HIARCS Chess for iPhone
On this page you will find five sections offering help on how to use the HIARCS Chess product on the iPhone/iPod touch:
You can access many of the HIARCS features via the menus and view displays. These are explained below.
This menu allows you perform the following operations on the game:
These features allow you to navigate through a game and obtain coach and book advice from the computer.
The HIARCS menu gives you access to the chess features available from the chess engine:
The player names and Elo rating will reflect the players in the game. When you are playing HIARCS, you will see You and HIARCS and the Elo rating will indicate your current rating and that HIARCS is set to. If you loaded a game between other players those player names and Elo ratings will be displayed to correctly reflect situation at the time the game was played.
The clocks will reflect the current time settings, for time controls the
clocks will count down. When the clock reach zero that player has
effectively lost on time, and goes red. However, HIARCS will allow you to
play on. For average time per move settings the clock will count up.
You can modify the appearance of the chess board and select multiple piece sets via the HIARCS:View Options menu
This is an optional line which enables you to see the best book moves available in the current position and once "out of book" it will display the name of the opening played and ECO code. Book moves are displayed using Algebraic notation and can be followed by the symbols: ! to indicate a strong move, ? to indicate a poor move or no symbol to indicate a normal playable move. You can see statistics for book moves in the Book move stats screen.
The move list displays in algebraic notation the moves played in the game up to the current position. You will see new moves added as moves are played and moves are removed if you take back moves. You can also navigate through the moves or replay the moves of the game in which case you will see the move list changed for each move.
When you have Show move advice on, each time you select a piece to move the move list will be replaced by a colour coded legend explaining the colour highlights. This legend is removed and replaced with the move list as soon as you make a move or deselect a piece.
The analysis line is an optional line which enables you to see while HIARCS thinks the line of play expected by the chess engine. The analysis is displayed with the depth of search in ply, evaluation where 1.00 = a pawn (positive for white advantage, negative for black advantage) and the expected line of play in algebraic notation. With Coach assessment on, you will see the value assessment of current position from white's perspective displayed in the bottom right corner of the screen.
The toolbar displays the menu button and icons. You can read more detail about the menus and icons in the menu help screen and icon help screen.
Optionally via the navigation icon you can use the move navigation slider and VCR buttons to navigate around the game. HIARCS will update game information as you select a different point in the game. The navigation controls appear in place of the analysis and book information while the move list is moved up the screen to make it easy to see where in the game you are.
Flip/rotate board: Tapping this icon will rotate the chess board around 180 degrees.
Hint move: Tapping this icon asks HIARCS to give you a hint move to help you decide on the best next move. The hint move is demonstrated on the board by making the recommended move and taking it back.
Navigation: Tapping this icon makes HIARCS display the game navigation move slider and VCR buttons if not currently on screen. If already displayed the navigation controls are removed from the screen.
Start of game: Tapping this icon makes HIARCS go to the beginning of the game. It has no action at the beginning of a game.
Takeback: Tapping this icon makes HIARCS takeback one single move. It has no action at the beginning of a game.
Stop: Tapping this icon makes HIARCS stop thinking or stop replaying.
Forward: Tapping this icon makes HIARCS step forward one single move in the game. It has no action at the end of a game.
End of game: Tapping this icon make HIARCS go to the end of the game. It has no action at the end of a game.
Microchip: tapping the microchip has multiple functions depending on the play mode and who is to play.
Chess players are given a chess rating to gauge how strong they are at chess. The standard rating system used in chess is called Elo ratings named after Arpad Elo. A related system is used in tennis.
Elo ratings are based on the results of games and ratings of opponents played.
The Elo rating system ranges from 1000 Elo (a complete novice) to 2800 Elo and beyond for the strongest players of all time.
Were a player A to score two points for every one point of player B, then player A would be expected from this performance to have an Elo rating about 120 Elo points more than player B. As you can see there is a great difference in chess strength as you go up the ratings.
The ratings can be split into the following broad classes:
Hiarcs uses Elo ratings in a number of ways:
Did you know?
"generally I use
HIARCS." - Five time World Chess Champion
Vishy Anand, in a recent interview when asked what chess program he uses to
World Chess Champion, Vishy Anand, used "Powerful" HIARCS machine in preparations for his 2010 & 2012 world title matches
"This level of service is one other big reason to buy HIARCS." - John Jackson
† Highest performance
reached depends on computer used.
Computer Chess Software
with world class chess engine playing strength.