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descriptionToga EmptyToga

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Toga II 2.0 (WB/UCI)
by Fabien Letouzey, Thomas Gaksch, Chris Formula & Jerry Donald
C++ source; Win32, Linux32, Android
- "significantly stronger than previous Toga versions"
- compile is by Jim Ablett
- futility margin is now dependent on played move count
- razoring full_quiescence() bounds fixed (thanks to Lucas Braesch)
- several eval() bounds fixed
- improved pawn shelter
- improved knight outpost
- improved bishop mobility
- new endgame material adjustments
- piece values tweaked
- egbb bugfix (Teemu Pudas)
http://www.computerchess.info/tdbb/phpBB3/download/file.php?id=1395

descriptionToga EmptyRe: Toga

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Quoting Jerry Donald from Talkchess today

Quote:

Dear All,

I have found a bug which affects playing strength significantly. This is probably why results are not as good as expected.

I will post the fix asap. The previous version is probably still slightly stronger than 1.4beta5c, but I recommend waiting for the fixed version.

My sincere apologies to the community.

Jerry

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Toga II 2.02 (bugfix) released

J Donald wrote:
The new fixed version is at
http://www.computerchess.info/tdbb/phpBB3/download/file.php?id=1396

I have not been able to test it to verify the strength increase over Toga II 2.0, but the bug is gone.

descriptionToga EmptyRe: Toga

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Some more links to the fixed version:

Toga II 2.02 JA

rapidshare.com/files/17206857...-II-202-ja.zip
http://filedap.com/zuy1cok7yldw/toga-II-202-ja.zip.html
uptobox.com/mpzqaj9cur9b

Thanks to Jerry Donald

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Toga Returns 1.0 JA
mediafire.com ?abnrr38m2eboyzk

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Code:

Games Completed = 1000 of 1000 (Avg game length = 14.059 sec)
Settings = RR/32MB/2000ms+100ms/M 700000cp for 7 moves, D 150 moves/EPD:E:\LittleBlitzer\openings.epd(4000)
Time = 3595 sec elapsed, 0 sec remaining

 1.  Toga II 2.02 JA          535.0/1000   363-293-344     (L: m=293 t=0 i=0 a=0)   (D: r=257 i=47 f=27 s=1 a=12)   (tpm=108.8 d=11.53 nps=0)
 2.  Toga Returns 1.0          465.0/1000   293-363-344     (L: m=363 t=0 i=0 a=0)   (D: r=257 i=47 f=27 s=1 a=12)   (tpm=108.9 d=11.45 nps=0)

descriptionToga EmptyRe: Toga

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easl wrote:

weak engine
it crashes when I try to play a move.

descriptionToga EmptyRe: Toga

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Code:

                            1  2  3  4  5  6  7  8  9 10 11
1  Toga II 2.02        +64  1  ½  1  ½  0  ½  1  0  ½  1  ½  6.5/11
2  Toga Returns 1.0    -64  0  ½  0  ½  1  ½  0  1  ½  0  ½  4.5/11
TC : 5 min + 5 sec

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Toga Returns 1.1 - based on Toga 2.0SE and Cyclone
http://www.spaadyshare.com/22NNNE5GO1BJ/Toga_Returns_1.1.rar

descriptionToga EmptyRe: Toga

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Code:

Games Completed = 1000 of 1000 (Avg game length = 13.686 sec)
Settings = RR/32MB/2000ms+100ms/M 700000cp for 7 moves, D 150 moves/EPD:E:\LittleBlitzer\openings.epd(4000)
Time = 3506 sec elapsed, 0 sec remaining

 1.  Toga II 2.02               529.5/1000   343-284-373     (L: m=284 t=0 i=0 a=0)   (D: r=270 i=63 f=32 s=0 a=8)   (tpm=108.3 d=11.21 nps=0)
 2.  Toga Returns 1.1           470.5/1000   284-343-373     (L: m=343 t=0 i=0 a=0)   (D: r=270 i=63 f=32 s=0 a=8)   (tpm=108.5 d=10.93 nps=0)

descriptionToga EmptyRe: Toga

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Isn't there already a Toga II 3.12?

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Toga II 3.1.3 (old version lol )
mediafire.com ?eb6mc2zywzj

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tks...jnhes

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Toga II 3.0 JA

- scores 64% against previous Toga versions at various time controls, so should be a decent strength improvement.
- Multi-PV fixed
* For more details see readme.txt where a full list of changes may be found.

http://www.computerchess.info/tdbb/phpBB3/download/file.php?id=1402

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Toga II 4.0
mediafire.com file/4c8m5lejoo7fi3d/TogaII40.zip

Dear all,

Happy New Year! It is my pleasure, after a break of several years from computer chess, to release Toga II 4.0.

Strength

Self-play results:
+80 elo at 4' + 0.04' on 1 thread after 4000 games
+85 elo at 10' + 0.1' on 4 threads after 2000 games

So while I doubt the rating lists will show +80 elo it should be significantly stronger than Toga II 3.0 or any other Fruit derivative and also one of the strongest array-based engines in the world. Needless to say, Stockfish and the other top engines still smash it though ...

Compiles

- The IntelPGO compiles should be the fastest. However, if there are any problems, GCC and Intel non-PGO compiles are also provided.
- The x64 compile runs about 10% faster than the w32 compile on my machines.
- At this stage I do not have Linux, Mac or Android compiles. Hopefully someone will provide these at some stage.

Major changes

For a full list of changes since Toga II 3.0, see readme.txt in the package. The major changes are:
- code tidy-up, removed a lot of unused / defunct code and fixed a few bugs.
- Toga II can now use up to 16 GB hash and up to 64 threads, and the lazy SMP design has been tweaked.
- fixed aspiration windows, and skip fail-high research for single-thread competitive games (same patch as SF tested a day ago).
- removed egbb support. Instead I plan to add support for Ronald De Man's excellent syzygy bases for future releases.
- added eval pruning (also called static null move pruning), and move count based pruning;
- improved null move: reduction (3 + depth/4) from Stockfish used, and double null move avoided;
- better usage of hash in quiescent search;
- bad captures reduced less;
- history aging.

Have fun!

Jerry

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Toga II 4.01
mediafire.com file/xeukohvobjobbv4/TogaII401.zip

I've added the Mac compile to the package. Also a very small bugfix affecting only users using more than 1 GB hash, and I made the default hash the same for both 64-bit and 32-bit in order to avoid confusion. No need for retesting or similar, no functional change otherwise.

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