<s>
It	O
was	O
released	O
in	O
1992	O
for	O
MS-DOS	B-Application
and	O
Macintosh	B-Device
.	O
</s>
<s>
There	O
are	O
also	O
varieties	O
of	O
traditional	O
puzzles	O
,	O
such	O
as	O
the	O
Tower	B-Language
of	I-Language
Hanoi	I-Language
and	O
Nim	B-Application
.	O
</s>
