The variable puzzle
"exchanges"……
There are too many pieces … or not
enough pieces ?
You can chose the number of pieces by row and by column by using
the "+" and "-" buttons.
To play, click on the piece of the puzzle
you want to move.
Drag it to the chosen square then click. The 2 pieces are
exchanged and the couter "exchanges" increases one unit.
To have a look at the model while playing, click on the "Model"
button.
When all pieces are at the right place,
you win ! You can check the number of exchanges you've done to
make it.
To replay the puzzle with the same number
of pieces, click on the " New Game " button.
Good luck !
Photo : Régine
Explorer 5... and Netscape 6...