LEXIBOOK CG3000HP Instruction Manual page 18

The computer moves almost instantly on all these levels.
• Level 6 up to 13 give a range of time settings from 5 seconds to 2 hours per move. The playing
strength on these levels ranges from beginner to expert. Level 6 is for blitz chess (5 seconds
per move), level 8 is for fast chess (30 seconds per move), and level 10 is for tournament chess
(3 minutes per move). The times are approximate average response times. The computer will
spend more time in complicated positions and less time in simple positions and in the endgame.
The computer thinks in your time too, so sometimes it will be able to move instantly, because you
made the move it had anticipated! The program also moves instantly when it plays a move from
the opening library.
• Level 14 is a special analysis level that will analyse the position for around 24 hours or
until you terminate the search by pressing the MOVE key (see TERMINATING SEARCH later).
• Level 15 is a special CHECKMATE level for solving mate problems (see MATE PROBLEMS later).
• Level 0 is a special MULTI MOVE mode that allows two persons to play against each
other, while the computer checks that the moves are legal (see MULTI MOVE later).
The computer also has 4 different playing styles:
• In NORMAL mode the computer will equally on attack and defend.
• In AGGRESSIVE mode the computer plays the game on the offensive and avoids surrendering
pieces as much as possible.
• In DEFENSIVE mode the computer's priority is to construct a solid defence. It moves its pawns a
lot and will exchange pieces as often as possible.
• In ALEATORY mode, the computer moves its pieces around a lot and will sometimes prefer to
make an unexpected move play an unexpected move rather than always making the best possible
move.
Level 15 is a special CHECKMATE level for solving checkmate problems in up to 5 moves. To
solve a mate problem:
1. Set up the position on the board (see SET-UP POSITION later).
2. Select level 15 by pressing
again.
3. Press
The computer will think until it finds a way to achieve checkmate, then it will make the first move
towards the checkmate. You can then act as opponent and the computer will find the next move
towards checkmate. If checkmate is not possible, the computer will analyse indefinitely. The
approximate delays for resolving a checkmate problem are as follows:
Level 0 is a special MULTI MOVE mode. In this mode the computer does not play, so you may
enter the moves for both players. You can use this feature to enter a particular opening, or to
replay a game to a certain position. You can also use the computer as a normal chessboard,
playing against another person while the computer checks that all the moves are legal.
To enter the MULTI MOVE mode:
1.
2.
3.
CG3000HP_IM2292_360_V05.indd 18 CG3000HP_IM2292_360_V05.indd 18
XII. RESOLVING CHECKMATE PROBLEMS
. The computer will then begin its analysis.
Checkmate in 1 move
Checkmate in 2 moves
Checkmate in 3 moves
Checkmate in 4 moves
Checkmate in 5 moves
Select level 0 by pressing
Play as many moves as you want.
When you are done, exit the MULTI MOVE mode again by pressing
another level.
then the squares B7, D7, F7 or H7 and then
1 second
1 minute
1 hour
1 day
1 month
XIII. MULTI MOVE
and B8, D8, F8 or H8 and then
18
again.
and selecting
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