<s>
Edax	B-Application
is	O
an	O
Othello-playing	O
computer	O
game	O
,	O
capable	O
of	O
playing	O
the	O
game	O
at	O
expert	O
levels	O
,	O
similar	O
to	O
how	O
others	O
(	O
e.g.	O
</s>
<s>
Edax	B-Application
was	O
written	O
by	O
Richard	O
Delorme	O
in	O
1998	O
,	O
and	O
continues	O
to	O
be	O
regularly	O
updated	O
.	O
</s>
<s>
Edax	B-Application
’s	O
expert	O
level	O
play	O
is	O
achieved	O
and	O
evolved	O
utilizing	O
various	O
algorithms	O
.	O
</s>
<s>
Notable	O
among	O
them	O
are	O
:	O
bitboard	B-Application
move	O
generator	O
,	O
negascout	B-General_Concept
tree	B-Algorithm
search	I-Algorithm
,	O
multi-probcut	O
selective	O
search	O
,	O
parallel	O
search	O
using	O
the	O
Young	O
Brother	O
Wait	O
concept	O
,	O
and	O
pattern	O
based	O
evaluation	O
function	O
.	O
</s>
<s>
Edax	B-Application
's	O
source	O
code	O
is	O
available	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
