<s>
Chess	B-Application
software	I-Application
comes	O
in	O
different	O
forms	O
.	O
</s>
<s>
A	O
chess	B-Application
playing	O
program	O
provides	O
a	O
graphical	O
chessboard	O
on	O
which	O
one	O
can	O
play	O
a	O
chess	B-Application
game	O
against	O
a	O
computer	O
.	O
</s>
<s>
Such	O
programs	O
are	O
available	O
for	O
personal	B-Device
computers	I-Device
,	O
video	B-Device
game	I-Device
consoles	I-Device
,	O
smartphones/tablet	O
computers	O
or	O
mainframes/supercomputers	O
.	O
</s>
<s>
A	O
chess	B-Application
engine	I-Application
generates	O
moves	O
,	O
but	O
is	O
accessed	O
via	O
a	O
command-line	B-Application
interface	I-Application
with	O
no	O
graphics	O
.	O
</s>
<s>
A	O
dedicated	O
chess	B-Application
computer	I-Application
has	O
been	O
purpose	O
built	O
solely	O
to	O
play	O
chess	B-Application
.	O
</s>
<s>
A	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
allows	O
one	O
to	O
import	O
and	O
load	O
an	O
engine	O
,	O
and	O
play	O
against	O
it	O
.	O
</s>
<s>
A	O
chess	B-Application
database	O
allows	O
one	O
to	O
import	O
,	O
edit	O
,	O
and	O
analyze	O
a	O
large	O
archive	O
of	O
past	O
games	O
.	O
</s>
<s>
This	O
list	O
contains	O
only	O
chess	B-Application
engines	I-Application
for	O
which	O
Wikipedia	O
articles	O
exist	O
yet	O
and	O
therefore	O
is	O
very	O
incomplete	O
.	O
</s>
