Csabo's 1K Tetris
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A game in 1024 bytes for the Commodore C16 or Plus/4.
Written by Csaba Pankaczy aka Csabo/LOD.
Finished 2002.09.15 - submitted for the 2002 1K GameCompo.

Description:
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This is an implementation of the classic Tetris game for
the C16/Plus4. It has a unique feature that allows the
player to adjust the width of the "pit".

Controls:
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Cursor Left: move current piece left.
Cursor Right: move current piece right.
Cursor Up: rotate current piece counter-clockwise.
Cursor Down: drop current piece.                  

"1": make the pit width wider.
"2": make the pit width narrower.
Warning! Changing the width of the pit starts a new game.

(after game over) Press Space to start a new game.

Requirements:
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Any Commodore C16 or Plus/4 (or an emulator of course).
The game works with both PAL and NTSC systems!
This software runs fine on all known Plus/4 emulators.

Technical details:
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It's classic Tetris, what can I say? Okay, one note:
While the piece is dropping, it can still be moved. 

Try the game with a wider or narrower pit for fun.

The development time was lots and lots of afternoons and
evenings spread over about 3 months. The code is very
optimised, and it went through lots of testing. This game
is believed to be bug-free.

Cheats/etc:
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Use "POKE 4843, <speed>" to adjust game speed (e.g. if you
find it too difficult or too easy.) Lower numbers mean a 
faster (and harder) game. The default speed is 15.

Use "POKE 4653, <speed>" to adjust how responsive the
keyboard is. The default value is 8, which I found to be
comfortable. Lower values mean the keys repeat faster.

Use "POKE 4826, 169 : POKE 4827, 62" for a cheat. This makes the
game kind of pointless.

Make sure to use the above pokes before starting the game,
since this game cannot be successfully restarted after reset.

[eof]