XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX  TETRI DEMO  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

    A self-performing TETRI game providing a score over 10,000 points (HP49)         

Peter Geelhoed was the first player getting a score of more then 10,000 points
in the TETRI game on this site. TDEMO is a self-performance of his game. You 
need only to press the OK-option after starting the DEMO. To watch this game
may be useful for beginners and for those who aim at surviving level 11 which
is extremely difficult. If somebody was successful he should inform me.
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TETRI uses the PICT environement. Hence, save your own graphic if necessary.
EXACT SCORE COMPUTATION IN LEVEL n: Precisely 2n+16 lines have to be erased.
Each dropping adds n points to the score and each erased line 2n additional 
points. When successfully completing level n, a bonus of c(n+1)^2 points is
added to the score where c is defined above. Hence, level n contributes at
least c(n+1)^2+n^2+2n(n+16)+2n(2n+16)=c(n+1)^2+7n^2+64n points to the score.
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 Wolfgang Rautenberg, raut@math.fu-berlin.de  www.math.fu-berlin.de/usr/raut