<s>
Chess	B-Application
Tiger	I-Application
is	O
a	O
strong	O
chess	B-Application
program	I-Application
developed	O
by	O
Christophe	O
Théron	O
which	O
achieved	O
a	O
number	O
of	O
tournament	O
successes	O
between	O
2000-2002	O
.	O
</s>
<s>
Although	O
still	O
commercially	O
available	O
,	O
the	O
Windows	B-Application
version	O
has	O
not	O
been	O
developed	O
recently	O
so	O
has	O
largely	O
historical	O
significance	O
only	O
.	O
</s>
<s>
It	O
is	O
known	O
for	O
its	O
high	O
level	O
of	O
strength	O
and	O
as	O
a	O
trainer	O
engine	O
to	O
help	O
beginners	O
improve	O
their	O
chess	B-Application
techniques	O
.	O
</s>
<s>
The	O
playing	O
strength	O
of	O
Chess	B-Application
Tiger	I-Application
is	O
inferior	O
to	O
better	O
known	O
programs	O
such	O
as	O
Fritz	B-Application
and	O
Shredder	B-Application
.	O
</s>
<s>
In	O
2001	O
Chess	B-Application
Tiger	I-Application
won	O
a	O
tournament	O
in	O
Buenos	O
Aires	O
ahead	O
of	O
a	O
number	O
of	O
top	O
grandmasters	O
,	O
and	O
achieved	O
a	O
rating	O
performance	O
of	O
2788	O
Elo	O
rating	O
.	O
</s>
<s>
Chess	B-Application
Tiger	I-Application
won	O
the	O
French	O
and	O
Dutch	O
Chess	B-Application
Computer	I-Application
Championships	O
three	O
times	O
each	O
.	O
</s>
<s>
Chess	B-Application
Tiger	I-Application
won	O
the	O
first	O
Berliner	O
Emanuel-Lasker	O
Computerchess-Tournament	O
in	O
October	O
2001	O
.	O
</s>
<s>
Chess	B-Application
Tiger	I-Application
is	O
designed	O
to	O
be	O
particularly	O
aggressive	O
in	O
its	O
style	O
of	O
play	O
.	O
</s>
<s>
While	O
most	O
chess	B-Application
engines	I-Application
tend	O
to	O
avoid	O
gambits	O
and	O
sacrifices	O
Chess	B-Application
Tiger	I-Application
actually	O
prefers	O
them	O
.	O
</s>
<s>
Chess	B-Application
Tiger	I-Application
calculates	O
very	O
quickly	O
even	O
in	O
relatively	O
weak	O
hardware	O
environments	O
which	O
implies	O
that	O
the	O
evaluation	O
function	O
is	O
fairly	O
'	O
light	O
 '	O
and	O
that	O
therefore	O
the	O
balance	O
between	O
speed	O
and	O
positional	O
understanding	O
is	O
weighted	O
in	O
favour	O
of	O
the	O
former	O
.	O
</s>
<s>
This	O
game	O
from	O
the	O
above-mentioned	O
2001	O
Argentina	O
Masters	O
Event	O
sees	O
Chess	B-Application
Tiger	I-Application
defeat	O
the	O
well	O
known	O
Grandmaster	O
Oscar	O
Panno	O
.	O
</s>
<s>
Panno	O
sacrifices	O
the	O
exchange	O
for	O
a	O
pawn	O
early	O
on	O
,	O
and	O
although	O
he	O
gets	O
a	O
second	O
pawn	O
he	O
struggles	O
to	O
fully	O
coordinate	O
his	O
queenside	O
pieces	O
,	O
finally	O
falling	O
for	O
a	O
tactical	O
shot	O
from	O
Chess	B-Application
Tiger	I-Application
on	O
move	O
34	O
.	O
</s>
<s>
A	O
version	O
of	O
Chess	B-Application
Tiger	I-Application
is	O
available	O
for	O
the	O
iPhone	O
and	O
other	O
mobile	O
devices	O
running	O
the	O
iOS	B-Application
Mobile	O
Operating	O
System	O
,	O
as	O
well	O
as	O
for	O
Palm	B-Operating_System
OS	I-Operating_System
.	O
</s>
