This is the Free version of Mobialia Chess, the most complete chess app for Android

Play against AI

- Selectable ELO Levels to adjust playing strength, from 500 to 2100, on 50 ELO points steps
- Selectable time per move: changing the ELO and the time per move, lots of difficulty levels can be selected
- Opening book with more than 30.000 positions: ensures variated funny games
- Can undo/redo all moves
- Send PGN by email: This way, you can analyze later your games on your PC
- Graphical setup board, also can edit position's FEN notation
- On closing, saves the current game and it is loaded when the application is restarted

Play online

- Play online at freechess.org (FICS) or chessclub.com (ICC)
- Play as guest or as a registered user
- Seek/offer match rated and unrated
- View seeks posted by other users. Can sort seek list by username, rating or game time
- Takeback, draw, abort, resign and rematch options while playing
- Play, Finger and Observe, can also observe LectureBot on FICS or play ProblemBot/TrainingBot on ICC
- Observe current played games in the chess server or follow highest rated games
- Messages: read and send messages to other users
- Game History: you can examine or send by email all your played games
- Console to see server output and to send commands, also for chatting with other users
- Timeseal (FICS) and Timestamp (ICC): avoids lag problems
- Premove option: You can introduce the next movement in your opponent's turn
- Option to confirm the move before sending it to the server. Forward and Backward buttons are converted on Confirm/Cancel buttons
- Supports wild chess variants: Atomic, Losers, Suicide and Chess960

Chess problems

- 2900+ chess problems to solve looking for the best moves: problems collected by Uwe Auerswald, from Germany
- Selectable problem difficult (Easy, Medium and Hard Problems)

Chess database

- Chess database of ~3.1M games updated weekly from http://www.theweekinchess.com
- It allows to search for players, events and dates from the section Database in the main sidebar
- It can search specific positions from the board with ⋮-> Search position in DB
- Searching a board position shows stats including, for each move, the number of games where the move was played and the white victory/draw/black victory percentages as bars
- From the stats screen you can list all the games in the current position with ⋮-> Show games

PGN browser

- Simple PGN browser, allows you to open PGN files from SD card or from your email

Analysis

- Analyis mode in the board screens with ⋮-> Analysis
- It shows the position's ECO code

A great interface

- 2D/3D board
- Clean, simple and intuitive interface
- Move by dragging and dropping the piece with useful guide lines
- Also move by tapping the origin and the destiny squares or with the trackball
- Portrait and landscape mode
- Shows legal moves (as yellow translucent squares)
- Highlights last move (with a yellow arrow or a colored square, can be configured with a settings option), also move hints (as a green arrow) after a request in the menu
- Many piece sets and board styles
- Shows a dot in the side to move and can show board coordinates
- The material gauge indicates the material advantage using this piece values: Pawn=1 Knight=3 Bishop=3 Rook=5 Queen=9. Click on the gauge to show/hide the captured pieces difference
- Shows captured pieces advantage (as an example if black captured 3 pawns and whites 2, it shows an advantage of 1 white pawn for blacks)
- Speaks moves, checks and game results
- Different sounds for moves, captures and checks, also vibration
- Option to keep the screen on while playing