Benjamin 1.1 - Improved Playing Style and Strength.

Benjamin 1.1 - Improved Playing Style and Strength.

Changes:

1. Improved King Safety or said better : improved King Attack.
2. Nullmove improvement.
3. Better tuning.

http://rebel13.nl/home/benjamin.html

Man I like this engine! Here is a position from a game in progress Benjamin 1.1 vs Cosette 5.1 TC 40/2hrs


Benjamin sees the fantastic 38. d6!

Started Benjamin 1.1 for the GRL.

Games : 1000

Elo pool : 2752

http://rebel13.nl/b/grl.htm

Curious how much elo remains from the +100 against version 1.0

Code:

Match Benjamin 1.1 - ProDeo 3.1 [8-moves.pgn]
Time Control : Time control : 40/120
Games        : 1000

No. Name          Win Draw Loss Unf.  Score Games       %
---------------------------------------------------------
  1 ProDeo 3.1   +253 =497 -250   *0  501.5  1000   50.1%
  2 Benjamin 1.1 +250 =497 -253   *0  498.5  1000   49.9%

I am flabbergasted, by chance I created an aggressive engine without elo loss

Admin wrote:

Code:

Match Benjamin 1.1 - ProDeo 3.1 [8-moves.pgn]
Time Control : Time control : 40/120
Games        : 1000

No. Name          Win Draw Loss Unf.  Score Games       %
---------------------------------------------------------
  1 ProDeo 3.1   +253 =497 -250   *0  501.5  1000   50.1%
  2 Benjamin 1.1 +250 =497 -253   *0  498.5  1000   49.9%

I am flabbergasted, by chance I created an aggressive engine without elo loss

That sounds like a claim worth testing.

Here is a nice takedown of Hiarcs 14 in the Caro Kann opening. Time Control 40 move 4 minutes.

Typical, winning from an 160 elo higher rated engine. Something the equal rated ProDeo 3.1 possibliy can't. I always had this feeling Benjamin would do better against higher rated engines than ProDeo because of its playing style.

I will do some tests if this gut feeling is true.

About my gut feeling - played four 40/120 matches each 1000 games against a pool of much too strong engines.

Code:

GRL gambit positions
ProDeo 3.1    2747 elo
Benjamin 1.1  2782 elo   +35

Code:

Normal positions - 8-moves.pgn
ProDeo 3.1    2768 elo
Benjamin 1.1  2771 elo   +3

Computer chess never is boring.
Computer chess never disappoints.
Computer chess never ceases to amaze me.

I have a LTC 40 moves 2 hours game in progress with Spike 1.4 (Spike Using 6 Threads/CPU). So far game is about even after 31 moves played.

adminx wrote:

I have a LTC 40 moves 2 hours game in progress with Spike 1.4 (Spike Using 6 Threads/CPU). So far game is about even after 31 moves played.

That's a 3000+ engine  

Nice game, even the endgame was fun.

Results of 100 Games with Chess Tiger 2007 TC 5 Minutes 40 Moves

Code:

Result:
------------------------------------------------------------------------------
  #  name              games    wins   draws  losses   score    elo    +    -
  1. Benjamin 1.1        100      53      38       9      72   2750   30   28
  2. Chess Tiger 2007    100       9      38      53      28   2610   28   30

Cross table:
------------------------------------------------------------------------------
  #  name                 score   games         1         2
  1. Benjamin 1.1            72     100         x      72.0
  2. Chess Tiger 2007        28     100      28.0         x

Tech:
------------------------------------------------------------------------------

Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes:
  #  name                nodes/m         NPS  depth/m   time/m    moves     time
  1. Benjamin 1.1         27198K     3359296     17.5      8.1     76.1    616.3
  2. Chess Tiger 2007     22587K     2822449     22.5      8.0     75.4    603.4
     all ---              24319K     3093707     20.0      8.0     75.8    609.8

Results of 100 Games with Gambit Tiger 2007 TC 5 Minutes 40 Moves

Code:

Result:
--------------------------------------------------------------------------------
  #  name                games    wins   draws  losses   score    elo    +    -
  1. Benjamin 1.1          100      71      14      15      78   2750   36   33
  2. Gambit Tiger 2007     100      15      14      71      22   2530   33   36

Cross table:
--------------------------------------------------------------------------------
  #  name                   score   games         1         2
  1. Benjamin 1.1              78     100         x      78.0
  2. Gambit Tiger 2007         22     100      22.0         x

Tech:
--------------------------------------------------------------------------------

Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes:
  #  name                  nodes/m         NPS  depth/m   time/m    moves     time
  1. Benjamin 1.1           13644K     2077022     15.4      6.6     68.3    448.7
  2. Gambit Tiger 2007       7887K     1065384     16.7      7.4     68.0    503.7
     all ---                10518K     1541982     16.1      7.0     68.2    476.2

Used a anchor of 2750 for Benjamin 1.1

That's pretty good, thanks.

I am still waiting for the LTC game with Spike 1.4 to finish (Return Game Benjamin with White). I am sure it will be a draw, but it is a must see. RR+B+P versus Q+R endgame. I think it shows the work you put into King Safety paid off.  They just reached the 5th time control. (160 Moves Played) Spike 1.4 cannot find a way to breach White's castled position.

You are a man of patience

Little over 6 Time Controls Later,   Not bad for an engine that has no Endgame Bases and no SMP.  

Gandalf 7 using 2 Threads

Code:

Result:
--------------------------------------------------------------------------
  #  name          games    wins  draws  losses  score    elo    +    -
  1. Benjamin 1.1    100      45      39      16    64.5  2750  29  28
  2. Gandalf 7.0    100      16      39      45    35.5  2660  28  29

Cross table:
--------------------------------------------------------------------------
  #  name            score  games        1        2
  1. Benjamin 1.1      64.5    100        x      64.5
  2. Gandalf 7.0      35.5    100      35.5        x

Tech:
--------------------------------------------------------------------------

Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes:
  #  name            nodes/m        NPS  depth/m  time/m    moves    time  #fails
  1. Benjamin 1.1    34310K    4171136    17.6      8.2    71.3    586.1       
  2. Gandalf 7.0      31558K    3149649    15.5    10.0    71.3    714.5        1
    all ---          32161K    3609958    16.5      9.1    71.3    650.3        1

https://cegt.forumieren.com/t1587-testing-benjamin-1-1#3072

+84 ?!

Scratching my head.

Admin wrote:

https://cegt.forumieren.com/t1587-testing-benjamin-1-1#3072

+84 ?!

Scratching my head.

They used 1 Thread /CPU, I used 2 Threads /CPU. That may be a factor. I will rerun it later and see if there are big changes.

Still way better than expected.

just fell over the following game:


[Event "Ryzen9 3950x"]
[Site "DESKTOP-D269HUC"]
[Date "2021.10.18"]
[Round "10"]
[White "Benjamin 1.1"]
[Black "Lc0 0.27.0 Nvidia RTX 2070 [j94-130]"]
[Result "0-1"]
[BlackElo "2200"]
[ECO "A00"]
[Opening "Creepy Crawly (Basman) Eröffnung"]
[Time "17"]
[Variation "2.c3"]
[WhiteElo "2200"]
[TimeControl "40/300:40/300:40/300"]
[Termination "normal"]
[PlyCount "63"]
[WhiteType "program"]
[BlackType "program"]

1. h3 d5 2. c3 e5 3. d4 Nd7 4. Be3 e4 5. Bf4 Ndf6 6. e3 Bd6 7. Ne2 Ne7 {(7.
... Se7 8.Lxd6 Dxd6 9.c4 c6 10.cxd5 cxd5 11.Da4+ Kf8 12.Da3 Dd8 13.Sbc3 g6
14.Sf4 g5 15.Sfe2 Kg7 16.h4 gxh4 17.Txh4 Sg6 18.Th1 h5 19.Sg1 a6 20.Db3 b5)
+0.19/11 16} 8. Nd2 {(8.Sd2 0-0 9.c4 dxc4 10.Sxc4 Lxf4 11.Sxf4 Sg6 12.Sxg6
fxg6 13.Se5 Le6 14.Le2 c6 15.0-0 Sd5 16.Lg4 Dd6) -0.13/16 7} h5 {(8. ... h5
9.c4 c6 10.Lxd6 Dxd6 11.Sc3 Kf8 12.Le2 Th6 13.Db3 h4 14.0-0 Tg6 15.Kh1 Lxh3
16.gxh3 Dd7 17.Kh2 Dd6+) +0.27/10 10} 9. c4 {(9.c4 c6 10.Lg5 Le6 11.Tc1 h4
12.cxd5 Sexd5 13.Sc3 Sxc3 14.bxc3 Lf5 15.Dc2 De7 16.Le2 0-0-0 17.0-0 Lc7
18.c4) +0.37/16 12} c6 {(9. ... c6 10.Lxd6 Dxd6 11.Sc3 Kf8 12.Le2 Th6
13.Db3 Dd8 14.g3 Tb8 15.0-0-0 b5 16.cxb5 cxb5 17.Kb1 Ld7 18.Tc1 a5 19.Lxb5
a4) +0.26/12 0} 10. Rc1 {(10.Tc1 Lxf4 11.Sxf4 Db6 12.b3 Lf5 13.Le2 h4
14.0-0 Tc8 15.Te1 Sg6 16.Sxg6 fxg6 17.cxd5 cxd5 18.Txc8+) +0.38/16 5} Kf8
{(10. ... Kf8 11.g3 Lxf4 12.Sxf4 g5 13.Sg2 h4 14.gxh4 gxh4 15.Dc2 Lf5
16.cxd5 Sexd5 17.Dc5+ De7 18.a3 Dxc5 19.Txc5 Ke7 20.Sf4 Tag8 21.Se2 Tg5
22.Tg1) +0.27/12 12} 11. Bg5 {(11.Lg5 Sh7 12.Lh4 Le6 13.cxd5 cxd5 14.Sf4
Lxf4 15.exf4 Tc8 16.Sb3 Txc1 17.Dxc1 Sf6 18.Lxf6 gxf6 19.Dc5 Kg7 20.Dxa7)
+0.51/16 11} Nh7 {(11. ... Sh7 12.Lf4 h4 13.Lxd6 Dxd6 14.Db3 Sf6 15.Sc3 Dd8
16.Le2 Th6 17.0-0 Tg6 18.Kh1 Tb8 19.Tg1 Kg8 20.Dd1 Le6 21.Sf1 dxc4 22.Sd2
Dd7 23.Scxe4 Sxe4 24.Sxe4) +0.26/10 0} 12. Bxe7+ {(12.Lxe7+ Dxe7 13.cxd5
cxd5 14.Sc3 Sf6 15.Le2 Lf5 16.Sb5 Th6 17.0-0 Tc8 18.Sxa7 Txc1 19.Dxc1)
+0.46/17 7} Bxe7 {(12. ... Lxe7 13.Sc3 g6 14.Db3 Sf6 15.cxd5 cxd5 16.f3
exf3 17.Sxf3 Ld6 18.Ld3 Lg3+ 19.Kd2 Kg7 20.Thf1 h4 21.a3 Tb8 22.Se2 Ld6
23.Se5 Te8 24.Da4 a6 25.Tf2 b5 26.Dc2) +0.49/16 12} 13. cxd5 {(13.cxd5 cxd5
14.Sf4 Sf6 15.Le2 g6 16.Sb1 Lb4+ 17.Sc3 Kg7 18.0-0 Lf5 19.Sb5 La5 20.Da4
Tc8 21.Txc8 Lxc8) +0.40/16 12} cxd5 {(13. ... cxd5 14.Sc3 g6 15.Db3 Sf6
16.f3 exf3 17.Sxf3 Ld6 18.Ld3 Lg3+ 19.Kd2 Kg7 20.Thf1 h4 21.a3 Tb8 22.Se2
Ld6 23.Se5 Te8 24.Dc2 De7 25.Lxg6 Lxe5 26.dxe5 Dxe5 27.Ld3 Dxe3+ 28.Kd1 Ld7
29.Tf3 De5 30.Dc3 La4+ 31.b3 d4 32.Sxd4 Tbc8 33.Sf5+) +0.46/24 1} 14. Nf4
{(14.Sf4 Sf6 15.Le2 g6 16.Sb1 Kg7 17.Sc3 Lb4 18.0-0 Lf5 19.a3 Lxc3 20.Txc3
Tc8 21.Txc8 Dxc8 22.Lb5 a6 23.La4) +0.24/16 4} Nf6 {(14. ... Sf6 15.Le2 g6
16.Sb1 Ld6 17.Sc3 Kg7 18.0-0 Lf5 19.Db3 Lxf4 20.exf4 Dd6 21.Sb5 Dxf4 22.De3
Dxe3 23.fxe3 Thd8 24.Tc5 h4 25.Tfc1 Ld7 26.Sc7 Tac8 27.b4 Lc6 28.Sb5 Ta8
29.Sc7) +0.63/13 16} 15. Be2 {(15.Le2 Db6 16.0-0 Dxb2 17.Tc2 Db6 18.Sxh5
Sxh5 19.Lxh5) +0.07/18 0} g6 {(15. ... g6 16.Sb1 Ld6 17.Sc3 Kg7 18.0-0 Lf5
19.Db3 Lxf4 20.exf4 Dd6 21.Sb5 Dxf4 22.De3 Dxe3 23.fxe3 Thd8 24.Tc5 h4
25.Tfc1 Se8 26.Sc7 Sxc7 27.Txc7 Tac8 28.Lg4 Txc7 29.Txc7 Lxg4 30.hxg4 Kf6
31.Kh2 Td6 32.Txb7 Ta6 33.a3) +0.64/16 4} 16. O-O {(16.0-0 Ld7 17.a3 Kg7
18.Sb1 Lc6 19.Sc3 Tc8 20.Sxe4 dxe4 21.Sxg6 fxg6 22.Txc6) +0.10/16 8} Kg7
{(16. ... Kg7 17.Sb1 Ld6 18.Sc3 Lf5 19.Db3 g5 20.Sfxd5 Le6 21.Lc4 Tc8
22.Dxb7 Txc4 23.Sxf6 Txc3 24.bxc3 Dxf6 25.c4 g4 26.c5 Lb8 27.d5 De5 28.d6
gxh3 29.f4 exf3 30.Dxf3 Tc8 31.Tfd1 Txc5 32.Txc5 Dxc5 33.Dg3+ Kf8 34.gxh3
Dc2 35.Td4 Db1+ 36.Kf2 Dxa2+ 37.Kf3 Ld5+ 38.e4 Da3+ 39.Kg2 Db2+ 40.Df2)
+0.76/18 14} 17. Nb1 {(17.Sb1 Ld7 18.Sc3 Lc6 19.Lb5 Tc8 20.Lxc6 Txc6 21.Db3
Tb6 22.Dc2 Dd6 23.f3 exf3 24.gxf3 Tc8) 0.00/16 8} Bd6 {(17. ... Ld6 18.Sc3
Lf5 19.Sfxd5 Sxd5 20.Sxd5 Lxh3 21.gxh3 Dg5+ 22.Kh1 Dxd5 23.f4 Tac8 24.a4
Df5 25.Kg2 Kh6 26.h4 De6 27.Dd2 Le7 28.Txc8 Txc8 29.Tc1 Dd7 30.b3 Lxh4
31.Txc8 Dxc8 32.d5 Dh8 33.d6 f5 34.d7 Ld8 35.Lc4 Df6 36.Dd5 Db2+ 37.Kf1 h4)
+0.81/18 2} 18. Nc3 {(18.Sc3 Lxf4 19.exf4 Lf5 20.Db3 Dg8) +0.09/18 10} Bf5
{(18. ... Lf5 19.h4 Tc8 20.g3 Lxf4 21.exf4 Te8 22.Dd2 Da5 23.Tfe1 Te6 24.a3
Tec6 25.Ta1 a6 26.Tac1 Se8 27.Tcd1 Sd6 28.Sxe4) +0.85/15 0} 19. Re1
{(19.Te1 Lxf4 20.exf4 Db6 21.b3 Tac8 22.Dd2 Thd8 23.Sa4 Dd6 24.Sc5 Tc7
25.Ted1 Tdc8) +0.12/17 8} Rc8 {(19. ... Tc8 20.a3 a6 21.h4 Tc6 22.g3 Lxf4
23.exf4 Dc7 24.Db3 Tc8 25.Sa2 Dd8 26.Txc6 Txc6 27.Tc1 Tb6 28.Dc3 Dd7 29.b4
Lg4 30.Lf1 Te6 31.De3 Te8 32.Sc3 Lf3 33.Dd2) +0.93/13 27} 20. a3 {(20.a3
Lxf4 21.exf4 Db6 22.Dd2 The8 23.Sa4 Dd6 24.De3 h4 25.b4 Txc1 26.Txc1 Tc8
27.Tc5 Txc5) +0.16/17 8} a6 {(20. ... a6 21.h4 Tc6 22.Dd2 Lb8 23.g3 Dd7
24.Sa2 Tb6 25.Sc3 Te8 26.Sd1 Lh3 27.Tc5 Td6 28.Kh2 Lg4 29.Lxg4 Dxg4 30.De2
Df5 31.Kg2 Tdd8 32.Tc3 Sg4) +0.94/15 0} 21. Qb3 {(21.Db3 Lxf4 22.exf4 Tc7
23.Sa4 Dd6 24.De3 Thc8 25.Sc5 a5 26.Dd2 h4 27.b4 axb4 28.axb4 b6 29.Da2
bxc5 30.bxc5) 0.00/19 13} g5 {(21. ... g5 22.Sxh5+ Sxh5 23.Dxd5 Lg6 24.Dxb7
Sf6 25.Dxa6 Ta8 26.Dc4 g4 27.Sb5 gxh3 28.Dc6 Le7 29.Dc7 Tb8 30.Dxd8 Tbxd8
31.Tc7 Sd5 32.Tb7 Lf5 33.g3 Tb8 34.Txb8 Txb8 35.Tc1 Ld7 36.a4 Lb4 37.Kh2
Sf6 38.b3 Sg4+ 39.Lxg4 Lxg4) +2.68/19 23} 22. Nfxd5 {(22.Sfxd5 Le6 23.Dxb7
Sxd5 24.Sxe4 Sxe3 25.fxe3 Txc1 26.Txc1 Ld5 27.Dxa6 Lxe4 28.Tf1 Dd7 29.Ld3
Ta8 30.Db5 Dxb5 31.Lxb5 f5 32.Tc1 Ld5) -0.37/18 12} Be6 {(22. ... Le6
23.Dxb7 Tb8 24.Dc6 Sxd5 25.Sxe4 Tb6 26.Dc2 Lb8 27.Sc5 Lc8 28.e4 Sf4 29.Dc3
g4 30.d5+ Df6 31.Dxf6+ Txf6 32.h4 Le5 33.b4 g3 34.fxg3 Sxe2+ 35.Txe2 Lg4
36.Td2 Lxg3 37.Td3 Le5 38.Tc2 Tc8 39.Tcd2) +3.09/20 0} 23. Qxb7 {(23.Dxb7
Sxd5 24.Sxe4 Sxe3 25.Txc8 Lxc8 26.Dc6 Th6 27.Dc1 Sf5 28.Sxg5 Le7 29.Sf3)
-0.06/18 5} Rb8 {(23. ... Tb8 24.Dc6 Sxd5 25.Sxe4 Tb6 26.Dc2 Lb8 27.Sc5 Lc8
28.e4 Sf4 29.Dc3 g4 30.d5+ Df6 31.Dxf6+ Txf6 32.h4 Le5 33.b4 g3 34.fxg3
Sxe2+ 35.Txe2 Lg4 36.Td2 Lxg3 37.Td3 Le5 38.Tc2 Tc8 39.Tcd2 Td6) +3.31/18
0} 24. Qxa6 {(24.Dxa6 Lxd5 25.Sb5 Le7 26.Da7 Se8 27.Da4 Dd7 28.Sc3 Lc6
29.Dc2 Sf6) -0.18/17 8} Bxd5 {(24. ... Lxd5 25.Sxd5 Sxd5 26.b4 g4 27.Da5
Dg5 28.Lc4 gxh3 29.g3 Df6 30.Dxd5 h2+ 31.Kh1 Df3+ 32.Kxh2 Dxf2+ 33.Kh1 h4
34.Dxf7+ Dxf7 35.Lxf7 hxg3+ 36.Kg1 Kxf7 37.Tf1+ Ke7 38.Tf5 Th2 39.Tcf1 Tbh8
40.Tf7+ Ke8) +4.02/15 15} 25. b4 {(25.b4 Ta8 26.Db5 Txa3 27.Lc4 Lxc4
28.Dxc4 g4) -0.73/18 0} g4 {(25. ... g4 26.Sxd5 Sxd5 27.Da5 Dg5 28.Lc4 gxh3
29.g3 Df6 30.Dxd5 h2+ 31.Kh1 Df3+ 32.Kxh2 Dxf2+ 33.Kh1 h4 34.Dxf7+ Dxf7
35.Lxf7 hxg3+ 36.Kg1 Kxf7 37.Tf1+ Ke7 38.Tf5 Th2 39.Tcf1 Tbh8 40.Tf7+ Ke8
41.T7f4) +4.20/14 1} 26. Nb5 {(26.Sb5 Tb6 27.Da5 gxh3 28.gxh3 Kh7 29.Kh1
Lb8 30.Tg1 Dd7 31.Lf1 Tc6 32.Txc6 Dxc6 33.a4 Dc2 34.Tg2 Dd1 35.Kg1)
-0.75/17 32} Rb6 {(26. ... Tb6 27.Da5 gxh3 28.Sxd6 Dxd6 29.Dc5 De6 30.Dc7
Td6 31.gxh3 Sh7 32.h4 Kh6 33.Ted1 Tg8+ 34.Kf1 Sf6 35.Ke1 Lb3 36.Lc4 Lxc4
37.Dxc4 Sd5 38.Kd2 Tg2 39.Tf1 Df6 40.De2) +5.56/15 9} 27. Qa5 {(27.Da5 gxh3
28.gxh3 Th6 29.Sxd6 Dxd6 30.Dc5 Tg6+ 31.Kh1 De6 32.Dc7 Dxh3+ 33.Dh2 Df5
34.Tg1) -1.36/18 0} gxh3 {(27. ... gxh3 28.Sxd6 Dxd6 29.Dc5 De6 30.Dc7 Td6
31.gxh3 Sh7 32.h4 Kh6 33.Ted1 Tg8+ 34.Kf1 Sf6 35.Ke1 Lb3 36.Lc4 Lxc4
37.Dxc4 Sd5 38.Kd2 Tg2 39.Tf1 Df6 40.De2) +5.86/15 0} 28. gxh3 {(28.gxh3
Th6 29.Sxd6 Dxd6 30.Da7 Tg6+ 31.Kh1 De6 32.Dc7 Dxh3+ 33.Dh2 Df5 34.Tg1)
-1.26/14 2} Ng4 {(28. ... Sg4 29.Sxd6 Dxd6 30.Lxg4 hxg4 31.Dc5 De6 32.Dc7
Td6 33.Kf1 Df6 34.Ke2 Txh3 35.Kd2 Th2 36.Te2 Txf2 37.Tce1 g3 38.b5 g2
39.Dc5) +8.31/12 14} 29. Bxg4 {(29.Lxg4 hxg4 30.Kf1 gxh3 31.Ke2 h2 32.Th1
Df6 33.Tcg1+ Lg3 34.Txg3+ Kf8 35.a4) -3.01/15 12} hxg4 {(29. ... hxg4
30.Sxd6 Dxd6 31.Dc5 De6 32.Dc7 Td6 33.Kf1 Df6 34.Ke2 Txh3 35.Kd2 Th2 36.Te2
Txf2 37.Tce1 g3 38.b5 g2 39.Dc5) +10.33/12 0} 30. Kf1 {(30.Kf1 gxh3 31.Ke2
h2 32.Kd2 Lb8 33.Sc3 Lb7 34.Kc2 Df6 35.Kb1 Tc6 36.Th1 Dxf2 37.Dg5+ Tg6
38.De7) -3.43/16 13} g3 {(30. ... g3 31.Sxd6 Dxd6 32.Ke2 gxf2 33.Tf1 Txh3
34.Txf2 Dg3 35.Tg1 Dxg1 36.Dxd5 Tf6 37.Dxe4 Txf2+ 38.Kd3 Df1+ 39.Kc3 Dc1+
40.Kb3 Txe3+) +13.57/10 7} 31. Nxd6 {(31.Sxd6 Dxd6 32.Ke2 Txh3 33.Dc5 gxf2
34.Tg1+ Kh6 35.Dxd6+ Txd6 36.Kd2 Th2) -5.62/15 7} Qxd6 {(31. ... Dxd6
32.Tc5 Df6 33.f4 exf3 34.Txd5 Kg6 35.Tg5+ Dxg5 36.Dxb6+ Kg7 37.Dc5 Df6
38.De5 Txh3 39.Dxf6+ Kxf6 40.Kg1 f2+ 41.Kg2 fxe1D 42.Kxh3 Kg5 43.d5 Dg1)
+13.18/10 0} 32. Ke2 {(32.Ke2 Txh3 33.Kd2 gxf2 34.Te2 Tc6 35.Tf1 Lb3
36.Dg5+ Dg6 37.Dxg6+ fxg6 38.Tfxf2 Tc2+ 39.Ke1 Th1+ 40.Tf1 Tc1+ 41.Kf2
Tcxf1+ 42.Kg3 Lc4 43.Td2) -6.39/16 4 Weiss gibt auf} 0-1



isnt it amazing how early black saw the position dead for white ?

2,68 in move 29


[pgn]
[Event "Ryzen9 3950x"]
[Site "DESKTOP-D269HUC"]
[Date "2021.10.18"]
[Round "10"]
[White "Benjamin 1.1"]
[Black "Lc0 0.27.0 Nvidia RTX 2070 [j94-130]"]
[WhiteElo "2200"]
[BlackElo "2200"]
[ECO "A00"]
[Result "0-1"]

1. h3 d5 2. c3 e5 3. d4 Nd7 4. Be3 e4 5. Bf4 Ndf6 6. e3 Bd6
7. Ne2 Ne7 8. Nd2 h5 9. c4 c6 10. Rc1 Kf8 11. Bg5 Nh7
12. Bxe7+ Bxe7 13. cxd5 cxd5 14. Nf4 Nf6 15. Be2 g6 16. O-O
Kg7 17. Nb1 Bd6 18. Nc3 Bf5 19. Re1 Rc8 20. a3 a6 21. Qb3
g5 22. Nfxd5 Be6 23. Qxb7 Rb8 24. Qxa6 Bxd5 25. b4 g4
26. Nb5 Rb6 27. Qa5 gxh3 28. gxh3 Ng4 29. Bxg4 hxg4 30. Kf1
g3 31. Nxd6 Qxd6 32. Ke2 0-1
[/pgn]