Champion 2250 XL Chess Computer
(600-2215)                 Advanced Functions         Faxback Doc. # 46724

Verifying Piece Positions

If you accidentally move the chess pieces, return them to their correct
positions as shown on the display.

Taking Back and Replaying Moves

This function lets you take back and replay any moves made by you or the
computer after the moves have been completed.  You can take back up to 34
consecutive moves (your moves and the computer's moves).

1.  Press FUNCTION.  F flashes on the display.

2.  Repeatedly press WHITE/- to view a game's next moves (after you have
    taken back moves).  The display shows the previous or next move you or
    the computer made each time you press WHITE/- or BLACK/+.

    Note: If you try to take back more than 34 moves or take back moves to
          the beginning of the game, the computer sounds an error beep.

3.  To continue the game at the position shown on the display, press
    ENTER.  Then reposition the chess pieces on the board to match the
    display.

    To continue the game without making any changes, press CLEAR.

Problem Setup

You can use the setup mode:

  To erase, re-enter, or relocate pieces any time before or during a game.

  To set up problems or puzzles for the computer to solve.

Note: If you have already started a game, you must press POSITION during
      your turn to enter the setup mode.  If you have not started a game,
      you can press POSITION any time.

Before using this mode to create your own positions, familiarize yourself
with this procedure by setting up the board positions described in the
following examples.

Full Board Setup

In a full board problem setup, the computer records the positions you
enter into memory and assumes all other pieces remain in their initial
positions.  You only need to go through these steps for pieces that you
want to remove or move from their initial positions.

Follow these steps to set up a game with most of the chess pieces in their
original positions.

1.  Set up all of the pieces on the board.

2.  Press CLEAR and ENTER at the same time.

3.  Press POSITION. P -- appears on the display.

4.  Press the piece you want to remove or move on its FROM square.  The
    piece's symbol and the FROM square flash alternately on the display,
    and the piece symbol's icon (next to the flashing FROM square on the
    display) appears instead of the chess clock icon.

5.  If you want to remove the piece, press it on its FROM square again.
    The piece symbol on the display disappears, and the display shows the
    piece symbol's icon and --.

    If you want to move the piece, move the piece to the desired square,
    then press it on the square.  The piece's symbol appears in the
    location you chose on the display, and the piece's new location
    appears on the display.

6.  Repeat Steps 4 and 5 for any other pieces you want to move or remove.

    If necessary, press WHITE/- or BLACK/+ to change to the side you want
    to move first.  Rank board light 1 lights to indicate it is white's
    turn to move; rank board light 8 lights to indicate it is black's turn
    to move.

7.  When you finish setting up the pieces, press ENTER.  The computer
    beeps several times.

Note: If the computer beeps an error tone, one or more pieces were entered
      illegally. To correct the set up, see "Correcting illegal Setups"
      below.

Partial Board Setup

Follow these steps to clear the chessboard and set up only a few pieces.

1.  Press CLEAR and ENTER at the same time.

2.  Press POSITION.  P - - appears on the display.

3.  Press FUNCTION.  Clear Board flashes on the display.

4.  Press CLEAR.  Clear Board stops flashing, and the computer clears the
    positions of all pieces on the board. All piece symbols on the display
    disappear.

5.  Press the piece symbol key for the piece you want added and WHITE/- or
    BLACK/+ to change the color, if necessary.  The piece's symbol appears
    on the display, and rank board light 1 or 8 lights.

6.  Press the piece you want to add onto the square where you want to add
    it.  The piece's symbol and its new location appear on the display.

7.  Repeat Steps 5 - 6 for any other pieces you want to add.

8.  When you finish setting up the pieces, press ENTER. The computer beeps
    several times.

Note: If the computer beeps an error tone, one or more pieces were entered
      illegally.  To correct the set up, see "Correcting Illegal Setups"
      below.

Adding Pieces During a Game

Follow these steps to add pieces during a game.

1.  Press POSITION. P -- appears on the display.

2.  Press the piece symbol key for the piece you want to add and WHITE/-
    or BLACK/+ to change the color, if necessary.  The piece's symbol
    appears on the display.

3.  Press the piece you want to add onto the square where you want to add
    it.  The piece's symbol appears on the display, and the piece's new
    location appears on the display.

4.  Repeat Steps 2-3 for any other pieces you want to add.

5.  When you finish setting up the pieces, press ENTER.  The computer
    beeps several times.

Note: If the computer beeps an error tone, one or more pieces were entered
      illegally.  To correct the set up, see "Correcting illegal Setups"
      below.

Removing Pieces During a Game

Follow these steps to remove pieces during a game.

1.  Press POSITION.  P -- appears on the display.

2.  If necessary, press WHITE/- or BLACK/+ to change or select the side
    you want to move first.  Rank board light 1 lights to indicate it is
    white's turn to move; rank board light 8 lights to indicate it is
    black's turn to move.

3.  Press the piece you want to remove onto its FROM square.  The piece's
    symbol and its icon flash on the display.

4.  Press the piece on its FROM square again to remove it.

5.  Repeat Steps 2-3 for any other pieces you want to remove.

6.  When you finish setting up the pieces, press ENTER.  The computer
    beeps several times.

Correcting Illegal Setups

To be legal, a setup must meet the following conditions.

  Each side has one king.

  The king for the side which is to move is not in check.

  The total number of pieces in play is not more than the number of new
  pieces at the start of a game.

  There are no pawns on the first or eighth rank.

If the computer beeps an error tone, one of more pieces were set up
illegally.  To correct the set up:

1.  Set up a piece, remove the illegal piece, or replace an incorrectly
    placed piece with the correct piece for that square.  See "Adding
    Pieces During a Game" above or "Removing Pieces During a Game."

2.  When you finish setting up the pieces, press ENTER.  The computer
    beeps several times.

(LB/eb 3/13/98)