<s>
Tetris	B-Application
Classic	I-Application
is	O
a	O
1992	O
puzzle	O
video	O
game	O
developed	O
and	O
published	O
by	O
Spectrum	O
HoloByte	O
for	O
DOS	B-Device
systems	O
.	O
</s>
<s>
It	O
is	O
an	O
adaptation	O
of	O
the	O
1985	O
Soviet	O
video	O
game	O
Tetris	B-Device
,	O
which	O
was	O
first	O
released	O
in	O
North	O
America	O
in	O
1988	O
.	O
</s>
<s>
Spectrum	O
HoloByte	O
subsequently	O
developed	O
a	O
series	O
of	O
annual	O
spin-off	O
titles	O
for	O
Tetris	B-Device
,	O
and	O
intended	O
to	O
take	O
advantage	O
of	O
improvements	O
in	O
computer	O
technology	O
since	O
the	O
original	O
game	O
's	O
release	O
;	O
for	O
Tetris	B-Application
Classic	I-Application
,	O
they	O
showcased	O
the	O
Video	B-Protocol
Graphics	I-Protocol
Array	I-Protocol
(	O
VGA	B-Protocol
)	O
standard	O
via	O
illustrations	O
depicting	O
scenes	O
from	O
Alexander	O
Pushkin	O
's	O
poem	O
Ruslan	O
and	O
Ludmila	O
,	O
as	O
well	O
as	O
a	O
soundtrack	O
consisting	O
of	O
selections	O
from	O
Mikhail	O
Glinka	O
's	O
opera	O
adaptation	O
of	O
the	O
poem	O
.	O
</s>
<s>
Tetris	B-Application
Classic	I-Application
is	O
a	O
puzzle	O
video	O
game	O
in	O
which	O
pieces	O
consisting	O
of	O
four	O
squares	O
in	O
seven	O
shapes	O
descend	O
into	O
an	O
empty	O
pit	O
.	O
</s>
<s>
A	O
non-timed	O
game	O
ends	B-Application
prematurely	I-Application
if	O
the	O
pieces	O
reach	O
the	O
top	O
of	O
the	O
pit	O
.	O
</s>
<s>
In	O
the	O
Tetris	B-Application
Classic	I-Application
method	O
,	O
bonus	O
points	O
are	O
awarded	O
if	O
a	O
piece	O
completes	O
two	O
or	O
more	O
lines	O
at	O
once	O
.	O
</s>
<s>
Tetris	B-Application
Classic	I-Application
includes	O
five	O
basic	O
modes	O
of	O
play	O
:	O
single-player	O
,	O
cooperative	O
,	O
competitive	O
,	O
dual	O
pit	O
,	O
and	O
head-to-head	O
.	O
</s>
<s>
The	O
head-to-head	O
mode	O
is	O
similar	O
to	O
the	O
dual	O
pit	O
mode	O
,	O
but	O
is	O
played	O
between	O
two	O
separate	O
computers	O
connected	O
by	O
a	O
null	O
modem	O
serial	O
cable	O
or	O
a	O
NetWare	B-Operating_System
local	B-General_Concept
area	I-General_Concept
network	I-General_Concept
.	O
</s>
<s>
Tetris	B-Device
was	O
created	O
in	O
1985	O
by	O
Alexey	O
Pajitnov	O
,	O
a	O
researcher	O
for	O
the	O
computing	O
center	O
of	O
the	O
Soviet	O
Academy	O
of	O
Sciences	O
,	O
and	O
originally	O
programmed	O
by	O
Moscow	O
State	O
University	O
student	O
Vadim	O
Gerasimov	O
.	O
</s>
<s>
The	O
Soviet	O
Academy	O
of	O
Sciences	O
licensed	O
the	O
game	O
's	O
commercial	O
rights	O
to	O
Elektronorgtechnica	O
(	O
Elorg	O
)	O
,	O
and	O
through	O
the	O
combined	O
efforts	O
of	O
Pajitnov	O
,	O
Elorg	O
,	O
and	O
American	O
publisher	O
Spectrum	O
HoloByte	O
,	O
Tetris	B-Device
gained	O
rapid	O
popularity	O
in	O
the	O
United	O
States	O
upon	O
its	O
release	O
there	O
in	O
1988	O
.	O
</s>
<s>
This	O
success	O
encouraged	O
Spectrum	O
HoloByte	O
to	O
release	O
annual	O
spin-offs	O
,	O
including	O
Welltris	O
(	O
1989	O
)	O
,	O
Faces	B-Application
...	I-Application
tris	I-Application
III	I-Application
(	O
1990	O
)	O
,	O
Wordtris	O
(	O
1991	O
)	O
,	O
and	O
Super	O
Tetris	B-Device
(	O
1991	O
)	O
.	O
</s>
<s>
From	O
the	O
time	O
of	O
Tetris'''s	O
creation	O
onward	O
,	O
computer	O
technology	O
advanced	O
,	O
granting	O
improved	O
graphics	O
,	O
audio	O
systems	O
,	O
pointing	O
devices	O
,	O
networks	O
,	O
and	O
processing	O
speeds	O
.	O
</s>
<s>
Spectrum	O
HoloByte	O
sought	O
to	O
take	O
advantage	O
of	O
these	O
improvements	O
by	O
creating	O
an	O
upgraded	O
version	O
of	O
Tetris	B-Device
.	O
</s>
<s>
The	O
game	O
showcases	O
256-color	O
VGA	B-Protocol
graphics	I-Protocol
,	O
and	O
also	O
supports	O
16-color	O
EGA	B-Device
and	O
Tandy	O
1000	O
displays	O
.	O
</s>
<s>
The	O
game	O
's	O
copy	B-Application
protection	I-Application
consists	O
of	O
a	O
randomly-selected	O
trivia	O
question	O
about	O
Ruslan	O
and	O
Ludmila	O
,	O
Pushkin	O
,	O
or	O
Glinka	O
,	O
the	O
answer	O
to	O
which	O
is	O
located	O
in	O
the	O
game	O
's	O
manual	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
in	O
July	O
1992	O
for	O
IBM	B-Operating_System
PC	I-Operating_System
DOS	I-Operating_System
and	O
MS-DOS	B-Application
systems	O
.	O
</s>
<s>
It	O
was	O
later	O
released	O
as	O
a	O
part	O
of	O
Spectrum	O
HoloByte	O
's	O
1994	O
compilation	O
title	O
Tetris	B-Device
Gold	I-Device
.	O
</s>
<s>
Jeane	O
DeCoster	O
and	O
David	O
Crook	O
of	O
the	O
Los	O
Angeles	O
Times	O
,	O
in	O
a	O
joint	O
review	O
with	O
Super	O
Tetris	B-Device
,	O
found	O
the	O
game	O
to	O
be	O
unchanged	O
from	O
the	O
original	O
version	O
despite	O
the	O
enhanced	O
presentation	O
and	O
added	O
competitive	O
mode	O
.	O
</s>
<s>
Marcus	O
Höfer	O
of	O
Aktueller	O
Software	O
Markt	O
,	O
in	O
a	O
negative	O
review	O
,	O
felt	O
that	O
the	O
game	O
's	O
price	O
was	O
unjustified	O
for	O
its	O
minimal	O
new	O
features	O
,	O
especially	O
given	O
the	O
original	O
game	O
's	O
shareware	B-License
status	O
.	O
</s>
<s>
He	O
suggested	O
that	O
the	O
title	O
be	O
ignored	O
by	O
those	O
who	O
already	O
own	O
Super	O
Tetris	B-Device
as	O
well	O
as	O
Tetris''	O
players	O
satisfied	O
with	O
single-player	O
gameplay	O
and	O
who	O
do	O
not	O
value	O
attractive	O
background	O
graphics	O
.	O
</s>
