Division 2,4th Edition:16 Engines!

[Uri Blass]

Alaric
Bright
Movei

Thanks for supporting movei.
I am not very optimistic.
I could send later version of movei that is probably slightly better than 403 10 10 10 but I did not care about it.

my notes:

1)If you believe the ccrl list then 423 is slightly better than 403 10 10 10 but this is not enough improvement that I can consider as a big improvement(here is the ccrl data)

Movei 0.08.423 2691 +24 −24 52.3% −19.4 32.0% 575
90.6%
Movei 0.08.403(10 10 10) 2650 +25 −25 46.6% +21.7 26.0% 572


Main reason for improvement of 423 relative to 403 10 10 10 is better evaluation.



2)I started to work about using hash for pruning but unfortunately my tries did not work and I will need to look at the tree to find bugs.

I plan to do it step after step and the first thing is to find why my new replacement rules do not work even when I do not use pruning.

Movei by default use hash only for order of moves(even not to avoid null move pruning) and it only replace the entry in case of entry with bigger depth.

It always has a generation number of 16 bits that is updated in every search so practically movei does not use hash information from previous searches(I plan to keep it in the near future because I do not want to have bugs that I cannot reproduce)

Uri

[swami]

Hi Alessandro,

Are you sure about picking Crafty?It doesn't matter at all if you picked 3 engines that someone else had picked,you just would give him 0.5 points more that's all and maybe you'd get more points with some better engine.Maybe Crafty plays well,but I doubt if it can get anywhere near top 3.

Hi Swami,
as I'm new to this contest and I need time to "adapt", I'm currently picking some engines that I simply like. In the previous contest it was Postmodernist because it uses the MTD(f) search, an algorithm that is only used by Kiwi, SOS and Gothmog IIRC. Now it's Crafty because it was the engine that started it all for me... Hopefully it will also bring home some surprise points!

Tony used to pick engines in similar way as yours in the last edition, one old engine,one his favourite engine and the 3rd engine that is strongest in his test results but he has recently stopped using that concept(thoughnot completely..he can't avoid Romi ) and has begun choosing 3 engines in strength order,he's improved his points.

Regards.

[swami]

Hi Uri,

Movei Progress 10 10 10 is certainly better than Movei 403 default.

CCRL ratings difference between 423 and 403 progress 10 10 10 is more enough for you to update the Movei version number.

I heard you are planning to make Movei commercial once you improve its ratings and implement FRC.

Good Luck.

Regards.

[Alessandro Scotti]

Pseudo is the top seed so I guess it is a good pick ,I'm surprised that no one has picked it in their top 3.

Pseudo is a strong engine and one I test regularly with. Because of this I'm used to see Hamsters get soundly beaten by Pseudo every day... no way I'm voting for it this time!

[swami]

Pseudo is the top seed so I guess it is a good pick ,I'm surprised that no one has picked it in their top 3.

Pseudo is a strong engine and one I test regularly with. Because of this I'm used to see Hamsters get soundly beaten by Pseudo every day... no way I'm voting for it this time!

You would become serious one day in decision making and in engine picks,and that day is not far away!

One day...and that day is not far away.

have been editing this last sentence with inappropriate phrases and I can't find the right one and that was the best I could come up with,not sure if this was quote(maybe lyrics?),google search doesn't return anything.

[Michael Sherwin]

Pseudo is the top seed so I guess it is a good pick ,I'm surprised that no one has picked it in their top 3.

Pseudo is a strong engine and one I test regularly with. Because of this I'm used to see Hamsters get soundly beaten by Pseudo every day... no way I'm voting for it this time!

I hate the idea of anything fake (except known fiction as in books and Hollywood), fake people, fake engines, etc.
I did not vote for Pseudo, because, it is not real!

[swami]

TOURNAMENT FINISHED:

Code: Select all

Engine                    Score   Al SO An Br Li Cr Uf Ps Ru Co Ab Gr Jo ET Mo Pe    S-B
01: Alaric707                 21.5/30 ·· 00 =1 =1 10 10 11 1= =1 1= 11 11 01 =1 11 1=  303.75
02: SOS-51_Arena              18.5/30 11 ·· 00 01 11 01 =1 10 =1 10 01 == 11 1= 0= =1  275.25
03: AnMon_5.60WB              18.0/30 =0 11 ·· 10 10 =1 0= 11 =0 11 == =0 1= 1= =1 01  262.50
04: Bright-0.2a               17.5/30 =0 10 01 ·· 10 11 10 01 01 == =1 11 1= 11 == 00  255.25
05: List512                   17.0/30 01 00 01 01 ·· =0 01 1= 1= 1= 11 == =1 == 11 0=  242.25
06: Crafty-21.5-win32         17.0/30 01 10 =0 00 =1 ·· 10 0= 01 0= 11 =1 11 10 11 =1  240.50
07: Ufim802                   16.5/30 00 =0 1= 01 10 01 ·· 01 == 0= 11 == 10 11 1= 1=  231.75
08: Pseudo07c                 14.0/30 0= 01 00 10 0= 1= 10 ·· == 10 0= 11 01 00 11 10  202.50
09: Ruffian_105               13.5/30 =0 =0 =1 10 0= 10 == == ·· =1 == =0 =0 01 01 10  201.25
10: Colossus2007b             13.5/30 0= 01 00 == 0= 1= 1= 01 =0 ·· == 10 == 0= =0 11  198.50
11: Abrok 6.0                 13.5/30 00 10 == =0 00 00 00 1= == == ·· 11 01 11 10 =1  182.75
12: Green Light Chess         12.5/30 00 == =1 00 == =0 == 00 =1 01 00 ·· 0= 11 == 1=  179.50
13: Jonny 2.83                12.5/30 10 00 0= 0= =0 00 01 10 =1 == 10 1= ·· 00 1= 1=  178.00
14: ET Chess                  12.0/30 =0 0= 0= 00 == 01 00 11 10 1= 00 00 11 ·· == 10  172.25
15: Movei00_8_403             11.5/30 00 1= =0 == 00 00 0= 00 10 =1 01 == 0= == ·· 11  162.50
16: Petir439                  11.0/30 0= =0 10 11 1= =0 0= 01 01 00 =0 0= 0= 01 00 ··  174.00

240 games played / Tournament is finished
Name of the tournament: Division 2 July 2007
Site/ Country: ADMIN, United States
Level: Blitz 1/1
Hardware: Intel(R) Pentium(R) 4 CPU 2.60GHz  with 248 MB Memory
Operating system: Microsoft Windows XP Professional Service Pack 2 (Build 2600)
PGN-File: D:\Arena 1.99\Tournaments\Division 2 July 2007.pgn
Website: 
E-Mail Address: 

Congrats to Peter Fendrich, Alaric used Dann Corbitt's book and it has a lot of unusual and quite unique lines in it.

Regards.

[swami]

Engines Prediction Contest:


Graham Banks
21.5,17,13.5
52

Edsel Apostol
21.5,17,11.5
50

Alessandro Scotti
21.5,17.5,17
56

Michael Sherwin
21.5,17.5,11.5 + 0.5(from Dr.Wael)
51

Tony Thomas
21.5,17.5,13.5
52.5

Pavel Hase
21.5,14,13.5
49

Pedro Castro
21.5,17.5,13.5 (+0.5 from Tony)
53.0

Dr.Wael Deeb
21.5,17.5,11.5
50.5

Alessandro Scotti 56
Pedro Castro 53
Tony Thomas 52.5
Graham Banks 52.0
Michael Sherwin 51.0
Dr.Wael Deeb 50.5
Edsel Apostol 50.0
Pavel Hase 49.0

Congrats to Alessandro Scotti!

[Graham Banks]

Hi Swami,

how do we know the total number of points?

Graham.

[swami]

Hi Swami,

how do we know the total number of points?

Graham.

Hi Graham,

I'm surprised, Add the individual points of each engines you picked and get the total