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descriptionGaviota EmptyGaviota

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Gaviota Gaviot10

Gaviota
by Miguel Ballicora
http://sites.google.com/site/gaviotachessengine/

descriptionGaviota EmptyRe: Gaviota

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Gaviota 0.84 full download (Windows, Linux, Android and book)

descriptionGaviota EmptyRe: Gaviota

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Code:

Gaviota 0.84 x64 1CPU: 2700 - 700 games (+88 to version 0.83!)

http://www.husvankempen.de/nunn/40_40%20Rating%20List/40_40%20All%20Versions/rangliste.html

descriptionGaviota EmptyRe: Gaviota

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anyone test it or not??

descriptionGaviota EmptyRe: Gaviota

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@sachin rajput wrote:
anyone test it or not??

https://www.chess2u.com/t4332-gaviota-v084-chess-tiger-2007
https://www.chess2u.com/t4348-gaviota-084-64-bit-gauntlets-ccrl-40-40
https://www.chess2u.com/t4315-cegt-rating-lists-october-02nd-2011

descriptionGaviota EmptyRe: Gaviota

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can somebody helpme i forgot how to load gaviota torrent in flash get can some body help me thanx..

descriptionGaviota EmptyRe: Gaviota

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Gaviota v0.85 released

There were several changes compared to 0.84 (last release) and it is expected to be stronger by ~50 elo

v0.85: changes compared to 0.84

31 files changed, 2156 insertions(+), 728 deletions(-)

  • Bug fixes and features

- Fix and improve checkmating algorithm for KBN vs K in cases there is no TBs
- Fix silent bug in file that links to the GTB interface
- Fix bug that did not allow to measure lags appropriately in the last version
- Analyze even when there is only one move available
- Add a parameter allow_memory_override_by_gui = on/off in the ini file, so the parameters for memory cannot be overridden by the graphical user interface

  • Changes affecting strength

- Fractional plies implemented
- Extensions, control modified
- LMR parameters modified
- Bonus for contact checks, tuned.
- Queen tables added, individual values tuned.
- Bishop tables added, individual values tuned.
- Fix time management bug: when game started from a FEN position (black to move), first move from the next control was too slow.

https://sites.google.com/site/gaviotachessengine/Home/releases/gaviotav085engine

descriptionGaviota EmptyRe: Gaviota

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Gaviota 0.85 (Soaring High Tournament)
https://www.chess2u.com/t5513-soaring-high

descriptionGaviota EmptyRe: Gaviota

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Gaviota 0.85.1

Bug fixes and features
- Fix a critical bug introduced just before v0.85 release that kill the hashtable performance
- in UCI mode, it is displayed the PV when there is only one legal move available
- tbhits are now shown in SCIDvsPC

http://sites.google.com/site/gaviotachessengine/download

descriptionGaviota EmptyRe: Gaviota

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Gaviota 0.86 (Linux, Android, Windows, and now Mac!)

Changes affecting strength

  • History heuristics modified: A “capacitor-like” system is used for aging values
  • Nullmove search results is stored in hash tables.
  • Hash table moves, when there is a hit, are properly restored as killers
  • Threat move structure implemented, used for ordering quiet moves (escape from)
  • Margin for “leaf forward pruning” adjusted.
  • LMR criteria modified (more aggressive, reduction=2 for very late moves)
  • Rook piece square tables implemented and tuned
  • Allow hashtable cutoffs in PV (back)
  • Search at root was re-structured and cleaned up
  • Rook trapped code fixed
  • Implement pawn PSTs
  • King safety and attack pressure redesigned
  • King in endgame evaluation modified
  • Futility extended to five plies, rather than four
  • Specialized evaluation and search for KQKR positions
  • Hash has been specialized for pawnless positions
  • To allow nullmove: not pawnless positions, and several pieces needed
  • Margins of futility varies with move count, values tuned
  • Tapered evaluation for pawn structure (values tuned for opening and endgame)

Bug fixes and features

  • Output of PVs in UCI was fixed
  • Delay RAM initialization until "isready" UCI command
  • Fix bug, aliasing of a variable did not allow to initialize Hash in UCI with new compiler switches (reported by Clemens Keck)
  • Update gtb-probe code with some warning silencing (v0.4.5)
  • Long PVs until checkmate, when an endgame tablebase checkmate is reported
  • Command “set” implemented to vary some internal parameters
  • Modify UCI output, PV isolated in one line (improvement on certain GUIs)
  • Fix bug when picking moves that were previous killers
  • Fix bugs in KPK internal bitbase
  • Fix empty PVs not reported in UCI


https://sites.google.com/site/gaviotachessengine/Home/releases/gaviota086engine

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Code:

Games Completed = 1000 of 1000 (Avg game length = 15.843 sec)
Settings = RR/32MB/2000ms+100ms/M 700000cp for 7 moves, D 150 moves/EPD:E:\LittleBlitzer\openings.epd(4000)
Time = 4104 sec elapsed, 0 sec remaining

 1.  Gaviota 0.86 x64           634.0/1000   478-210-312     (L: m=210 t=0 i=0 a=0)   (D: r=185 i=89 f=15 s=2 a=21)   (tpm=119.1 d=10.06 nps=750606)
 2.  Gaviota 0.85.1 x64         366.0/1000   210-478-312     (L: m=478 t=0 i=0 a=0)   (D: r=185 i=89 f=15 s=2 a=21)   (tpm=119.8 d=9.67 nps=828588)

Good result! smile

descriptionGaviota EmptyGaviota 1.0

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https://sites.google.com/site/gaviotachessengine/Home/releases/gaviotav10

The author writes:

Gaviota reached a level of maturity and completeness that makes it deserve the "1.0" version number. All the goals for that version have been reached. For instance, Gaviota now supports Multi PV.

New versions released are for Linux, Android, and Windows. They can be found the the in download section. There were several changes compared to 0.86 (last release) and it is expected to be stronger by ~85 elo. A detailed list of modifications are in the "change log" section

It is recommended that you do not use the old ini files (gaviota.ini.txt) since some switches have changed. Use the new one, or no ini file at all (options can be always be edited in the winboard or UCI graphic interface). The compressed folders for download include only a small book, as always. You can find a bigger book in the download section.

Thanks to Dann Corbit for compiling the Windows version for AVX systems (Sandy bridge Intel, bulldozer AMD, and up). That one won't work for Windows XP, though. However, there is one general compile for 64 and 32 bits. Please check which one is faster before using it. You can quickly test that from the terminal typing gaviota --benchmark to find the speed in nodes per second. Run it two or three times to make sure you get similar numbers. You are expected to see:

total nodes: 23252530
total secs : <variable>
average nps: <variable>
pos. solved: 21
pos. wrong : 3

This version is also the product of Adam Hair's efforts in testing, who is part of Team Gaviota.

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Gaviota 1.0
- new BSD build
https://sites.google.com/site/gaviotachessengine/download

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