Name: Dragon
Programmer: Bruno LUCAS
Country: France
Version: 4.5
ELO: ~ 2.475
Playing styl: Positional


Dragon 4.0:
"Is based on bitboard. It has the evaluation of Dragon 3.X. The search
is updated. I remove bad extensions greedy in nodes and time. The main
difference beetween Dragon 4.0 and Dragon 3.x is that the writing of
Dragon 4.0 shows that Dragon 3 has many incoherences in search extension,
sort of moves and bad test in evaluation. The cleaning of the source are
very benefit. The change I made in Dragon 4 are more rigourous that the
change I made in Dragon 3.

Dragon 4.1:
Slightly improvement in search and evaluation. Use of the opening book
with random. In future I continue the improvement in the search. In
rewrite the evaluation with a improvement on pawn structure, King
security/attack and engames."

Dragon 4.2:
Correction UCI promotion, WinBoard with ponder, detect for announce mate,
draw correction hashtable, Correction in the isolated pawns.

Version 4.2.3:
Improvement passed pawn if bloked or if it has a protected, improvment in
iteration

Version 4.3:
King attack,
Fix a lot of bugs in eval: Passed pawn, connected, rook, queen tropism
use IID, bug in move sorting (when it is PV).
Introduction in learning: Generation of 2 text file.

Version 4.3.1:
Fix the problem of draw in winning position (WB)
Fix the problem of time on UCI
Fix the problem of TB on Fritz 7 Gui
For WB you must use the last Dragon4.ini (in english),

Version 4.4.3:
Little changes and improved endgame

Version 4.5:
Massy 2003 version, Dragon made the second place!
Some improvents

Protocol: UCI (setup version)
Protocol: WB II, available on WBEC Ridderkerk:
http://wbec-ridderkerk.nl/index.html

Opening book -1: Small book in setup
Opening book -2: Bigger book available on WBEC Ridderkerk:
http://wbec-ridderkerk.nl/index.html

Dragon supported: Nalimov tablebases (endgame databases):
ftp://ftp.cis.uab.edu/pub/hyatt/TB/
(three and four pieces = 31.05 Mb)


Offical results:
----------------

1997, 15th WMCCC Paris 3/11 points, ranking 33 of 34

1996, 04th France-ch Clichy 5/9 points, ranking 6 of 10
1997, 05th France-ch Clichy 4/9 points, ranking 9 of 14
1998, 06th France-ch Clichy 7/11 points, ranking 9 of 16
2000, 08th France-ch Massy 6/9 points, ranking 3 of 10
2002, 09th France-ch Massy 8/11 points, ranking 4 of 12
2003, 10th France-ch Massy 5/7 points, ranking 2 of 14

1999, 01st French programmers Massy 4/7 points, ranking 5 of 12
2000, 02nd French programmers Massy 2/6 points, ranking 7 of 10
2001, 03rd French programmers Massy 3/6 points, ranking 7 of 12
2002, 04th French programmers Massy 3/6 points, ranking 7 of 12
2003, 05th French programmers Massy 3,5/6 points, ranking 6 of 18


Trier, Germany
07.11.2003, Frank Quisinsky

