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Up Topic The Rybka Lounge / Computer Chess / CCC: Double Bongcloud, Rapid (10|2)
- By MrKris (***) Date 2021-06-07 21:28
Double Bongcloud, Rapid (10|2)
https://www.chess.com/computer-chess-championship#event=double-bongcloud-rapid

All games begin 1.e4 e5 2.Ke2 Ke7:
rnbq1bnr/ppppkppp/8/4p3/4P3/8/PPPPKPPP/RNBQ1BNR w - - 2 3


So far all the games between the top 3 have been draws except the one below.
(Does that mean the above is about as drawish as normal openings?)
 
Lc 40.5/59
Sf 38.5/60
Dr 35.5/60
St 29.5/62
Ru 27.0/62
Et 25.0/59
Ko 24.5/54
Xi 18.5/62
 

[Event "Double Bongcloud, Rapid (10|2)"]
[Site "chess.com"]
[Date "2021.06.04"]
[Round "1"]
[White "Dragon"]
[Black "Lc0"]
[Result "0-1"]
[ECO "C20"]
[GameDuration "00:27:12"]
[GameEndTime "2021-06-04T05:21:52.554 PDT"]
[GameStartTime "2021-06-04T04:54:40.254 PDT"]
[Opening "King's pawn game"]
[PlyCount "214"]
[TimeControl "600+2"]

1. e4 e5 2. Ke2 Ke7 3. d4 exd4 4. Qxd4 Nc6 5. Qd3 Nf6 6. Nc3 Ke8 7. a3 Ne5 8.
Qb5 Ng6 9. Ke1 c6 10. Qe2 Qc7 11. Be3 Be7 12. Qd2 Kf8 13. Bd3 Ng4 14. Bd4 h5 15.
Nge2 d5 16. exd5 c5 17. Nb5 Qb6 18. Bc3 Bd7 19. a4 Re8 20. Kf1 c4 21. Bd4 cxd3
22. Bxb6 dxe2+ 23. Kg1 axb6 24. h3 Nf6 25. d6 Bd8 26. Re1 Ne4 27. Qd4 Ng5 28.
Nc3 Ne5 29. Qb4 Nc6 30. Qf4 Ne6 31. Qd2 Bg5 32. Qxe2 Ned4 33. Qd1 Rxe1+ 34. Qxe1
Rh6 35. h4 Bd8 36. Nb5 Nxb5 37. axb5 Nd4 38. Qd1 Rxd6 39. Qxh5 Kg8 40. c3 Nxb5
41. Kh2 Rh6 42. Qd1 Bc7+ 43. g3 Rxh4+ 44. Kg1 Rxh1+ 45. Kxh1 Bc6+
[FEN "6k1/1pb2pp1/1pb5/1n6/8/2P3P1/1P3P2/3Q3K w - - 1 46"]

46. Kg1 {CCC -0.52} Nd6 {CCC -1.11} 47. Qe2 b5 48. Qe7 Ne8 49. b4 Bd6 50. Qd8 Kf8 51. Qh4 Be5 52. Qg5 f6 53. Qe3 g5
54. Qd2 Kf7 55. f4 gxf4 56. gxf4 Bc7 57. Qa2+ Kg6 58. Qg8+ Kf5 59. c4 Kxf4 60.
cxb5 Bxb5 61. Qh7 Bc6
[FEN "4n3/1pb4Q/2b2p2/8/1P3k2/8/8/6K1 w - - 2 62"]

62. Qe7 {CCC -0.48} Bd6 {CCC -2.43} 63. Qe2 f5 64. b5 Be4 65. Qh2+ Ke3 66. Qb2 Kd3
67. Qb3+ Kd2 68. Qb2+ Ke3 69. Qh8 Nc7 70. Qc3+ Bd3 71. Qb2 Nxb5 72. Qf2+ Ke4 73.
Qb6 Kd5 74. Qxb7+ Kc4 75. Qg2 Nc3 76. Qg8+ Kb4 77. Qd8 Bc5+ 78. Kh2 Be4 79. Qb8+
Kc4 80. Qc7 Ne2 81. Kh3 Nc1 82. Qd7 Nd3 83. Qa4+ Kc3 84. Kh2 Kd2 85. Qa2+ Ke1
86. Qb3 Be3 87. Qb1+ Nc1 88. Qa1 Kf2 89. Qg7 Nb3 90. Qg2+ Ke1 91. Qh3 f4 92.
Qh4+ Kd2 93. Kh3 Nd4 94. Qd8 f3 95. Qa5+ Ke2 96. Qh5 Kd3 97. Kg3 Ne2+ 98. Kh4
Nc3 99. Kg4 f2 100. Qh3 Ke2 101. Qh2 Nd5 102. Kh4 Bf4 103. Qh3 f1=Q 104. Qg4+
Kd2 105. Qe6 Qf2+ 106. Kh5 Qh2+ 107. Qh3 Qxh3# {0-1}
- - By MrKris (***) Date 2021-06-08 17:19
Double Bongcloud, Rapid (10|2)
https://www.chess.com/computer-chess-championship#event=double-bongcloud-rapid

All games begin 1.e4 e5 2.Ke2 Ke7.

So far all the games between the top 3 have been draws except the one last post.
 
Lc 47.5/71
Sf 46.5/72
Dr 43.5/74
Sv 37.5/76
Ru 34.5/76
Et 32.0/73
Ko 39.5/66
Xi 20.0/74
 
The top 3 are undefeated except for this game.
135...Ra8?? allowed the very simple tactic 136.Rd1 trapping black's Q.
[Event "Double Bongcloud, Rapid (10|2)"]
[Site "chess.com"]
[Date "2021.06.06"]
[Round ""]
[White "Komodo"]
[Black "Lc0"]
[Result "1-0"]
[BlackElo "2400"]
[ECO "C20"]
[Opening "Open Game"]
[Variation "1.e4 e5"]
[WhiteElo "2400"]
[TimeControl "600+2"]
[Termination "normal"]
[FEN "5rk1/2p2r2/3b1p2/p2P1Pp1/1pB4p/1P2RQ1P/1q4P1/4R2K w - - 10 135"]

135. Qf1 {CCC =, both engines had 0.00 for the last many moves} Ra8 {??} (135. .. Kg7 {Harmaon 13.1b} 136. R3e2 (136. Rd1 Re7)) 136. Rd1
a4 (136. .. Re7 {?} 137. Rxe7 Bxe7 {?} 138. d6+ Kg7 139. Qf3 Rh8 140. Qd5
{Mate in 6}) 137. Re2 Qc3 138. Rd3 Qxd3 139. Bxd3 a3 140. Qa1 Kg7 141. Qa2
Ra5 142. Bc4 Re7 143. Re6 Rxe6 144. fxe6 f5 145. g3 hxg3 146. Kg2 Kf6 147.
Qa1+ Be5 148. Qd1 g4 149. hxg4 a2 150. Qd3 a1=Q 151. Qxf5+ Kg7 152. Qf7+
Kh6 153. Qf8+ Bg7 154. Qf4+ Kh7 155. Qf5+ Kh8 156. Qh5+ Bh6 157. Qxh6+ Kg8
158. Qg5+ Qg7 159. Qd8+ Kh7 160. Bd3+ Qg6 161. Qxc7+ Kh6 162. Bxg6 Kg5 163.
Qxa5 Kf4 164. Qc7+ Kg5 165. Bf5 Kf6 166. Kxg3 Kg5 167. Qg7# {1-0}
Parent - - By sarona (*) Date 2021-06-11 03:08 Upvotes 1
"The top 3 are undefeated except for this game.
135...Ra8?? allowed the very simple tactic 136.Rd1 trapping black's Q."


I think this is another example of what you alluded to here http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=33916

"Lc0 loses like it generally does: a sudden ?? for no reason ('zero' NN unrepairable flaw)." where the game was equal prior to 25...Rf8"

I see that Lc0 (0.27.0-rc2 with net 69146) won the tournament with 64.5. Next was Stockfish with 63.5 followed by K_Dragon with 58.5.

I have noticed that there is a Lc0 0.28.0 -dev test version that is supposed to have faster memory management and smooth time management.
https://ci.appveyor.com/api/buildjobs/6hebwks5sr8h7hem/artifacts/lc0-test-windows-gpu-nvidia-cuda-nodll.zip

https://github.com/borg323/lc0/commit/f7568a025db6b5c2cf8add342a10ca3c422729ad
Parent - By MrKris (***) Date 2021-06-13 03:34

> I see that Lc0 (0.27.0-rc2 with net 69146) won the tournament with 64.5. Next was Stockfish with 63.5 followed by K_Dragon with 58.5.


My guess - no data, I am not a programmer -  is that for some low move length books Stockfish plays too quietly and that a small part of its strength is to wait safely until its opponent makes an err.

Its probably too early to mention but Stockfish is off to a slow start at:
https://www.chess.com/computer-chess-championship#event=the-hillbilly-attack

Lc 15.0/24
Dr 14.5/25
Sv 13.0/24
Sf 12.5/24  23 draws, 1 win (vs Xi)
Ko 12.0/24
Xi  9.0/24
Et  9.0/24
 
Parent - - By MrKris (***) Date 2021-06-13 13:14

> I see that Lc0 (0.27.0-rc2 with net 69146) won the tournament with 64.5. Next was Stockfish with 63.5 followed by K_Dragon with 58.5.


My guess - no data, I am not a programmer -  is that for some low move length books Stockfish plays too quietly and that a small part of its strength is to wait safely until its opponent makes an err.

Lc0 is leading, Stockfish is off to a horrible start at:
https://www.chess.com/computer-chess-championship#event=the-hillbilly-attack

Lc 18.5/30
Dr 17.5/30
Sv 16.0/30
Sf 15.5/30  29 draws, 1 win (vs Xi)
Ko 15.5/30
Ru 14.0/30
Xi  11.5/30
Et  11.5/30
 
Parent - - By sarona (*) Date 2021-06-13 19:16
OMG!

Stockfish has ONE win in 34 games (playing the black side of a Caro-Kann against -at the time of this writing - last place, Xiphos).  It has ZERO wins, with white, against any of the opponents!
[Event "The Hillbilly Attack (10|2)"]
[Site "Chess.com"]
[Date "2021.06.11"]
[Round "21"]
[White "Xiphos"]
[Black "Stockfish"]
[Result "0-1"]
[ECO "B10"]
[Opening "Caro-Kann"]
[Variation "1.e4 c6"]
[TimeControl "600+2"]
[Termination "normal"]
[PlyCount "162"]
[WhiteType "human"]
[BlackType "human"]

1. e4 c6 2. Bc4 d5 {+0.48/41} 3. exd5 {-0.26/20} cxd5 {+0.49/39} 4. Bb3
{-0.28/20} Bf5 {+0.49/43} 5. d4 {-0.32/21} e6 {+0.39/39} 6. Bf4 {-0.24/23}
Nc6 {+0.36/38} 7. Nf3 {-0.30/23} Bg4 {+0.52/41} 8. Ba4 {-0.47/24} Qf6
{+0.54/38} 9. Be5 {-0.49/26} Bxf3 {+0.53/41} 10. Qd3 {-0.53/25} Qg5
{+0.40/41} 11. Qxf3 {-0.47/27} Qc1+ {+0.46/40} 12. Qd1 {-0.44/23} Qxd1+
{+0.32/40} 13. Kxd1 {-0.45/25} f6 {+0.39/41} 14. Bf4 {-0.33/21} Kf7
{+0.30/43} 15. c3 {-0.27/23} g5 {+0.54/37} 16. Bc1 {-0.32/23} Bd6
{+0.53/40} 17. h4 {-0.32/21} g4 {+0.64/35} 18. h5 {-0.40/24} f5 {+0.89/37}
19. Nd2 {-0.30/23} Nf6 {+0.89/41} 20. Bb5 {-0.44/23} a5 {+0.71/43} 21. a4
{-0.45/24} f4 {+0.67/41} 22. Bd3 {-0.44/27} Rhg8 {+0.64/42} 23. Nb3
{-0.45/26} e5 {+0.67/45} 24. dxe5 {-0.47/26} Nxe5 {+0.32/51} 25. Bb5
{-0.44/28} f3 {+0.31/51} 26. g3 {-0.65/28} Ne4 {+1.36/36} 27. Rf1
{-0.78/29} Nc6 {+1.01/43} 28. Kc2 {-0.77/26} Rge8 {+1.48/38} 29. Bh6
{-1.01/25} Bb8 {+1.37/42} 30. Nd2 {-0.73/25} Nf6 {+2.01/35} 31. Ra3
{-1.29/27} Ba7 {+2.68/36} 32. Rb3 {-1.41/28} Bc5 {+3.02/37} 33. Bg5
{-1.62/31} Re7 {+3.27/34} 34. Kd1 {-2.03/24} Rae8 {+3.94/35} 35. h6
{-2.13/27} Re2 {+4.40/37} 36. Be3 {-2.53/26} Bxe3 {+4.45/39} 37. Bxe2
{-2.71/26} fxe2+ {+4.69/38} 38. Kxe2 {-2.80/27} Bc5+ {+4.69/39} 39. Kd1
{-2.82/26} b6 {+4.78/38} 40. f3 {-2.84/28} Kg6 {+5.02/34} 41. Rb5
{-2.93/28} Na7 {+5.12/36} 42. Rb3 {-3.05/26} Nc8 {+5.37/41} 43. Re1
{-2.76/24} Rxe1+ {+5.55/39} 44. Kxe1 {-2.96/24} Nd6 {+5.78/42} 45. fxg4
{-3.05/22} Nxg4 {+5.76/38} 46. Nf3 {-3.60/24} Kf6 {+5.86/40} 47. Kd1
{-3.78/27} Nxh6 {+6.28/38} 48. Ne1 {-3.87/23} Nhf5 {+6.35/39} 49. Nd3
{-3.49/22} Bg1 {+6.60/37} 50. Ke2 {-3.86/24} Nxg3+ {+6.61/38} 51. Kf3
{-4.16/22} Nge4 {+6.65/40} 52. Ra3 {-4.33/23} Nc4 {+6.90/39} 53. Ra1
{-4.71/25} Be3 {+7.06/37} 54. Ke2 {-4.49/23} Bg5 {+7.47/35} 55. Rf1+
{-5.01/21} Ke7 {+7.66/33} 56. Re1 {-5.16/22} Ke6 {+7.96/32} 57. Kf3
{-5.37/24} Kf5 {+8.25/36} 58. Rh1 {-5.54/24} h6 {+8.25/33} 59. Ra1
{-5.98/24} h5 {+8.86/34} 60. b3 {-6.30/24} Ne5+ {+10.18/33} 61. Nxe5
{-8.99/22} Kxe5 {+11.01/35} 62. Rh1 {-8.96/21} h4 {+12.00/32} 63. Rh3
{-14.76/22} Kf5 {+19.20/30} 64. Kg2 {-15.75/20} Kg4 {+57.25/35} 65. Rf3
{-33.29/21} Bf4 {+126.32/41} 66. b4 {-24.00/15} Ng3 {+M33/87} 67. Rd3
{-28.23/14} h3+ {+M29/93} 68. Kg1 {-M30/14} Ne4 {+M27/100} 69. Rd1
{-M26/16} Nxc3 {+M25/110} 70. Rf1 {-M24/17} d4 {+M23/79} 71. bxa5 {-M22/19}
bxa5 {+M21/87} 72. Ra1 {-M20/24} d3 {+M19/116} 73. Rf1 {-M18/28} Be3+
{+M17/146} 74. Kh2 {-M16/33} d2 {+M15/200} 75. Ra1 {-M14/43} d1=Q
{+M13/226} 76. Rxd1 {-M12/49} Nxd1 {+M11/245} 77. Kh1 {-M10/99} Nf2+
{+M9/245} 78. Kh2 {-M8/99} Bf4+ {+M7/245} 79. Kg1 {-M6/99} Kf3 {+M5/245}
80. Kf1 {-M4/99} h2 {+M3/245} 81. Ke1 {-M2/99} h1=Q# {+M1/245} 0-1



Stockfish is +1 =23 -0 against Komodo, Stoofvlees, Rubi, Ethereal and Xiphos.

Definitely going to look at those pgns.
Parent - - By MrKris (***) Date 2021-06-13 22:07 Upvotes 1
Thanks!

I made a main thread for the Hillbilly: http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=33931

> Definitely going to look at those pgns.


Here is Scid vs PC's Opening Report from a few games ago (without the footnotes with the players and a few more moves) :


5. Theory Table

-------------------------------------------------------------------------------
  1.e4 c6 2.Bc4: white +2 =107 -20 (55.5/129: 43%)
-------------------------------------------------------------------------------
     2        3        4        5        6        7        8        9    
-------------------------------------------------------------------------------
1  Bc4      ed5      Bb5      d4[1]    c4[3]    Nf3      OO       Bc6[4]   15:
    d5       cd5      Nc6      Bf5[2]   dc4      e6       Bd6      bc6[5]   37%

2  ...      ...      ...      a4[6]    Bd7      d4[8]    Bf4[9]   Ra2      13:
    ...      ...      Bd7      a6[7]    Nd7      e6       Qb6[10]  h6[11]   35%

3  ...      ...      ...      Bd7      Nf3      d4[14]   OO       c3       14:
    ...      ...      ...      Nd7[12]  e6[13]   Bd6[15]  Ngf6[16] h6[17]   46%

4  ...      ...      ...      ...      ...      OO       d4       Nc3[20]   9:
    ...      ...      ...      ...      ...      Qc7[18]  Bd6[19]  a6[21]   50%

5  ...      ...      ...      ...      ...      ...      d4[22]   c3[23]    9:
    ...      ...      ...      ...      ...      Ngf6     Bd6      h6[24]   50%

6  ...      ...      Bb3      d4[25]   Nf3[27]  OO       Bf4      c3[30]   11:
    ...      ...      Nc6      Bf5[26]  e6[28]   Nf6[29]  Be7      Nh5[31]  27%

7  ...      ...      ...      ...      ...      ...      c4[32]   Bc4       6:
    ...      ...      ...      ...      ...      Bd6      dc4      Nf6[33]  33%

8  ...      ...      ...      d4[34]   Nf3[36]  Bf4      OO       c3       10:
    ...      ...      Nf6      Bf5[35]  e6[37]   Be7      Nc6      Nh5[38]  45%

9  ...      ...      ...      h3       Nf3[40]  d4       OO       c3        7:
    ...      ...      ...      e6[39]   Bd6[41]  b5       OO       a5[42]   50%

10  ...      ...      ...      d4       Nf3[44]  Qe2[46]  Nh4      f3       15:
    ...      ...      Bf5      e6[43]   Bd6[45]  Nf6[47]  Bg4[48]  Ng8[49]  43%

11  ...      ...      ...      Nf3      d4[50]   OO       Re1      Nh4      10:
    ...      ...      ...      e6       Nc6[51]  Bd6[52]  Nge7     Qc7[53]  55%

12  ...      ...      ...      ...      ...      OO[54]   c4       Bc4      10:
    ...      ...      ...      ...      Bd6      h6       dc4      Nf6[55]  50%

-------------------------------------------------------------------------------
Parent - - By sarona (*) Date 2021-06-14 20:29
Thanks for that chart.

Currently on the road and this stuff will keep me "entertained" while away. Reading posts using an iPhone really is a lousy experience.:sad:

I thought maybe Stockfish was playing with contempt at 24, but they have it set at 0.
Parent - By MrKris (***) Date 2021-06-15 00:16

> I thought maybe Stockfish was playing with contempt at 24, but they have it set at 0.


Thanks! I did not notice that!
(I do not see the point of C=0.
Or why they can't keep up better like https://www.sp-cc.de/ which has Sf June 1 & 4 already.)

They have been saying the same thing for the last several events, back through 'Sicilian Najdorf':

Stockfish International
Rating 3862
Version stockfish 240521
Updated 11/26/2020
Developed by T. Romstad M. Costalba J. Kiiski G. Linscott H. Noda Y. Nasu M. Isozaki
https://github.com/official-stockfish
This is the current development build of Stockfish! It uses both a neural-network and handcrafted evaluation...
Created 2020
Contempt 0
Hash 16384
SyzygyPath /data/tablebases
Threads 250
Use NNUE true
 

Then at 'Evan's Gambit' its
Version stockfish 210321
Updated 11/26/2020

If they have not updated their "Updated" for 7 months maybe they have not updated their "Contempt" some months or years.
I don't like that they don't seem to care about details since no one knows what else is a typo.
_ _ _

> Reading posts using an iPhone really is a lousy experience.:sad:


I'll try to be concise.

Something like this if you can use WiFi instead of cell data?
https://www.newegg.com/p/0EJ-00MC-00017?Item=0EJ-00MC-00017&quicklink=true
Parent - By MrKris (***) Date 2021-06-15 00:34

> Reading posts using an iPhone really is a lousy experience.:sad:


Or:
https://support.apple.com/en-us/HT204023
"How to set up a Personal Hotspot on your iPhone or iPad

A Personal Hotspot lets you share the cellular data connection of your iPhone or iPad (Wi-Fi + Cellular) when you don't have access to a Wi-Fi network.
Set up Personal Hotspot

    Go to Settings > Cellular > Personal Hotspot or Settings > Personal Hotspot.
    Tap the slider next to Allow Others to Join."

Then you can Join with a budget wi-fi tablet.
Up Topic The Rybka Lounge / Computer Chess / CCC: Double Bongcloud, Rapid (10|2)

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