Chess Genius for the Nokia 7650 is a strong chess program for the Nokia 7650. It has many features and takes only 111kb of memory. It was written by Richard Lang a computer chess champion. The game can be purchased via Handango (http://www.handango.com/brainstore/PlatformProductDetail.jsp?siteId=308&platformId=4&productType=2&productId=46057&sectionId=0&catalog=1).

[list] Free updates - Updates will be free for registered users
Incredibly strong play - Excellent play even on the 'instant' level
Small and compact - ChessGenius.sis is only 65 KB in size and requires only 111 KB on your phone
Thirty playing levels
Ten easy levels. ChessGenius makes deliberate mistakes
Ten time based levels. Instant, 1 sec, 2 sec, 3 sec, 5 sec, ... 2 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
Game information - The last moves of the game
Chess Clocks. Total White and Black time and move time
Analysis line
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
Hint - Let ChessGenius suggest your move
Players Play against ChessGenius, against another player or watch
ChessGenius play itself
Rules of Chess - Understands all the rules of Chess including, en-passant,
underpromotion, 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 in PGN format.
Games are saved to the "notes" application and can be edited and transferred
Big chessboard option - Choose between two chessboard sizes
Hash tables - ChessGenius uses hash tables for strong fast play
Opening book - Big library of opening moves.[/list:u]