English

Español

Another versions

 
- Old Opening Book
 
DanaSah had opennings book of Sune Fischer (Frenzee) from the version 1.3.4 until version 2.85k. Download the books and place them in the same folder of the program. frenzeebook.zip
 
******************************************************************************************************
Eire, eire.zip (ELO ~ 1500)
 
DanaSah originally was called Eire, Eire is the name of a pub where I live, the program was thought to play a tournament in this pub against other players. The program is weak, it doesn't recognize the rule of draw by repetition (very bad endgame). The evaluation is material and pieces-squares tables. It works in Arena.
 
****************************************************************************************************** 
Danasah 1.0, 16-01-2005 danasah.zip (ELO ~ 1850)

Frist public version. It works in Arena.

****************************************************************************************************** 
DanaSah 1.1, 06-02-2005 danasah11.zip (ELO 1970)

Corrected a bug in the generator of captures. It improves the compatibility with Winboard gui.

****************************************************************************************************** 
DanaSah 1.2, 01-03-2005 danasah12.zip (ELO 1992)

Adaptive null move, little stronger tactically.

****************************************************************************************************** 
DanaSah v1.3.4, 19-04-2005 danasah134.zip (ELO 2082)

Corrected bug in the rule of the 50 moves and in promotions. It has improved the structure of pawns, of rooks in open files, little  king's security. Opening books.

****************************************************************************************************** 
DanaSah v1.4.1, 07-06-2005 danasah141.zip (ELO 2111)

Added hash tables. The hash gives 1 ply more than depth,  4 in the endgame.

******************************************************************************************************
DanaSah v1.5.b2, 10-06-2005 danasah15b2.zip (ELO 2152)

Lazy eval gives many more nodes per second, maybe 30 % more quick and more bonus for passed pawns.

******************************************************************************************************
DanaSah v1.6, 06-07-2005 danasah16.zip (ELO 2182)

Added a simple history prunning. Material and king position in makemove function (30% faster).

******************************************************************************************************
DanaSah v1.7p, 08-12-2005 danasah17p.zip (ELO 2259)

Added mobility to the evaluation, slower but it play better posicional. Function ponder.

****************************************************************************************************** 
DanaSah v1.8.3, 02-01-2006 danasah183.zip (ELO ~ 2250)

The program can search endgames in Scorpio's bitbases (4 men).

******************************************************************************************************
 DanaSah v2.0, 20-01-2006 danasah20.zip (ELO ~ 2250)

Changed random numbers for hash tables, since collisions could take place and to cause silly moves.

****************************************************************************************************** 
DanaSah v2.03, 06-02-2006 danasah203.zip (ELO 2269)

Corrected a bug, it didn't load bitbases in Winboard and it failed some occasions in Arena.

****************************************************************************************************** 
DanaSah v2.15, 15-04-2006 danasah215.zip (ELO ~ 2300)

Changed history prunning.

****************************************************************************************************** 
DanaSah v2.16, 21-04-2006 danasah216.zip (ELO CGET 2329)

Added king security, now is controlled squares around of king.

****************************************************************************************************** 
DanaSah v2.26, 12-06-2006 danasah226.zip (ELO WBEC 2427)

LMR is applied also in nodes pv and alone applied when 3 legal moves have been made.

****************************************************************************************************** 
DanaSah v2.44, 11-09-2006 danasah244.zip (ELO CCRL  2469)

Bug in the count of nodes that could provoke an illegal move and another in the king's security. Add knowledge of bishops of different color, pawn in seventh and pawn endgame extention.

******************************************************************************************************
DanaSah v2.73, 13-11-2006 danasah273.zip (ELO CCRL 2482)

Fischer time management improved. Evaluation cache. Delta prunning in quiesce. Little changes in evaluation (pawn passed). The extension of pawns in seventh has been deactivated.

****************************************************************************************************** 
DanaSah v2.85k  13-02-2007 danasah285k.zip  Source-Código (ELO CCRL  2507 40/40)
 
It support for 5 men in Daniel Shawul bitbases. Added pawn in seventh and recapture extensions. Small changes in bonus for certain changes of pieces. New command analyze.
******************************************************************************************************
DanaSah v.3.03  06-04-2007 danasah303.zip  Source-Código ( ELO CGET 2446 40/4)

Now DanaSah supports openinigs books of Rebel/Prodeo. A small change in the LMR has been introduced thinking about long times and small changes in the evaluation have become (pieces-squares,  mobility…).

******************************************************************************************************
DanaSah v.3.13  04-06-2007 danasah313wb2uci.zip (ELO CCRL 2519 40/40)

In this version had been made minor changes to the evaluation, especially in the structure of pawns.

******************************************************************************************************
DanaSah v.3.63  23-02-2008 danasah363frcpgowb2uci.zip (ELO CCRL 2526 40/40)

Support for the variant FRC or Chess960 in winboard interfaces (Arena, Winboard_F, ChessGUI). Corrected a small bug in the evaluation.

******************************************************************************************************
DanaSah v.3.70 FRC  03-06-2008 danasah370.zip
 
Added Razoring, Tempo, bench command and ability to change in the file danasah.ini the % of the time spent in the last move(s) in time control with increase or in time control x/y.
 
******************************************************************************************************
DanaSah v.3.97b FRC   10-09-2008 danasah397b.zip (engine+ wb2uci+books+source included). Use only danasah397b_UCI.exe for interfaces or GUI uci.

Here a versión for linux -->  danasah397b-linux.zip

Changed:

  • Bugfix for control time x moves y minutes.
  • Changes in time management and now access to bitbases are made during the search instead of the evaluation, all designed to avoid lost time in bullet and blitz games.
  • Now DanaSah can play correctly in depth fixed, by an error from the first version she was very weak in this mode.
  • It has been optimized parts of the program, for example hash now is dynamic, order of moves is faster, also the location of pawns and bishops, perhaps we now have a 15% more nodes.
  • LMR and razoring are more aggressive, we have a new function that allows us to cut the quiesce and better order.
  • The evaluation between middlegame and endgame now is softer, some changes in the pair of bishops, bad bishop, the pair of Knight and rooks. We changed the value of knigth and rooks as the number of pawns. When the program goes above change pieces and when goes down change pawns.
  • Small changes in the hash and extensions.
******************************************************************************************************
 DanaSah v.4.24 for windows 13-05-2009 danasah424-windows.zip (engine+ wb2uci+books+source included). Use only danasah424_UCI.exe for interfaces or GUI uci.

Changed:

  • Bugfix for control time, version 3.97b lost in bullet and blitz.
  • Bugfix for chess960
  • Bugfix for ChessGUI
  • Little changes in the search and evaluation, similar strengh to version 3.97b
******************************************************************************************************
DanaSah v.4.45 for windows 21-05-2010 danasah445.zip (engine + wb2uci+books+source included). Use only danasah445_UCI.exe for interfaces or GUI uci.

Changed:

  • Changes in the search. Similar strength to version 4.24.
******************************************************************************************************