object of this game is to guess the sequence of four
colored pegs the computer has selected at random from
the circled colors in the right field.
You start filling the holes
at the bottom row with pegs, and each time you have
completed a guess (i.e. filled all four holes) the
computer will respond by giving you one peg for each
correct color - black if your guess was also in the
right place, otherwise white. (But you will not be
informed about which colors were correct.
That part you will have to figure out for yourself.)
If you haven't managed to
guess the sequence by your 8th guess, the computer
will reveal it to you and the game ends.
First select which colors you want to play with. (The
default set contains blue, green, red and yellow.
That's moderately difficult. For obvious
reasons you are not allowed to select fewer than two.
:-) Clicking on a color in the field on the right
will toggle the circle around it on/off, indicating
whether it will be part of the set the computer draws
from. Then press 'Start' to begin.
In case you wish to
start over, just press 'End' to discontinue the game.
By Karl Hörnell, March
Last modified April 17, 1996.
This is yet another Java
implementation of the classical Rubik's Cube. I tried
to make the user interface as simple and obvious as
possible. You should be able to figure out how it works.
Twist or rotate by pointing and dragging in "natural"
Press s to scramble
and r to restore (while positioning the mouse
cursor somewhere in the applet region).
The 15 Puzzle
December 14, 1998. Last modified June 15, 1999.
By Karl Hörnell, February
If you are not familiar
with this game, the object is to remove as many marbles
as possible from the board. The only legal moves are
horizontal or vertical jumps with one marble over another
to an empty hole on the other side, whereupon the marble
that was jumped over goes away. To move, just drag the
marbles in some legal direction.
Hörnell, Aug 18, 1996.
Last modified Oct 24, 1997.
In addition to loading the
sound and graphics data, the game will need a few
seconds to prepare some fractals used in the scenery,
so please be patient.
The colored horizontal bar
at the lower left in the introduction screens shows
the current speed settings of the game. The red
part is the minimum amount of time per animation
cycle the processor is given to take care of other
things. The total bar, i.e. red plus yellow, represents
the minimum amount of time an animation cycle is
allowed to take.
Press A or S
to decrease or increase the red time and Z
or X to decrease or increase the total time.
Default values are 20 ms for the former and 100
ms for the latter, which feel OK on a Sun SPARCstation
4, but you may need to tweak and tune them a bit
to make the game run optimally smooth on your
machine -- especially if it has a slow processor.
By Karl Hörnell, April 8