40/5 Tournament with Glaurung,Crafty,OliThink et. al.

[OliverBr]

Another tourney, same time control, but only the 4 strongest engines playing more games.

OliThink5.1.2 epsilon will soon be released.

Code: Select all

   Engine         Score          Gl         Cr         Ol         Ol    S-B
1: Glaurung       22.0/30 ·········· 1001111=00 10111=1110 1111110111  259.00
2: Crafty         19.0/30 0110000=11 ·········· 11=1001111 =11011110=  237.50
3: OliThink512eps 11.0/30 01000=0001 00=0110000 ·········· 110=10=1==  150.50
4: OliThink511    8.0/30  0000001000 =00100001= 001=01=0== ··········  123.00

60 games played / Tournament finished
Name of the tournament: Arena tournament29
Site/ Country: TARN, United Kingdom
Level: Tournament 40/5
Hardware: Dual AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ 2412 MHz with 1,534 MB Memory
Operating system: Microsoft Windows XP Home Edition Service Pack 2 (Build 2600)

The result says, that OliThink5.1.2 Elos is about 200 points less than Craftys/Glaurungs. This would mean a ELO about 2300, right?

Code: Select all

-----------------Crafty-----------------
Crafty - Glaurung            : 4.5/10 4-5-1 (0110000=11)  45%   -35
Crafty - OliThink511         : 7.0/10 6-2-2 (=11011110=)  70%  +147
Crafty - OliThink512eps      : 7.5/10 7-2-1 (11=1001111)  75%  +191
-----------------Glaurung-----------------
Glaurung - Crafty            : 5.5/10 5-4-1 (1001111=00)  55%   +35
Glaurung - OliThink511       : 9.0/10 9-1-0 (1111110111)  90%  +382
Glaurung - OliThink512eps    : 7.5/10 7-2-1 (10111=1110)  75%  +191
-----------------OliThink511-----------------
OliThink511 - Crafty         : 3.0/10 2-6-2 (=00100001=)  30%  -147
OliThink511 - Glaurung       : 1.0/10 1-9-0 (0000001000)  10%  -382
OliThink511 - OliThink512eps : 4.0/10 2-4-4 (001=01=0==)  40%   -70
-----------------OliThink512eps-----------------
OliThink512eps - Crafty      : 2.5/10 2-7-1 (00=0110000)  25%  -191
OliThink512eps - Glaurung    : 2.5/10 2-7-1 (01000=0001)  25%  -191
OliThink512eps - OliThink511 : 6.0/10 4-2-4 (110=10=1==)  60%   +70

[Michael Sherwin]

My guess is CCRL: 2400 < Olithink 5.12 Elos < 2500.

[Tord Romstad]

Tord,

Any news of a Glaurung 2.0.2 or 2.1 ?

Hello Martin,

No news at the moment. I've not done anything significant with Glaurung 2 recently, apart from trimming away some fat in order to make it easier to port the program to Apple's handheld devices. I don't expect to find any time to improve the engine on this side of the summer, but perhaps I'll be able to work a little bit on it some time in the autumn. Because of various other hobbies and commitments, I won't be able to do very much, but fortunately Glaurung 2 is still very unpolished and easy to improve, so it is not entirely impossible that there will be a significantly stronger version before the end of the year.

Tord

[Tord Romstad]

Olithink is an awesome program, by the way -- possibly my favorite open source engine. I've learnt most of what I know about bitboards from your source code, and much of my own bitboard code still has similarities to yours (except that my code is far more verbose, far less elegant, and probably slower). Keep up the good work!

Thank you. Now I am very flattered, because it's *you* who wrote the -by far- best open source program.

Thanks, but I don't think there is such a thing as a "best" open source program. It depends on what you are looking for (features, readability, strength, conciseness, portability, scalability, style of play, etc.). In any case, I'm of course always happy when at least some people find my code good for some purposes.

Crafty may be almost as strong as Glaurung, but your program is so much more readable!

Crafty is a much more low-level and feature-packed program than Glaurung, it is therefore no surprise that it is somewhat more difficult to read. On the other hand, it is significantly faster and stronger, at least when given sufficiently fast hardware.

Tord

[Ovyron]

fortunately Glaurung 2 is still very unpolished and easy to improve, so it is not entirely impossible that there will be a significantly stronger version before the end of the year.

Glaurung is a great and strong program so it's good to know that a big improvement is still expected and I'm looking forward for it