<s>
IPPOLIT	B-Application
is	O
an	O
open-source	B-Application
chess	B-Application
program	I-Application
released	O
by	O
authors	O
using	O
pseudonyms	O
,	O
Yakov	O
Petrovich	O
Golyadkin	O
,	O
Igor	O
Igorovich	O
Igoronov	O
,	O
Roberto	O
Pescatore	O
,	O
Yusuf	O
Ralf	O
Weisskopf	O
,	O
Ivan	O
Skavinsky	O
Skavar	O
,	O
and	O
Decembrists	O
.	O
</s>
<s>
The	O
program	O
is	O
a	O
console	B-Device
application	I-Device
that	O
communicates	O
with	O
a	O
chess	O
Graphical	B-Application
User	I-Application
Interface	I-Application
(	O
GUI	B-Application
)	O
via	O
standard	O
Universal	B-General_Concept
Chess	I-General_Concept
Interface	I-General_Concept
protocol	O
.	O
</s>
<s>
IPPOLIT	B-Application
is	O
a	O
bitboard	B-Application
chess	B-Application
engine	I-Application
optimized	O
for	O
64-bit	B-Device
architecture	I-Device
with	O
native	O
support	O
for	O
both	O
32-bit/64	O
-bit	O
Linux	B-Application
and	O
Windows	O
operating	O
systems	O
.	O
</s>
<s>
With	O
about	O
3100	O
ELO	O
it	O
is	O
listed	O
in	O
TOP	O
50	O
strongest	O
chess	B-Application
programs	I-Application
.	O
</s>
<s>
IPPOLIT	B-Application
,	O
released	O
on	O
May	O
2	O
,	O
2009	O
,	O
was	O
the	O
first	O
release	O
of	O
the	O
series	O
.	O
</s>
<s>
,	O
released	O
in	O
September	O
2009	O
,	O
was	O
the	O
second	O
installment	O
of	O
the	O
IPPOLIT	B-Application
series	O
.	O
</s>
<s>
,	O
released	O
in	O
January	O
2010	O
,	O
added	O
Multi-core	B-Architecture
support	O
,	O
and	O
was	O
the	O
third	O
installment	O
of	O
the	O
IPPOLIT	B-Application
series	O
.	O
</s>
<s>
,	O
released	O
in	O
January	O
2010	O
,	O
is	O
the	O
fourth	O
and	O
current	O
project	O
code	O
name	O
of	O
the	O
IPPOLIT	B-Application
series	O
.	O
</s>
<s>
It	O
features	O
,	O
but	O
not	O
limited	O
to	O
,	O
,	O
Monte-Carlo	B-Application
Tree	I-Application
Search	I-Application
,	O
and	O
Chess960	O
.	O
</s>
<s>
IvanHoe	O
uses	O
a	O
decrementing	O
versioning	B-Architecture
scheme	O
.	O
</s>
<s>
The	O
latest	O
release	O
includes	O
source-code	O
for	O
a	O
Java	B-Language
GUI	B-Application
,	O
</s>
<s>
IPPOLIT	B-Application
was	O
initially	O
prohibited	O
from	O
many	O
computer	O
chess	O
websites	O
after	O
the	O
author	O
of	O
the	O
chess	B-Application
engine	I-Application
Rybka	B-Application
claimed	O
it	O
to	O
be	O
a	O
clone	B-General_Concept
of	O
his	O
program	O
.	O
</s>
<s>
IPPOLIT	B-Application
authors	O
have	O
denied	O
the	O
accusation	O
.	O
</s>
