibly strong play
  Excellent play even on the 'instant' level. Does not require a network connection.
• Hundreds of playing levels
  13 easy levels. ChessGenius makes deliberate mistakes.
  Ten time based levels. Instant, 1 sec, 2 sec, 3 sec, 5 sec, ... 3 mins.
  Ten Blitz levels. Whole game in 1 min, 2 min, 3 min, 5 min, .... 120 min. The Chess clocks count down in these levels. You lose if you run out of time.
  Time control levels. You can chose two time controls and optional Fischer time increment. For example, 40 moves in one hour followed by 30 mins to finish
• Thinking information. (Analysis)
  Show analysis Option. It may, for example, show:
  "1.03 05 cxd4 Nxd4 Nc6 Bb5" This means that:
  ChessGenius is winning by 1.03 pawns. Search depth = 5, and line of moves. ChessGenius is planning cxd4 and expects Nxd4 in reply etc.
• Landscape
  Rotate your device to play with landscape display.
• Chess Clocks
  Total White and Black time and move time.
• Make moves by dragging or tap and tap
• Set-up position
  Any legal position can be entered.
• Take back and Step forward
  Take back moves to start of game and Step forward to end of game. Easy take back and step forward with toolbar icons.
• Hint
  Let ChessGenius suggest your move.
• Opening name
  For example ChessGenius may display "B12 Caro-Kann defence".
• Next best move command
  After ChessGenius has played a move "Next best move" will force ChessGenius to take back its last move and compute the next best move. This is useful for forcing ChessGenius to play a particular opening and for analyzing positions.
• Players
  Play against ChessGenius, against another player or watch ChessGenius play itself.
• Analyze game
  Like 2 player mode but ChessGenius calculates continuously and shows its thinking. Useful for replaying games to see where mistakes have been made.
• Rules of Chess
  Understands all the rules of Chess including en-passant, under promotion, castling, draw by repetition and the 50 move rule. Announces a draw if there is insufficient material to win.
• Save and Load games
  Games can be saved and loaded to PGN files. Games can be sent by email and databases downloaded from the internet.
• Tutor option
  ChessGenius will warn if a blunder / weak move is played and give the option of take back.
• Board colours
  Choice of 8 board colours.
• Show legal moves option
  After selecting a piece ChessGenius shows where the piece can move to.
• Show last move option
  ChessGenius can indicate the previous move.
• Championship
  A 'Championship' icon is displayed if you have not used Hint, Taken back moves or viewed the analysis. Can you beat ChessGenius without help?
• Six piece sets
  Chose between Modern, Russian, Royal and Classic color sets (designed by Bryan Whitby) and the Alpha and Merida black and white sets.
• Easy import / export of database files with iTunes file sharing
• Free updates

• Bigger, deeper opening book. Bigger by a factor of 2.5
• New adjustable playing levels with Fischer clock
• Ready for iOS 10

• The user interface has been rewritten for iOS 7 and 8
• Support for iPhone 6 and 6 Plus at native resolutions
• All functions now work in Portrait and Landscape
• New Piece sets, Board colors and patterns
• Optional display of captured pieces
• Optional count of positions searched
• Adjustable Hash table size for stronger play

• Easy import / export of database files with iTunes file sharing
• Bug fixes for iOS 6

• Now designed to run on iPad as well as iPhone and iPod touch
• High resolution graphics for iPhone 4G and iPad
• Improved graphics. Board shading, extra piece set and board color
• Copy and paste PGN games
• Bug fixes
• Support for French and Italian languages

• Games can be exported by email
• PGN databases can be imported from internet
• Handles multiple PGN databases and each database can contain multiple games
• New hi-resolution graphics. 4 piece sets
• 3 new easy levels for novices
• Rotate to Landscape view now optional
• Support for German Language