<s>
Chess	B-Application
and	I-Application
Backgammon	I-Application
Classics	I-Application
,	O
retitled	O
Chess	B-Application
Classics	O
a	O
week	O
after	O
release	O
,	O
is	O
a	O
video	O
game	O
by	O
Gameloft	O
for	O
the	O
iPod	B-Device
Nano	I-Device
(	O
3rd	O
and	O
4th	O
generation	O
)	O
,	O
the	O
iPod	B-Operating_System
classic	I-Operating_System
,	O
and	O
the	O
iPod	B-Operating_System
(	O
5th	O
generation	O
)	O
.	O
</s>
<s>
Chess	B-Application
and	I-Application
Backgammon	I-Application
Classics	I-Application
allows	O
users	O
to	O
play	O
chess	B-Application
against	O
a	O
human	O
opponent	O
,	O
or	O
a	O
CPU	B-Device
opponent	O
(	O
difficulty	O
settings	O
are	O
adjustable	O
)	O
.	O
</s>
<s>
The	O
chess	B-Application
game	O
also	O
has	O
a	O
quiz	O
mode	O
,	O
which	O
challenges	O
users	O
to	O
solve	O
situation-specific	O
problems	O
,	O
and	O
also	O
includes	O
classic	O
matches	O
actually	O
played	O
by	O
international	O
chess	B-Application
masters	O
.	O
</s>
<s>
The	O
game	O
also	O
lets	O
users	O
play	O
backgammon	B-Application
against	O
a	O
human	O
opponent	O
,	O
or	O
a	O
CPU	B-Device
opponent	O
(	O
difficulty	O
settings	O
are	O
adjustable	O
)	O
.	O
</s>
