<s>
Xonix	B-Application
is	O
a	O
video	O
game	O
written	O
for	O
MS-DOS	B-Application
compatible	O
operating	O
systems	O
by	O
Ilan	O
Raab	O
and	O
Dani	O
Katz	O
.	O
</s>
<s>
It	O
is	O
similar	O
in	O
concept	O
to	O
Taito	O
's	O
1982	O
arcade	O
video	O
game	O
Qix	B-Device
.	O
</s>
<s>
Xonix	B-Application
was	O
popular	O
at	O
the	O
Dorodnicyn	O
Computing	O
Centre	O
,	O
where	O
Dmitry	O
Pavlovsky	O
,	O
one	O
of	O
the	O
original	O
developers	O
of	O
Tetris	B-Device
,	O
was	O
a	O
computer	O
engineer	O
.	O
</s>
<s>
Pavlovsky	O
and	O
Vadim	O
Gerasimov	O
wrote	O
their	O
own	O
version	O
of	O
Xonix	B-Application
called	O
Antix	B-Application
.	O
</s>
<s>
It	O
was	O
first	O
developed	O
for	O
the	O
Electronika	B-Device
60	I-Device
and	O
then	O
ported	O
to	O
MS-DOS	B-Application
by	O
Pavlovsky	O
and	O
Vadim	O
Gerasimov	O
.	O
</s>
