ZaTour - Season 2

Discussion of computer chess matches and engine tournaments.

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amanjpro
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Re: ZaTour - Season 2

Post by amanjpro » Tue Jul 27, 2021 9:47 pm

Almost 80 games are played by each engine, and Zahak is in clear lead Nalwald is almost securing its position as the second (which makes it qualify for the ZuFi)

There is a fierce battle between Barbarossa, Loki and Lozza to claim the fourth spot!

Code: Select all

 N Engine              Rtng  Pts Gm      SB X  Elo Perf Za             Na             Ct             Ba             Lo             Lz             Mi            

 1 Zahak rev-a371bb864    0 62.0 80 2120.00 0 +704 77.5 ·············· 000=1=01==1=1= ===11=111111=1 1=11111111==   11=011=1=11=   =11=1110=1=111 1111=11111=111
 2 Nalwald 1.9            0 56.0 80 1972.50 2 +512 70.0 111=0=10==0=0= ·············· 110=11=11100   11101111==1=   ==1==0111101== 11111111=1=0=1 01111=1110111=
 3 CT800 v1.42            0 39.0 78 1304.00 0   +0 50.0 ===00=000000=0 001=00=00011   ·············· ==1101=101=00= 01=000=011=0   =1==101110=101 111=11111111  
 4 Barbarossa 0.6.0       0 35.0 80 1208.50 0 -160 43.8 0=00000000==   00010000==0=   ==0010=010=11= ·············· 11==0111110001 0=0=11011=0111 ==00110=01=101
 5 Loki 3.5               0 34.5 78 1244.50 0 -144 44.2 00=100=0=00=   ==0==1000010== 10=111=100=1   00==1000001110 ·············· 10=1=0==0000   011=11=101==11
 6 Lozza 3                0 34.0 80 1164.50 0 -192 42.5 =00=0001=0=000 00000000=0=1=0 =0==010001=010 1=1=00100=1000 01=0=1==1111   ·············· 11111===111=  
 7 MinimalChess 0.4.9     0 17.5 80  700.50 0 -720 21.9 0000=00000=000 10000=0001000= 000=00000000   ==11001=10=010 100=00=010==00 00000===000=   ··············
 

amanjpro
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Re: ZaTour - Season 2

Post by amanjpro » Sun Aug 01, 2021 3:49 pm

After 112:

- Zahak is still in the lead with a wide margin
- Nalwald is still in the second place, almost certainly guaranteed qualification to the super league
- Loki fnially recovers, and sits on the third place
- CT800, Lozza and Barbarossa fighting for the fourth place
- MinimalChess still shows a better than expected performance. I think, a bit more depth for MMC (things like LMR and LMP, can easily boost its performance to ~2400 league)

Code: Select all

 N Engine              Rtng  Pts  Gm      SB X   Elo Perf Za                   Na                   Lo                   Ct                   Lz                   Ba                   Mi                  

 1 Zahak rev-a371bb864    0 90.5 112 4282.75 0 +1104 80.8 ···················· 000=1=01==1=1=10==   11=011=1=11=11111=   ===11=111111=1111111 =11=1110=1=111111=   1=11111111==111111   1111=11111=11111111=
 2 Nalwald 1.9            0 78.0 112 3872.75 2  +704 69.6 111=0=10==0=0=01==   ···················· ==1==0111101==0=100= 110=11=11100=11=11   11111111=1=0=11111== 11101111==1=1=111=   01111=1110111==1=1  
 3 Loki 3.5               0 55.0 112 2691.00 0   -32 49.1 00=100=0=00=00000=   ==0==1000010==1=011= ···················· 10=111=100=11011==   10=1=0==0000===101   00==1000001110==1=   011=11=101==11111111
 4 CT800 v1.42            0 49.0 112 2294.50 0  -224 43.8 ===00=000000=0000000 001=00=00011=00=00   01=000=011=00100==   ···················· =1==101110=101001=   ==1101=101=00==001=0 111=11111111=0=11=  
 5 Lozza 3                0 48.0 112 2281.75 0  -256 42.9 =00=0001=0=000000=   00000000=0=1=00000== 01=0=1==1111===010   =0==010001=010110=   ···················· 1=1=00100=100010=001 11111===111=110111  
 6 Barbarossa 0.6.0       0 46.5 112 2289.25 0  -304 41.5 0=00000000==000000   00010000==0=0=000=   11==0111110001==0=   ==0010=010=11==110=1 0=0=11011=011101=110 ···················· ==00110=01=10110=0  
 7 MinimalChess 0.4.9     0 25.0 112 1400.50 0  -992 22.3 0000=00000=00000000= 10000=0001000==0=0   100=00=010==00000000 000=00000000=1=00=   00000===000=001000   ==11001=10=01001=1   ····················
 

amanjpro
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Re: ZaTour - Season 2

Post by amanjpro » Wed Aug 11, 2021 4:31 pm

We are well past midway of the tournament, 180 games played by each engine, and Zahak is in the lead with 20 points ahead of Nalwald... Loki seems to be comfortably sitting in the third place, and CT800 competes with Lozza 3 for the fourth place.

Now, it is obvious the ZuFi will be between Nalwald and Zahak, and what is so cool, their matchup is very close in the league, despite the huge lead by Zahak, which is mostly due to Zahak's better results against other engines.

You can follow the games here (live-broadcast): https://zatour.amanj.me

Code: Select all

 N Engine              Rtng   Pts  Gm       SB X   Elo Perf Za                             Na                             Lo                             Lz                             Ct                             Ba                             Mi                            

 1 Zahak rev-a371bb864    0 142.5 180 10992.50 0 +1680 79.2 ······························ 000=1=01==1=1=10====10=====1== 11=011=1=11=11111=1001=1==1101 =11=1110=1=111111==1111=101110 ===11=111111=111111111111=111= 1=11111111==1111111111=0111111 1111=11111=11111111=111111111=
 2 Nalwald 1.9            0 121.5 180  9770.75 2 +1008 67.5 111=0=10==0=0=01====01=====0== ······························ ==1==0111101==0=100=10==111101 11111111=1=0=11111==10==11=1== 110=11=11100=11=1110101=011=1= 11101111==1=1=111=1=0=11=1=101 01111=1110111==1=11=11111===01
 3 Loki 3.5               0  94.5 180  7346.25 0  +144 52.5 00=100=0=00=00000=0110=0==0010 ==0==1000010==1=011=01==000010 ······························ 10=1=0==0000===101===0==00==1= 10=111=100=11011==1=01=1=01010 00==1000001110==1=1=1111111111 011=11=101==11111111=11=111111
 4 Lozza 3                0  84.5 180  6435.00 0  -176 46.9 =00=0001=0=000000==0000=010001 00000000=0=1=00000==01==00=0== 01=0=1==1111===010===1==11==0= ······························ =0==010001=010110==000001=1110 1=1=00100=100010=0011011101101 11111===111=1101111=1111=11111
 5 CT800 v1.42            0  83.0 180  6229.25 0  -224 46.1 ===00=000000=000000000000=000= 001=00=00011=00=0001010=100=0= 01=000=011=00100==0=10=0=10101 =1==101110=101001==111110=0001 ······························ ==1101=101=00==001=0=1==0=1110 111=11111111=0=11=110111111110
 6 Barbarossa 0.6.0       0  67.0 180  5441.25 0  -736 37.2 0=00000000==0000000000=1000000 00010000==0=0=000=0=1=00=0=010 11==0111110001==0=0=0000000000 0=0=11011=011101=1100100010010 ==0010=010=11==110=1=0==1=0001 ······························ ==00110=01=10110=01111110===00
 7 MinimalChess 0.4.9     0  37.0 180  3299.00 0 -1696 20.6 0000=00000=00000000=000000000= 10000=0001000==0=00=00000===10 100=00=010==00000000=00=000000 00000===000=0010000=0000=00000 000=00000000=1=00=001000000001 ==11001=10=01001=10000001===11 ······························
 

amanjpro
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ZaTour - Season 2: Zahak wins the Super League

Post by amanjpro » Fri Aug 20, 2021 10:11 pm

The Super League just finished, with Zahak comfortably claiming the first spot

Code: Select all

 N Engine              Rtng   Pts  Gm       SB X   Elo Perf Za                                       Na                                       Lo                                       Lz                                       Ct                                       Ba                                       Mi                                      

 1 Zahak rev-a371bb864    0 192.5 240 19729.75 0 +2320 80.2 ········································ 000=1=01==1=1=10====10=====1====10=11=00 11=011=1=11=11111=1001=1==1101=11111=111 =11=1110=1=111111==1111=1011101111111111 ===11=111111=111111111111=111=1001111111 1=11111111==1111111111=01111111=1111111= 1111=11111=11111111=111111111=11=111111=
 2 Nalwald 1.9            0 167.0 240 17752.75 3 +1504 69.6 111=0=10==0=0=01====01=====0====01=00=11 ········································ ==1==0111101==0=100=10==1111011=1=111111 11111111=1=0=11111==10==11=1===101111=1= 110=11=11100=11=1110101=011=1=01=1=11111 11101111==1=1=111=1=0=11=1=101=110101=11 01111=1110111==1=11=11111===011=111=1111
 3 Loki 3.5               0 118.5 240 12040.00 0   -48 49.4 00=100=0=00=00000=0110=0==0010=00000=000 ==0==1000010==1=011=01==0000100=0=000000 ········································ 10=1=0==0000===101===0==00==1=0=0==001== 10=111=100=11011==1=01=1=01010=00011=101 00==1000001110==1=1=1111111111100===10=1 011=11=101==11111111=11=11111111=1=1111=
 4 Lozza 3                0 112.0 240 11131.00 0  -256 46.7 =00=0001=0=000000==0000=0100010000000000 00000000=0=1=00000==01==00=0===010000=0= 01=0=1==1111===010===1==11==0=1=1==110== ········································ =0==010001=010110==000001=11101001=01001 1=1=00100=100010=0011011101101==1101=1== 11111===111=1101111=1111=111111=1011=1=1
 5 CT800 v1.42            0 111.5 240 11163.25 0  -272 46.5 ===00=000000=000000000000=000=0110000000 001=00=00011=00=0001010=100=0=10=0=00000 01=000=011=00100==0=10=0=10101=11100=010 =1==101110=101001==111110=00010110=10110 ········································ ==1101=101=00==001=0=1==0=1110011101=111 111=11111111=0=11=110111111110=1==111==0
 6 Barbarossa 0.6.0       0  90.5 240  9563.00 0  -944 37.7 0=00000000==0000000000=10000000=0000000= 00010000==0=0=000=0=1=00=0=010=001010=00 11==0111110001==0=0=0000000000011===01=0 0=0=11011=011101=1100100010010==0010=0== ==0010=010=11==110=1=0==1=0001100010=000 ········································ ==00110=01=10110=01111110===00111111=011
 7 MinimalChess 0.4.9     0  48.0 240  5762.25 0 -2304 20.0 0000=00000=00000000=000000000=00=000000= 10000=0001000==0=00=00000===100=000=0000 100=00=010==00000000=00=00000000=0=0000= 00000===000=0010000=0000=000000=0100=0=0 000=00000000=1=00=001000000001=0==000==1 ==11001=10=01001=10000001===11000000=100 ········································
 
Together with Nalwald, they both qualified for ZuFi, Zahak plays with a dev version, while Nalwald plays with version 1.12.

Loki, claimed third place, and not far behind came Lozza and CT800
Barbarossa was distant sixth, and MinimalChess came last

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JVMerlino
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Re: Queen sacrifice anyone?

Post by JVMerlino » Sun Aug 22, 2021 5:21 pm

amanjpro wrote:
Tue Jul 20, 2021 3:46 pm
Zahak sacrifices the queen, to win in 30 moves or so...



Please note that Lozza 3, is a dev versino of Lozza 2, and its eval is completely re-written from scratch, and it is estimated to be weaker than Lozza 2
Looks like The King from CM9000 might have found an even more exciting continuation for White after 20.Nxb5!! Bxa6 21.Nxd6+ Kf8....

22.Nxe5! fxe5 23.f4! Bxf1 24.Rxf1 Nd5 25.fxe5+ Ke7 26.exd5 cxd5 27.Bxd5 Rf8 28.Re1

...and now things are unclear, but the eval is +1.5 and the line ultimately trades QRBP for RBNNPPPP, resulting in this position:
[D]rq3r2/p3k1pp/3N4/3BP3/8/2P1B3/P5PP/4R1K1 b - - 0 28

amanjpro
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Re: ZaTour - Season 2

Post by amanjpro » Sun Aug 22, 2021 8:37 pm

I'm away from a computer, when I'm back I'll analyze the king line... Thanks for sharing

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