Hi to all.
Now, the first game against Stockfish, taking the e7 pawn.
A draw.
I think I was playing quite well, but I missed 12... b5
I was not worried, because I thought that my queenside majority would decide the game.
From Stockfish's evaluation, I see that my decisive mistake was 13. d5
I am not sure what I should have played instead, I will analyze it later.
After that, it is a dead draw (of course, I did not know that during the game).
I missed 26... Qg2, which in this position did not have any negative consequences... but in an even game, such an oversight is fatal.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.10"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jeses"]
[Black "Stockfish 15"]
[Result "1/2-1/2"]
[Time "19:14:45"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pppp1ppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "repetition"]
1. e4 Ke7 {+4.01/25 83697 35975122} 2. Ke2 g6 {+4.08/24 39181 19076898} 3. Ke3
f6 {+4.21/22 23036 12871589} 4. d4 Ke6 {+4.56/24 80102 45384861} 5. f4 d5
{+4.25/21 19743 11758614} 6. exd5+ Kxd5 {+5.23/21 51973 27661297} 7. Kd3 Kd6
{+5.77/23 109483 66872558} 8. c4 h6 {+6.38/24 99840 59680406} 9. b4 Ke6
{+7.37/22 93186 50364249} 10. Ke4 c6 {+6.62/22 62190 34092779} 11. f5+ gxf5+
{+9.05/29 10 39210345} 12. Kf4 b5 {+9.74/22 27355 22564826} 13. d5+ cxd5
{+0.12/32 7131 5293074} 14. cxb5 d4 {+0.12/32 1276 3532719} 15. a4 Kd5 {+0.12/39
10 18232921} 16. a5 Kc4 {+0.11/39 7096 7480250} 17. b6 axb6 {+0.06/40 11601
12563863} 18. axb6 d3 {+0.00/39 10 13306949} 19. b7 d2 {+0.00/46 10 21761202}
20. b8=Q d1=Q {+0.00/44 1535 7039895} 21. Kxf5 Qh5+ {+0.00/55 12377 9359411} 22.
Kxf6 Qg5+ {+0.00/53 11374 8430894} 23. Kf7 Qf5+ {+0.00/59 10 19897180} 24. Ke7
Qg5+ {+0.00/60 14251 10895727} 25. Kd7 Qg4+ {+0.00/58 13164 9840185} 26. Kc6
Qxg2+ {+0.00/46 11623 10035851} 27. Kd7 Qg4+ {+0.00/50 13085 9937413} 28. Ke7
Qg7+ {+0.00/55 5603 8128201} 29. Ke6 Qg4+ {+0.00/55 9273 9523944} 30. Ke7 Qg7+
{+0.00/55 10669 8054758} 31. Ke6 Qg4+ {+0.00/56 10 13108326} 32. Ke7 1/2-1/2
[/pgn]
Next game is against Berserk, taking the f7 pawn.
Greetings.
Pawn endinge challenge: human vs engines.
Moderator: Ras
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Berserk, taking the f7 pawn.
A win for me.
I had to play carefully, but the game itself was not difficult.
After I got two passed pawns with 21. c6, I was sure about the win.
But even before I felt confident.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.16"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Berserk 9"]
[Result "1-0"]
[Time "19:43:53"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppp1pp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. f4 Kf7 {+2.73/20 20548 19191991} 2. Kf2 e6 {+2.66/23 41359 42105791} 3. Kf3
d6 {+2.66/23 4160 18682234} 4. e4 Kf6 {+2.67/23 110121 88560267} 5. g4 c6
{+2.61/23 109375 90704713} 6. d4 g5 {+3.14/25 100132 115732950} 7. fxg5+ Kxg5
{+3.78/21 43311 36432785} 8. Kg3 h5 {+4.70/24 168389 137340699} 9. h4+ Kg6
{+6.60/22 10 80822518} 10. g5 Kf7 {+5.85/20 69442 53810609} 11. Kf4 Kg6
{+6.85/19 10 20458324} 12. Ke3 Kf7 {+4.26/20 31972 26091902} 13. Kd3 Kf8
{+5.76/18 15869 12272114} 14. d5 cxd5 {+5.09/16 10 3302617} 15. exd5 e5
{+8.54/18 8994 10109020} 16. Ke4 Kg7 {+10.76/19 19714 17752008} 17. Kf5 b6
{+8.54/18 10 12886206} 18. c4 Kf7 {+16.86/19 19931 20634257} 19. b4 Ke7
{+16.73/17 10 5598218} 20. c5 Kd7 {+21.44/18 19965 21368373} 21. c6+ Ke8
{+25.58/16 9351 8506477} 22. g6 a6 {+24.29/16 12980 12875573} 23. g7 Kf7 {M-5/36
1394 1425551} 24. c7 Kxg7 {M-4/55 285 3271672} 25. c8=Q a5 {M-3/88 576 5190770}
26. Qd7+ Kg8 {M-2/114 19148 2151036} 27. Kf6 axb4 {M-1/127 10 45551} 28. Qg7#
1-0
[/pgn]
Next game is against Crafty, taking the g7 pawn.
Greetings.
Now, the game against Berserk, taking the f7 pawn.
A win for me.
I had to play carefully, but the game itself was not difficult.
After I got two passed pawns with 21. c6, I was sure about the win.
But even before I felt confident.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.16"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Berserk 9"]
[Result "1-0"]
[Time "19:43:53"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppp1pp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. f4 Kf7 {+2.73/20 20548 19191991} 2. Kf2 e6 {+2.66/23 41359 42105791} 3. Kf3
d6 {+2.66/23 4160 18682234} 4. e4 Kf6 {+2.67/23 110121 88560267} 5. g4 c6
{+2.61/23 109375 90704713} 6. d4 g5 {+3.14/25 100132 115732950} 7. fxg5+ Kxg5
{+3.78/21 43311 36432785} 8. Kg3 h5 {+4.70/24 168389 137340699} 9. h4+ Kg6
{+6.60/22 10 80822518} 10. g5 Kf7 {+5.85/20 69442 53810609} 11. Kf4 Kg6
{+6.85/19 10 20458324} 12. Ke3 Kf7 {+4.26/20 31972 26091902} 13. Kd3 Kf8
{+5.76/18 15869 12272114} 14. d5 cxd5 {+5.09/16 10 3302617} 15. exd5 e5
{+8.54/18 8994 10109020} 16. Ke4 Kg7 {+10.76/19 19714 17752008} 17. Kf5 b6
{+8.54/18 10 12886206} 18. c4 Kf7 {+16.86/19 19931 20634257} 19. b4 Ke7
{+16.73/17 10 5598218} 20. c5 Kd7 {+21.44/18 19965 21368373} 21. c6+ Ke8
{+25.58/16 9351 8506477} 22. g6 a6 {+24.29/16 12980 12875573} 23. g7 Kf7 {M-5/36
1394 1425551} 24. c7 Kxg7 {M-4/55 285 3271672} 25. c8=Q a5 {M-3/88 576 5190770}
26. Qd7+ Kg8 {M-2/114 19148 2151036} 27. Kf6 axb4 {M-1/127 10 45551} 28. Qg7#
1-0
[/pgn]
Next game is against Crafty, taking the g7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Crafty, removing the g7 pawn.
A win for me.
I got a big scare when Crafty played 17... Kg7, and thought that I had just blundered the win away.
But then I realized that I am not forced to capture with gh7, and that my h5 pawn is actually under no threat (the Black king must remain inside the square of the g6 pawn). I can simply leave the kingside pawns where they are.
Oh, I still do not find the way to keep Crafty from resigning. This time, I set resign = 327.67
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.17"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Crafty-25.3"]
[Result "1-0"]
[BlackElo "2600"]
[Time "20:55:52"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pppppp1p/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "resign"]
1. g4 d6 {-1.37/22 108697 374089755} 2. f4 Kd7 {-1.38/21 25315 49040225} 3. Kf2
d5 {-1.52/21 68757 146307348} 4. h4 e6 {-1.83/22 75789 236851745} 5. e3 c5
{-1.53/22 17091 48640566} 6. Kf3 f6 {-1.87/22 75404 244820836} 7. d3 Ke7
{-1.95/22 36956 75715263} 8. g5 Kf7 {-2.00/21 69508 240244544} 9. h5 a6
{-2.00/23 36351 114745675} 10. Ke2 Kg7 {-1.92/23 30944 116548550} 11. Kd2 e5
{-1.93/23 28868 90865382} 12. Ke2 exf4 {-1.98/26 10278 15541659} 13. exf4 Kf7
{-2.37/24 17935 61567929} 14. Kf3 a5 {-3.52/25 48659 163970438} 15. Kg4 Ke6
{-4.86/25 29633 89415377} 16. f5+ Kf7 {-7.02/25 12330 42114211} 17. g6+ Kg7
{-9.15/28 8041 32633778} 18. Kf4 b5 {-5.84/25 13759 37376942} 19. c3 Kh8
{-7.15/26 29896 102516273} 20. b3 c4 {-10.82/26 23231 62358102} 21. dxc4 dxc4
{-327.39/30 7240 28711065} 22. bxc4 bxc4 {-327.41/29 7112 39174831} 23. Ke4 Kg7
{-327.33/28 19317 85561958} 24. Kd4 hxg6 {-327.39/28 7278 31745898} 25. hxg6 a4
{-327.41/27 7595 29096783} 26. Kxc4 Kh6 {-327.43/25 7163 33420686} 27. Kd5 Kg7
{-327.47/29 7487 17634732} 28. c4 a3 {-327.49/33 7335 28212597} 29. c5 Kf8
{-327.51/50 7337 22673168} 30. c6 Ke7 {-327.53/91 7474 25420679} 31. c7 Kd7
{-327.55/124 621 397} 32. g7 Kxc7 {-327.57/124 16 527} 33. g8=Q Kb7 {-327.59/124
10 478} 34. Qe6 Kc7 {-327.59/124 2330 6950990} 35. Kc5 1-0
[/pgn]
Next game is against Lc0, taking the h7 pawn.
Greetings.
Now, the game against Crafty, removing the g7 pawn.
A win for me.
I got a big scare when Crafty played 17... Kg7, and thought that I had just blundered the win away.
But then I realized that I am not forced to capture with gh7, and that my h5 pawn is actually under no threat (the Black king must remain inside the square of the g6 pawn). I can simply leave the kingside pawns where they are.
Oh, I still do not find the way to keep Crafty from resigning. This time, I set resign = 327.67
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.17"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Crafty-25.3"]
[Result "1-0"]
[BlackElo "2600"]
[Time "20:55:52"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pppppp1p/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "resign"]
1. g4 d6 {-1.37/22 108697 374089755} 2. f4 Kd7 {-1.38/21 25315 49040225} 3. Kf2
d5 {-1.52/21 68757 146307348} 4. h4 e6 {-1.83/22 75789 236851745} 5. e3 c5
{-1.53/22 17091 48640566} 6. Kf3 f6 {-1.87/22 75404 244820836} 7. d3 Ke7
{-1.95/22 36956 75715263} 8. g5 Kf7 {-2.00/21 69508 240244544} 9. h5 a6
{-2.00/23 36351 114745675} 10. Ke2 Kg7 {-1.92/23 30944 116548550} 11. Kd2 e5
{-1.93/23 28868 90865382} 12. Ke2 exf4 {-1.98/26 10278 15541659} 13. exf4 Kf7
{-2.37/24 17935 61567929} 14. Kf3 a5 {-3.52/25 48659 163970438} 15. Kg4 Ke6
{-4.86/25 29633 89415377} 16. f5+ Kf7 {-7.02/25 12330 42114211} 17. g6+ Kg7
{-9.15/28 8041 32633778} 18. Kf4 b5 {-5.84/25 13759 37376942} 19. c3 Kh8
{-7.15/26 29896 102516273} 20. b3 c4 {-10.82/26 23231 62358102} 21. dxc4 dxc4
{-327.39/30 7240 28711065} 22. bxc4 bxc4 {-327.41/29 7112 39174831} 23. Ke4 Kg7
{-327.33/28 19317 85561958} 24. Kd4 hxg6 {-327.39/28 7278 31745898} 25. hxg6 a4
{-327.41/27 7595 29096783} 26. Kxc4 Kh6 {-327.43/25 7163 33420686} 27. Kd5 Kg7
{-327.47/29 7487 17634732} 28. c4 a3 {-327.49/33 7335 28212597} 29. c5 Kf8
{-327.51/50 7337 22673168} 30. c6 Ke7 {-327.53/91 7474 25420679} 31. c7 Kd7
{-327.55/124 621 397} 32. g7 Kxc7 {-327.57/124 16 527} 33. g8=Q Kb7 {-327.59/124
10 478} 34. Qe6 Kc7 {-327.59/124 2330 6950990} 35. Kc5 1-0
[/pgn]
Next game is against Lc0, taking the h7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the first game against Komodo, taking the h7 pawn (I incorrectly announced, in my previous post, that this game was against Lc0).
A draw.
I think my setup was not very good, allowing Komodo to have a pawn majority, which ties my king down.
During the game, I thought that it was a dead draw after 19... dc3, and made the last moves just for fun (¿perhaps I discover a bug in Komodo?).
I see that Komodo still gives me a large advantage after that move.
When I saw it, I thought first that Komodo was simply misevaluating the position.
Now I see that I might have had some winning chances.
I did not consider going with my king to the g-file, under the wrong assumption that I would lose (Komodo promotes a queenside pawn). However, I see now that I could have promoted a queenside pawn of my own immediately after. I would be two pawns up... worth playing out.
But I did not see any of this during the game: in my mind, it was impossible for my king to go to the g-file.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.18"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Komodo 13.02 64-bit"]
[Result "1/2-1/2"]
[BlackElo "3500"]
[Time "19:00:47"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppppp1/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "repetition"]
1. h4 f5 {+1.94/24 22433 23157034} 2. g3 Kf7 {+1.77/24 22517 24611281} 3. f3 e5
{+1.76/24 24599 25741998} 4. g4 f4 {+1.94/24 107080 117625419} 5. e3 fxe3
{+2.16/24 10 36514988} 6. dxe3 Ke6 {+2.77/23 47749 59944333} 7. e4 Kf6 {+2.48/26
36219 38485799} 8. Kf2 b5 {+3.32/23 63582 73091297} 9. Kg3 a5 {+4.29/24 73458
73856695} 10. f4 Ke6 {+5.60/24 127664 133235752} 11. f5+ Kf7 {+6.61/26 28905
35113241} 12. h5 d6 {+9.00/25 38874 34709972} 13. g5 c6 {+10.04/26 18817
25847497} 14. Kf3 d5 {+8.72/23 13162 13289058} 15. Ke3 d4+ {+3.89/23 14165
15208681} 16. Kd3 c5 {+3.66/26 16526 14328951} 17. b3 a4 {+3.73/27 5297
20734753} 18. c3 axb3 {+3.66/34 10 86177959} 19. axb3 dxc3 {+3.84/32 11420
19017449} 20. Kxc3 Kf8 {+3.59/33 29371 43054813} 21. Kd3 Ke7 {+3.51/32 13021
21687634} 22. Ke3 Kf7 {+3.85/33 28651 57785355} 23. Kf3 Kf8 {+3.77/29 10951
18365712} 24. h6 gxh6 {+3.51/34 10 73246924} 25. gxh6 Kf7 {+3.46/33 13980
30485303} 26. Kf2 Kf6 {+4.48/33 51356 80413095} 27. Kf1 Kf7 {+3.56/32 12072
18212107} 28. Ke1 Kf6 {+2.46/31 9885 18700429} 29. Ke2 Kf7 {+3.10/32 23151
39352859} 30. Ke3 Kf6 {+3.41/33 10531 19873260} 31. Kd3 Kf7 {+3.60/32 13394
28844801} 32. Kd2 Kf6 {+3.41/32 14770 26691644} 33. Kd1 Kf7 {+3.46/33 11434
22577875} 34. Kc1 Kf6 {+2.68/33 17253 31913791} 35. Kc2 Kf7 {+4.35/34 9634
23513409} 36. Kc3 Kf6 {+2.00/35 20232 35221001} 37. Kb2 Kf7 {+2.51/36 10
35171862} 38. Kb1 Kf6 {+2.82/34 29482 48191778} 39. Ka1 Kf7 {+3.47/33 7755
15180953} 40. Ka2 Kf6 {+2.68/32 2128 8013352} 41. Ka3 Kf7 {+3.07/33 15986
26780142} 42. Kb2 Kf6 {+3.35/35 10 18843943} 43. Kb1 Kf7 {+1.66/35 14647
26880994} 44. Kc1 Kf6 {+3.47/31 9237 17845163} 45. Kc2 Kf7 {+3.47/32 6093
13083780} 46. Kc3 Kf6 {+1.89/32 9392 18875205} 47. Kd3 Kf7 {+3.35/34 13746
27787266} 48. Kd2 Kf6 {+1.85/35 14226 20376537} 49. Kd1 Kf7 {+2.24/33 18662
35775384} 50. Ke1 Kf6 {+2.87/33 10006 20217783} 51. Ke2 Kf7 {+2.98/33 15667
31127363} 52. Ke3 Kf6 {+2.89/32 10224 19938538} 53. Kf3 Kf7 {+2.87/30 3869
7201942} 54. Kf2 Kf6 {+2.66/32 15896 30089270} 55. Kf1 Kf7 {+2.82/30 5114
9464431} 56. b4 c4 {+0.00/39 7285 11330007} 57. Kf2 Kf6 {+0.00/40 6813 9977839}
58. Kf3 Kf7 {+0.00/40 9006 13180766} 59. Ke3 Kf6 {+0.00/44 3936 11843797} 60.
Ke2 Kf7 {+0.00/44 8548 11613364} 61. Ke1 Kf6 {+0.00/47 1452 12936828} 62. Kd1
Kf7 {+0.00/52 12100 19746015} 63. Kd2 Kf6 {+0.00/52 13096 19747221} 64. Kc3 Kf7
{+0.00/57 15500 21475145} 65. Kc2 Kf6 {+0.00/59 26692 43008520} 66. Kc1 Kf7
{+0.00/53 6280 29028453} 67. Kb1 Kf6 {+0.00/60 14236 23442413} 68. Kb2 Kf7
{+0.00/60 10 3438642} 69. Ka3 Kf6 {+0.00/46 7740 11802417} 70. Ka2 Kf7 {+0.00/51
4788 9922590} 71. Ka1 Kf6 {+0.00/49 7059 11570165} 72. Kb2 Kf7 {+0.00/61 20826
33759084} 73. Kc3 Kf6 {+0.00/62 6901 15617703} 74. Kc2 Kf7 {+0.00/56 22337
35277814} 75. Kc3 Kf6 {+0.00/61 6114 11242161} 76. Kc2 Kf7 {+0.00/55 6684
27793449} 77. Kc3 1/2-1/2
[/pgn]
Next game is against Lc0, taking the a7 pawn.
Greetings.
Now, the first game against Komodo, taking the h7 pawn (I incorrectly announced, in my previous post, that this game was against Lc0).
A draw.
I think my setup was not very good, allowing Komodo to have a pawn majority, which ties my king down.
During the game, I thought that it was a dead draw after 19... dc3, and made the last moves just for fun (¿perhaps I discover a bug in Komodo?).
I see that Komodo still gives me a large advantage after that move.
When I saw it, I thought first that Komodo was simply misevaluating the position.
Now I see that I might have had some winning chances.
I did not consider going with my king to the g-file, under the wrong assumption that I would lose (Komodo promotes a queenside pawn). However, I see now that I could have promoted a queenside pawn of my own immediately after. I would be two pawns up... worth playing out.
But I did not see any of this during the game: in my mind, it was impossible for my king to go to the g-file.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.18"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Komodo 13.02 64-bit"]
[Result "1/2-1/2"]
[BlackElo "3500"]
[Time "19:00:47"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppppp1/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "repetition"]
1. h4 f5 {+1.94/24 22433 23157034} 2. g3 Kf7 {+1.77/24 22517 24611281} 3. f3 e5
{+1.76/24 24599 25741998} 4. g4 f4 {+1.94/24 107080 117625419} 5. e3 fxe3
{+2.16/24 10 36514988} 6. dxe3 Ke6 {+2.77/23 47749 59944333} 7. e4 Kf6 {+2.48/26
36219 38485799} 8. Kf2 b5 {+3.32/23 63582 73091297} 9. Kg3 a5 {+4.29/24 73458
73856695} 10. f4 Ke6 {+5.60/24 127664 133235752} 11. f5+ Kf7 {+6.61/26 28905
35113241} 12. h5 d6 {+9.00/25 38874 34709972} 13. g5 c6 {+10.04/26 18817
25847497} 14. Kf3 d5 {+8.72/23 13162 13289058} 15. Ke3 d4+ {+3.89/23 14165
15208681} 16. Kd3 c5 {+3.66/26 16526 14328951} 17. b3 a4 {+3.73/27 5297
20734753} 18. c3 axb3 {+3.66/34 10 86177959} 19. axb3 dxc3 {+3.84/32 11420
19017449} 20. Kxc3 Kf8 {+3.59/33 29371 43054813} 21. Kd3 Ke7 {+3.51/32 13021
21687634} 22. Ke3 Kf7 {+3.85/33 28651 57785355} 23. Kf3 Kf8 {+3.77/29 10951
18365712} 24. h6 gxh6 {+3.51/34 10 73246924} 25. gxh6 Kf7 {+3.46/33 13980
30485303} 26. Kf2 Kf6 {+4.48/33 51356 80413095} 27. Kf1 Kf7 {+3.56/32 12072
18212107} 28. Ke1 Kf6 {+2.46/31 9885 18700429} 29. Ke2 Kf7 {+3.10/32 23151
39352859} 30. Ke3 Kf6 {+3.41/33 10531 19873260} 31. Kd3 Kf7 {+3.60/32 13394
28844801} 32. Kd2 Kf6 {+3.41/32 14770 26691644} 33. Kd1 Kf7 {+3.46/33 11434
22577875} 34. Kc1 Kf6 {+2.68/33 17253 31913791} 35. Kc2 Kf7 {+4.35/34 9634
23513409} 36. Kc3 Kf6 {+2.00/35 20232 35221001} 37. Kb2 Kf7 {+2.51/36 10
35171862} 38. Kb1 Kf6 {+2.82/34 29482 48191778} 39. Ka1 Kf7 {+3.47/33 7755
15180953} 40. Ka2 Kf6 {+2.68/32 2128 8013352} 41. Ka3 Kf7 {+3.07/33 15986
26780142} 42. Kb2 Kf6 {+3.35/35 10 18843943} 43. Kb1 Kf7 {+1.66/35 14647
26880994} 44. Kc1 Kf6 {+3.47/31 9237 17845163} 45. Kc2 Kf7 {+3.47/32 6093
13083780} 46. Kc3 Kf6 {+1.89/32 9392 18875205} 47. Kd3 Kf7 {+3.35/34 13746
27787266} 48. Kd2 Kf6 {+1.85/35 14226 20376537} 49. Kd1 Kf7 {+2.24/33 18662
35775384} 50. Ke1 Kf6 {+2.87/33 10006 20217783} 51. Ke2 Kf7 {+2.98/33 15667
31127363} 52. Ke3 Kf6 {+2.89/32 10224 19938538} 53. Kf3 Kf7 {+2.87/30 3869
7201942} 54. Kf2 Kf6 {+2.66/32 15896 30089270} 55. Kf1 Kf7 {+2.82/30 5114
9464431} 56. b4 c4 {+0.00/39 7285 11330007} 57. Kf2 Kf6 {+0.00/40 6813 9977839}
58. Kf3 Kf7 {+0.00/40 9006 13180766} 59. Ke3 Kf6 {+0.00/44 3936 11843797} 60.
Ke2 Kf7 {+0.00/44 8548 11613364} 61. Ke1 Kf6 {+0.00/47 1452 12936828} 62. Kd1
Kf7 {+0.00/52 12100 19746015} 63. Kd2 Kf6 {+0.00/52 13096 19747221} 64. Kc3 Kf7
{+0.00/57 15500 21475145} 65. Kc2 Kf6 {+0.00/59 26692 43008520} 66. Kc1 Kf7
{+0.00/53 6280 29028453} 67. Kb1 Kf6 {+0.00/60 14236 23442413} 68. Kb2 Kf7
{+0.00/60 10 3438642} 69. Ka3 Kf6 {+0.00/46 7740 11802417} 70. Ka2 Kf7 {+0.00/51
4788 9922590} 71. Ka1 Kf6 {+0.00/49 7059 11570165} 72. Kb2 Kf7 {+0.00/61 20826
33759084} 73. Kc3 Kf6 {+0.00/62 6901 15617703} 74. Kc2 Kf7 {+0.00/56 22337
35277814} 75. Kc3 Kf6 {+0.00/61 6114 11242161} 76. Kc2 Kf7 {+0.00/55 6684
27793449} 77. Kc3 1/2-1/2
[/pgn]
Next game is against Lc0, taking the a7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the first game against Lc0, taking the a7 pawn.
A draw.
Of course, I saw that the queenside would get almost closed, but intended to break through the kingside.
After 11. b4, I thought that Lc0 could not go after my c3 pawn, since my b pawn queens first.
But I missed that my new queen simply does not have enough space to deliver checks and force Black's king into c1.
Somehow, I feel that I missed a simple winning plan.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.24"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Lc0 v0.27.0"]
[Result "1/2-1/2"]
[BlackElo "3500"]
[Time "21:20:56"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/1ppppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "repetition"]
1. a4 c5 {+4.48/5 62433 4778} 2. b3 d5 {+4.25/5 38669 2780} 3. c3 Kd7 {+3.73/5
16385 1535} 4. d3 Kc6 {+3.94/5 21742 2242} 5. Kd2 b5 {+3.30/5 14873 1727} 6.
axb5+ Kxb5 {+3.78/6 7258 1194} 7. e3 e5 {+3.53/5 5460 1977} 8. Kc2 f5 {+3.29/5
37312 3894} 9. f4 e4 {+2.30/7 17036 1519} 10. d4 c4 {+1.01/7 12239 1458} 11. b4
Kb6 {+0.54/7 32301 7519} 12. Kd2 Kb5 {+0.45/6 24739 6694} 13. Ke2 Ka4 {+0.58/9
44073 6005} 14. Kf2 g6 {+0.96/1 10 6716} 15. Kg3 h6 {+1.04/15 247 5007} 16. Kh4
Kb3 {+0.00/16 14661 7158} 17. b5 Kxc3 {+0.00/14 220 8974} 18. b6 Kd2 {-0.02/11
212 10674} 19. b7 c3 {-0.02/10 211 13241} 20. b8=Q c2 {-0.02/8 204 18094} 21.
Qb2 Kd1 {-0.03/6 233 18046} 22. Qb3 Kd2 {-0.01/1 11 43202} 23. Qb4+ Kd1 {-0.01/9
241 298290} 24. Qa4 Kd2 {-0.01/1 10 124727} 25. Qa2 Kd1 {-0.01/1 27 60599} 26.
Qb3 Kd2 {-0.01/1 21 205336} 27. Qb2 Kd1 {-0.02/1 10 59170} 28. Qb3 1/2-1/2
[/pgn]
Next game is against Stockfish, taking the b7 pawn.
Greetings.
Now, the first game against Lc0, taking the a7 pawn.
A draw.
Of course, I saw that the queenside would get almost closed, but intended to break through the kingside.
After 11. b4, I thought that Lc0 could not go after my c3 pawn, since my b pawn queens first.
But I missed that my new queen simply does not have enough space to deliver checks and force Black's king into c1.
Somehow, I feel that I missed a simple winning plan.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.24"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Lc0 v0.27.0"]
[Result "1/2-1/2"]
[BlackElo "3500"]
[Time "21:20:56"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/1ppppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "repetition"]
1. a4 c5 {+4.48/5 62433 4778} 2. b3 d5 {+4.25/5 38669 2780} 3. c3 Kd7 {+3.73/5
16385 1535} 4. d3 Kc6 {+3.94/5 21742 2242} 5. Kd2 b5 {+3.30/5 14873 1727} 6.
axb5+ Kxb5 {+3.78/6 7258 1194} 7. e3 e5 {+3.53/5 5460 1977} 8. Kc2 f5 {+3.29/5
37312 3894} 9. f4 e4 {+2.30/7 17036 1519} 10. d4 c4 {+1.01/7 12239 1458} 11. b4
Kb6 {+0.54/7 32301 7519} 12. Kd2 Kb5 {+0.45/6 24739 6694} 13. Ke2 Ka4 {+0.58/9
44073 6005} 14. Kf2 g6 {+0.96/1 10 6716} 15. Kg3 h6 {+1.04/15 247 5007} 16. Kh4
Kb3 {+0.00/16 14661 7158} 17. b5 Kxc3 {+0.00/14 220 8974} 18. b6 Kd2 {-0.02/11
212 10674} 19. b7 c3 {-0.02/10 211 13241} 20. b8=Q c2 {-0.02/8 204 18094} 21.
Qb2 Kd1 {-0.03/6 233 18046} 22. Qb3 Kd2 {-0.01/1 11 43202} 23. Qb4+ Kd1 {-0.01/9
241 298290} 24. Qa4 Kd2 {-0.01/1 10 124727} 25. Qa2 Kd1 {-0.01/1 27 60599} 26.
Qb3 Kd2 {-0.01/1 21 205336} 27. Qb2 Kd1 {-0.02/1 10 59170} 28. Qb3 1/2-1/2
[/pgn]
Next game is against Stockfish, taking the b7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Stockfish, taking the b7 pawn.
A win for me.
Actually, I think this was a nice game.
Nothing spectacular, I was just rewarded for being patient. Trying to create a passed pawn, but without rushing. And keeping Black's possible counterplay to a minimum.
When Stockfish began giving pawns up with 16... g5, I felt sure about the win.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.26"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Stockfish 15"]
[Result "1-0"]
[Time "18:55:13"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/p1pppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. b4 d6 {+3.80/29 83698 43580761} 2. c4 Kd7 {+3.90/25 18657 12554514} 3. a4 Kc6
{+3.87/25 101018 52058800} 4. d4 Kb7 {+4.18/25 89914 51913580} 5. Kd2 c5
{+4.44/25 76507 43189540} 6. Kc3 h5 {+5.26/24 50778 59948991} 7. e3 cxb4+
{+5.51/24 104568 57538844} 8. Kxb4 h4 {+6.52/24 94084 53001085} 9. c5 f5
{+7.16/23 48601 28146603} 10. d5 dxc5+ {+7.47/18 10985 6326533} 11. Kxc5 Kc7
{+7.83/19 1044 3888195} 12. f3 Kd8 {+8.50/22 24098 19260154} 13. e4 g6 {+9.43/22
12816 9854062} 14. e5 Kd7 {+10.27/21 6949 6350894} 15. f4 Ke8 {+13.83/20 13004
13152971} 16. Kc6 g5 {+17.68/21 10602 11220692} 17. fxg5 Kf7 {+23.74/22 10
14439384} 18. d6 f4 {+32.21/22 6116 13157484} 19. h3 f3 {M-16/34 11373 15277900}
20. gxf3 exd6 {M-10/34 6738 8763562} 21. exd6 Kg6 {M-9/35 754 5254824} 22. d7
Kxg5 {M-11/35 7057 7118817} 23. d8=Q+ Kf4 {M-10/35 4085 6598089} 24. Qxh4+ Ke3
{M-8/35 1258 9099677} 25. Kd5 Ke2 {M-6/42 9933 12655769} 26. Ke4 a6 {M-5/245 602
23455796} 27. Qg4 Kd2 {M-5/245 6917 22139085} 28. Kd4 Kc2 {M-5/245 7204
23191025} 29. Kc4 Kd2 {M-4/245 334 819893} 30. Qe4 a5 {M-3/245 10 20192} 31. f4
Kc1 {M-3/245 96 261447} 32. Qe2 Kb1 {M-2/245 10 8044} 33. Kb3 Kc1 {M-1/245 30
995} 34. Qe1# 1-0
[/pgn]
Next game is against Berserk, taking the c7 pawn.
Greetings.
Now, the game against Stockfish, taking the b7 pawn.
A win for me.
Actually, I think this was a nice game.
Nothing spectacular, I was just rewarded for being patient. Trying to create a passed pawn, but without rushing. And keeping Black's possible counterplay to a minimum.
When Stockfish began giving pawns up with 16... g5, I felt sure about the win.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.10.26"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Stockfish 15"]
[Result "1-0"]
[Time "18:55:13"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/p1pppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. b4 d6 {+3.80/29 83698 43580761} 2. c4 Kd7 {+3.90/25 18657 12554514} 3. a4 Kc6
{+3.87/25 101018 52058800} 4. d4 Kb7 {+4.18/25 89914 51913580} 5. Kd2 c5
{+4.44/25 76507 43189540} 6. Kc3 h5 {+5.26/24 50778 59948991} 7. e3 cxb4+
{+5.51/24 104568 57538844} 8. Kxb4 h4 {+6.52/24 94084 53001085} 9. c5 f5
{+7.16/23 48601 28146603} 10. d5 dxc5+ {+7.47/18 10985 6326533} 11. Kxc5 Kc7
{+7.83/19 1044 3888195} 12. f3 Kd8 {+8.50/22 24098 19260154} 13. e4 g6 {+9.43/22
12816 9854062} 14. e5 Kd7 {+10.27/21 6949 6350894} 15. f4 Ke8 {+13.83/20 13004
13152971} 16. Kc6 g5 {+17.68/21 10602 11220692} 17. fxg5 Kf7 {+23.74/22 10
14439384} 18. d6 f4 {+32.21/22 6116 13157484} 19. h3 f3 {M-16/34 11373 15277900}
20. gxf3 exd6 {M-10/34 6738 8763562} 21. exd6 Kg6 {M-9/35 754 5254824} 22. d7
Kxg5 {M-11/35 7057 7118817} 23. d8=Q+ Kf4 {M-10/35 4085 6598089} 24. Qxh4+ Ke3
{M-8/35 1258 9099677} 25. Kd5 Ke2 {M-6/42 9933 12655769} 26. Ke4 a6 {M-5/245 602
23455796} 27. Qg4 Kd2 {M-5/245 6917 22139085} 28. Kd4 Kc2 {M-5/245 7204
23191025} 29. Kc4 Kd2 {M-4/245 334 819893} 30. Qe4 a5 {M-3/245 10 20192} 31. f4
Kc1 {M-3/245 96 261447} 32. Qe2 Kb1 {M-2/245 10 8044} 33. Kb3 Kc1 {M-1/245 30
995} 34. Qe1# 1-0
[/pgn]
Next game is against Berserk, taking the c7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Berserk, taking the c7 pawn.
A win for me.
I had to play carefully (as is always the case when facing an engine), but the game was quite straightforward.
I tried to create a passed pawn on the queenside. But when Berserk gave the chance to create a distant passed pawn on the kingside, I took it.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.06"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Berserk 9"]
[Result "1-0"]
[Time "15:56:44"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pp1ppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. c4 e6 {+2.67/22 69793 60946453} 2. d4 d6 {+2.64/22 39319 37741150} 3. Kd2 Kd7
{+2.67/21 16923 15429391} 4. b4 Kc6 {+2.39/23 37974 34948161} 5. a4 b6 {+2.68/24
99267 92502822} 6. b5+ Kc7 {+3.43/22 130522 123275767} 7. e4 h6 {+3.96/23 199642
162192075} 8. f4 Kd7 {+4.31/23 57420 54637186} 9. Kc3 Kc7 {+4.24/19 21849
20257459} 10. Kb4 g5 {+4.20/18 9529 8597863} 11. fxg5 hxg5 {+5.84/18 10 9949833}
12. h3 f6 {+5.24/18 20804 16607918} 13. g3 f5 {+2.60/17 9467 9202475} 14. exf5
exf5 {+6.84/16 426 4104773} 15. Kc3 d5 {+8.66/19 7252 12674778} 16. c5 bxc5
{+11.77/19 22350 21231181} 17. dxc5 Kd7 {+14.46/17 928 5167021} 18. Kd4 f4
{+18.52/18 1448 12035198} 19. gxf4 gxf4 {+22.22/17 5531 7979889} 20. b6 f3
{+263.79/19 29655 30466639} 21. Ke3 f2 {+270.41/17 4037 7602134} 22. Kxf2 Kc6
{+277.05/17 10191 12367708} 23. a5 a6 {+272.07/18 17140 18389985} 24. h4 d4
{+10.35/15 4188 4364129} 25. h5 Kd7 {+273.11/16 13482 13286629} 26. h6 Kc6
{M-9/28 366 5086232} 27. h7 d3 {M-8/33 93 2733871} 28. h8=Q Kd5 {M-7/36 3276
3871031} 29. b7 d2 {M-5/50 1495 5676545} 30. Ke2 d1=Q+ {M-5/67 14705 14893969}
31. Kxd1 Kxc5 {M-4/75 2748 5902318} 32. b8=Q Kd5 {M-3/78 1267 9138532} 33. Qhe5+
Kc4 {M-2/127 602 587205} 34. Qbc7+ Kb3 {M-2/127 10856 9988722} 35. Qec3+ Ka2
{M-2/127 101 31833} 36. Q7c4+ Kb1 {M-1/127 70 9547} 37. Q4b3# 1-0
[/pgn]
The next game is against Crafty, taking the d7 pawn.
Greetings.
Now, the game against Berserk, taking the c7 pawn.
A win for me.
I had to play carefully (as is always the case when facing an engine), but the game was quite straightforward.
I tried to create a passed pawn on the queenside. But when Berserk gave the chance to create a distant passed pawn on the kingside, I took it.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.06"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Berserk 9"]
[Result "1-0"]
[Time "15:56:44"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pp1ppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. c4 e6 {+2.67/22 69793 60946453} 2. d4 d6 {+2.64/22 39319 37741150} 3. Kd2 Kd7
{+2.67/21 16923 15429391} 4. b4 Kc6 {+2.39/23 37974 34948161} 5. a4 b6 {+2.68/24
99267 92502822} 6. b5+ Kc7 {+3.43/22 130522 123275767} 7. e4 h6 {+3.96/23 199642
162192075} 8. f4 Kd7 {+4.31/23 57420 54637186} 9. Kc3 Kc7 {+4.24/19 21849
20257459} 10. Kb4 g5 {+4.20/18 9529 8597863} 11. fxg5 hxg5 {+5.84/18 10 9949833}
12. h3 f6 {+5.24/18 20804 16607918} 13. g3 f5 {+2.60/17 9467 9202475} 14. exf5
exf5 {+6.84/16 426 4104773} 15. Kc3 d5 {+8.66/19 7252 12674778} 16. c5 bxc5
{+11.77/19 22350 21231181} 17. dxc5 Kd7 {+14.46/17 928 5167021} 18. Kd4 f4
{+18.52/18 1448 12035198} 19. gxf4 gxf4 {+22.22/17 5531 7979889} 20. b6 f3
{+263.79/19 29655 30466639} 21. Ke3 f2 {+270.41/17 4037 7602134} 22. Kxf2 Kc6
{+277.05/17 10191 12367708} 23. a5 a6 {+272.07/18 17140 18389985} 24. h4 d4
{+10.35/15 4188 4364129} 25. h5 Kd7 {+273.11/16 13482 13286629} 26. h6 Kc6
{M-9/28 366 5086232} 27. h7 d3 {M-8/33 93 2733871} 28. h8=Q Kd5 {M-7/36 3276
3871031} 29. b7 d2 {M-5/50 1495 5676545} 30. Ke2 d1=Q+ {M-5/67 14705 14893969}
31. Kxd1 Kxc5 {M-4/75 2748 5902318} 32. b8=Q Kd5 {M-3/78 1267 9138532} 33. Qhe5+
Kc4 {M-2/127 602 587205} 34. Qbc7+ Kb3 {M-2/127 10856 9988722} 35. Qec3+ Ka2
{M-2/127 101 31833} 36. Q7c4+ Kb1 {M-1/127 70 9547} 37. Q4b3# 1-0
[/pgn]
The next game is against Crafty, taking the d7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Crafty, taking the d7 pawn.
A win for me.
Last things first. Crafty resigned; I take the point mostly because the final position is an easy win for me. But I would certainly prefer to play these challenges till mate.
I have not found a way to prevent Crafty from resigning.
This time, I sent the command:
computer
I understood that Crafty would not resign against computers.
But obviously it did not work the way I intended.
About the game, I liked my move 18. a4, keeping the Queenside closed to an eventual Black King's invasion.
Ok, I think it was not necessary, since I would promote a pawn in the Kingside long before Crafty could invade the Queenside, capture one of my pawns, and then promote one of its own. But it is a nice maneuver to know and actually play.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.09"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Crafty-25.3"]
[Result "1-0"]
[BlackElo "2600"]
[Time "15:36:18"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppp1pppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "resign"]
1. d4 Kd7 {-1.24/22 29021 81303989} 2. Kd2 Kd6 {-1.29/21 28262 3508192} 3. Kd3
e5 {-1.29/21 23071 50518372} 4. dxe5+ Kxe5 {-1.23/21 22651 55028400} 5. e4 g5
{-1.09/23 33341 104001254} 6. f3 Kf4 {-0.93/24 21427 66990759} 7. Ke2 g4
{-1.02/25 25412 85055042} 8. g3+ Ke5 {-1.07/26 27894 87275621} 9. Ke3 gxf3
{-1.23/24 20294 41194562} 10. Kxf3 a6 {-1.47/25 69179 216342436} 11. c3 c6
{-1.90/25 97604 313915588} 12. g4 a5 {-2.08/26 78516 267012491} 13. g5 b5
{-2.44/27 30400 88323437} 14. h4 c5 {-2.77/26 42568 125231874} 15. h5 c4
{-3.96/27 67253 245076051} 16. Ke3 b4 {-5.04/27 50150 170265482} 17. Kf3 Kd6
{-4.68/25 26550 98638800} 18. a4 bxa3 {-7.50/27 26312 100106856} 19. bxa3 Ke5
{-11.08/28 20197 76329886} 20. Ke3 a4 {-10.33/28 14548 55277691} 21. Kf3 f5
{-10.33/26 12509 4191955} 22. exf5 1-0
[/pgn]
Next game is against Komodo, taking the e7 pawn.
Greetings.
Now, the game against Crafty, taking the d7 pawn.
A win for me.
Last things first. Crafty resigned; I take the point mostly because the final position is an easy win for me. But I would certainly prefer to play these challenges till mate.
I have not found a way to prevent Crafty from resigning.
This time, I sent the command:
computer
I understood that Crafty would not resign against computers.
But obviously it did not work the way I intended.
About the game, I liked my move 18. a4, keeping the Queenside closed to an eventual Black King's invasion.
Ok, I think it was not necessary, since I would promote a pawn in the Kingside long before Crafty could invade the Queenside, capture one of my pawns, and then promote one of its own. But it is a nice maneuver to know and actually play.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.09"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Crafty-25.3"]
[Result "1-0"]
[BlackElo "2600"]
[Time "15:36:18"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppp1pppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "resign"]
1. d4 Kd7 {-1.24/22 29021 81303989} 2. Kd2 Kd6 {-1.29/21 28262 3508192} 3. Kd3
e5 {-1.29/21 23071 50518372} 4. dxe5+ Kxe5 {-1.23/21 22651 55028400} 5. e4 g5
{-1.09/23 33341 104001254} 6. f3 Kf4 {-0.93/24 21427 66990759} 7. Ke2 g4
{-1.02/25 25412 85055042} 8. g3+ Ke5 {-1.07/26 27894 87275621} 9. Ke3 gxf3
{-1.23/24 20294 41194562} 10. Kxf3 a6 {-1.47/25 69179 216342436} 11. c3 c6
{-1.90/25 97604 313915588} 12. g4 a5 {-2.08/26 78516 267012491} 13. g5 b5
{-2.44/27 30400 88323437} 14. h4 c5 {-2.77/26 42568 125231874} 15. h5 c4
{-3.96/27 67253 245076051} 16. Ke3 b4 {-5.04/27 50150 170265482} 17. Kf3 Kd6
{-4.68/25 26550 98638800} 18. a4 bxa3 {-7.50/27 26312 100106856} 19. bxa3 Ke5
{-11.08/28 20197 76329886} 20. Ke3 a4 {-10.33/28 14548 55277691} 21. Kf3 f5
{-10.33/26 12509 4191955} 22. exf5 1-0
[/pgn]
Next game is against Komodo, taking the e7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Komodo, taking the e7 pawn.
A win for me.
From moves 9 to 13, I had the chance to get a protected passed pawn with d5; which most likely is also winning.
But I think the plan I chose is much simpler. Try to get the passed pawn away from the kingside, on the c-file instead of the d-file.
Also, I think now that 21. Kd5 (in order to get the passed pawn on the b-file) was simpler than 21. c6 (protected passed pawn on the c-file).
But both choices win, of course.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.12"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Komodo 13.02 64-bit"]
[Result "1-0"]
[BlackElo "3500"]
[Time "18:15:34"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pppp1ppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. e4 Ke7 {+1.95/24 30375 34865951} 2. Ke2 Ke6 {+1.99/24 24948 39463081} 3. Ke3
d5 {+1.98/24 41908 53835160} 4. d4 f5 {+1.82/22 20713 24500430} 5. exd5+ Kxd5
{+2.31/23 18365 25519364} 6. Kd3 Ke6 {+2.17/24 79335 97956423} 7. c4 Kd6
{+2.51/24 67285 100362963} 8. Ke3 c5 {+3.15/23 12103 88643566} 9. f4 a5
{+3.67/23 44324 56542972} 10. Kd3 Kc6 {+4.48/24 14966 39391786} 11. Kc3 Kd6
{+5.13/25 3861 36270386} 12. b3 Kc6 {+6.27/25 30360 41873743} 13. dxc5 Kxc5
{+7.41/26 16748 33187976} 14. a3 Kd6 {+9.25/27 40898 51805150} 15. Kd4 Kc6
{+8.27/26 17623 31681251} 16. b4 Kd6 {+10.11/27 29739 38076934} 17. c5+ Kc6
{+11.90/27 74691 105896554} 18. Kc4 axb4 {+12.61/26 79167 122559675} 19. axb4 b6
{+14.83/28 10 127978398} 20. b5+ Kc7 {+18.51/26 16423 37457182} 21. c6 Kd6
{+11.82/30 31182 48799382} 22. Kd4 Ke6 {+11.76/30 99982 155171358} 23. Ke3 Ke7
{+12.81/28 20632 31035050} 24. Kf3 Kd8 {+12.01/30 13686 20834140} 25. Kg3 g6
{+12.16/28 10148 15766712} 26. Kh4 h6 {+12.55/22 10004 13016842} 27. g4 fxg4
{M-18/27 10 57506430} 28. Kxg4 Kc7 {M-15/26 10 3125265} 29. f5 h5+ {M-16/23
11225 17583510} 30. Kg5 gxf5 {M-15/26 10 3797081} 31. h4 Kd6 {M-14/27 10
17988643} 32. Kxf5 Kc7 {M-12/27 1699 11800409} 33. Kg5 Kd6 {M-11/29 2950
5360669} 34. Kxh5 Kc5 {M-10/28 75 2132414} 35. c7 Kxb5 {M-9/29 10 4606834} 36.
c8=Q Ka4 {M-8/30 10 5146266} 37. Kg4 b5 {M-7/27 1427 2797878} 38. h5 b4 {M-6/36
10 4305452} 39. h6 Kb5 {M-5/99 10 13029818} 40. h7 Ka5 {M-4/99 10 68192} 41.
h8=Q Ka4 {M-3/99 10 17968} 42. Qb2 Kb5 {M-3/99 176 205711} 43. Qb3 Kb6 {M-2/99
37 8430} 44. Qxb4+ Ka7 {M-1/99 10 197} 45. Qcb7# 1-0
[/pgn]
The next game is against Lc0, taking the f7 pawn.
Greetings.
Now, the game against Komodo, taking the e7 pawn.
A win for me.
From moves 9 to 13, I had the chance to get a protected passed pawn with d5; which most likely is also winning.
But I think the plan I chose is much simpler. Try to get the passed pawn away from the kingside, on the c-file instead of the d-file.
Also, I think now that 21. Kd5 (in order to get the passed pawn on the b-file) was simpler than 21. c6 (protected passed pawn on the c-file).
But both choices win, of course.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.12"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Komodo 13.02 64-bit"]
[Result "1-0"]
[BlackElo "3500"]
[Time "18:15:34"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pppp1ppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. e4 Ke7 {+1.95/24 30375 34865951} 2. Ke2 Ke6 {+1.99/24 24948 39463081} 3. Ke3
d5 {+1.98/24 41908 53835160} 4. d4 f5 {+1.82/22 20713 24500430} 5. exd5+ Kxd5
{+2.31/23 18365 25519364} 6. Kd3 Ke6 {+2.17/24 79335 97956423} 7. c4 Kd6
{+2.51/24 67285 100362963} 8. Ke3 c5 {+3.15/23 12103 88643566} 9. f4 a5
{+3.67/23 44324 56542972} 10. Kd3 Kc6 {+4.48/24 14966 39391786} 11. Kc3 Kd6
{+5.13/25 3861 36270386} 12. b3 Kc6 {+6.27/25 30360 41873743} 13. dxc5 Kxc5
{+7.41/26 16748 33187976} 14. a3 Kd6 {+9.25/27 40898 51805150} 15. Kd4 Kc6
{+8.27/26 17623 31681251} 16. b4 Kd6 {+10.11/27 29739 38076934} 17. c5+ Kc6
{+11.90/27 74691 105896554} 18. Kc4 axb4 {+12.61/26 79167 122559675} 19. axb4 b6
{+14.83/28 10 127978398} 20. b5+ Kc7 {+18.51/26 16423 37457182} 21. c6 Kd6
{+11.82/30 31182 48799382} 22. Kd4 Ke6 {+11.76/30 99982 155171358} 23. Ke3 Ke7
{+12.81/28 20632 31035050} 24. Kf3 Kd8 {+12.01/30 13686 20834140} 25. Kg3 g6
{+12.16/28 10148 15766712} 26. Kh4 h6 {+12.55/22 10004 13016842} 27. g4 fxg4
{M-18/27 10 57506430} 28. Kxg4 Kc7 {M-15/26 10 3125265} 29. f5 h5+ {M-16/23
11225 17583510} 30. Kg5 gxf5 {M-15/26 10 3797081} 31. h4 Kd6 {M-14/27 10
17988643} 32. Kxf5 Kc7 {M-12/27 1699 11800409} 33. Kg5 Kd6 {M-11/29 2950
5360669} 34. Kxh5 Kc5 {M-10/28 75 2132414} 35. c7 Kxb5 {M-9/29 10 4606834} 36.
c8=Q Ka4 {M-8/30 10 5146266} 37. Kg4 b5 {M-7/27 1427 2797878} 38. h5 b4 {M-6/36
10 4305452} 39. h6 Kb5 {M-5/99 10 13029818} 40. h7 Ka5 {M-4/99 10 68192} 41.
h8=Q Ka4 {M-3/99 10 17968} 42. Qb2 Kb5 {M-3/99 176 205711} 43. Qb3 Kb6 {M-2/99
37 8430} 44. Qxb4+ Ka7 {M-1/99 10 197} 45. Qcb7# 1-0
[/pgn]
The next game is against Lc0, taking the f7 pawn.
Greetings.
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.
Now, the game against Lc0, taking the f7 pawn.
A win for me.
Lc0 took what I think is the best defensive setup: three pawn islands, the pawn majority in the center island.
I had to make a few precise moves. When I made 13. d5, I had to be completely sure that I kept at least the same amount of reserve tempi as Lc0. Not very difficult in this particular position, but in general there is always room for some subtleties.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.21"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Lc0 v0.27.0"]
[Result "1-0"]
[BlackElo "3500"]
[Time "21:53:16"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppp1pp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. f4 Kf7 {+4.51/4 60553 4295} 2. Kf2 Kf6 {+5.00/4 26751 2201} 3. Kf3 e5
{+5.97/4 32020 2849} 4. e4 d6 {+5.83/5 31660 2809} 5. g4 exf4 {+4.60/6 30149
2307} 6. Kxf4 g5+ {+4.75/6 1719 1199} 7. Ke3 Ke5 {+5.33/5 7747 1812} 8. d4+ Ke6
{+7.00/5 16568 1840} 9. Kd3 b5 {+6.59/5 21093 2771} 10. c4 b4 {+3.96/6 11942
1300} 11. a3 bxa3 {+2.28/7 7777 1157} 12. bxa3 a6 {+2.33/7 12065 2134} 13. d5+
Ke5 {+5.81/1 10 4512} 14. Ke3 a5 {+6.32/10 217 3571} 15. a4 h6 {+8.71/9 8812
2865} 16. h3 Kf6 {+13.15/8 10248 3983} 17. Kd4 Ke7 {+18.24/8 37773 10917} 18. e5
Kd7 {+21.32/7 25859 10172} 19. exd6 Kxd6 {+13.83/8 47413 8269} 20. c5+ Kd7
{+16.02/7 13430 6440} 21. Ke5 Ke7 {+15.93/7 15218 5167} 22. c6 Kd8 {+12.54/8
24788 6007} 23. d6 cxd6+ {+12.02/9 11384 2475} 24. Kxd6 Kc8 {+13.96/9 7183 2498}
25. c7 h5 {+14.17/9 4741 2415} 26. gxh5 g4 {+20.48/8 20267 4299} 27. hxg4 Kb7
{+11.24/1 10 502} 28. Kd7 Kb6 {+14.53/6 11063 1366} 29. c8=Q Ka7 {M-4/1 10 273}
30. Qc5+ Kb7 {M-3/1 25 144} 31. Qb5+ Ka7 {M-2/1 11 9} 32. Kc6 Ka8 {M-1/1 11 3}
33. Qb7# 1-0
[/pgn]
The next game is against Stockfish, taking the g7 pawn.
Greetings.
Now, the game against Lc0, taking the f7 pawn.
A win for me.
Lc0 took what I think is the best defensive setup: three pawn islands, the pawn majority in the center island.
I had to make a few precise moves. When I made 13. d5, I had to be completely sure that I kept at least the same amount of reserve tempi as Lc0. Not very difficult in this particular position, but in general there is always room for some subtleties.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.11.21"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Lc0 v0.27.0"]
[Result "1-0"]
[BlackElo "3500"]
[Time "21:53:16"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppp1pp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. f4 Kf7 {+4.51/4 60553 4295} 2. Kf2 Kf6 {+5.00/4 26751 2201} 3. Kf3 e5
{+5.97/4 32020 2849} 4. e4 d6 {+5.83/5 31660 2809} 5. g4 exf4 {+4.60/6 30149
2307} 6. Kxf4 g5+ {+4.75/6 1719 1199} 7. Ke3 Ke5 {+5.33/5 7747 1812} 8. d4+ Ke6
{+7.00/5 16568 1840} 9. Kd3 b5 {+6.59/5 21093 2771} 10. c4 b4 {+3.96/6 11942
1300} 11. a3 bxa3 {+2.28/7 7777 1157} 12. bxa3 a6 {+2.33/7 12065 2134} 13. d5+
Ke5 {+5.81/1 10 4512} 14. Ke3 a5 {+6.32/10 217 3571} 15. a4 h6 {+8.71/9 8812
2865} 16. h3 Kf6 {+13.15/8 10248 3983} 17. Kd4 Ke7 {+18.24/8 37773 10917} 18. e5
Kd7 {+21.32/7 25859 10172} 19. exd6 Kxd6 {+13.83/8 47413 8269} 20. c5+ Kd7
{+16.02/7 13430 6440} 21. Ke5 Ke7 {+15.93/7 15218 5167} 22. c6 Kd8 {+12.54/8
24788 6007} 23. d6 cxd6+ {+12.02/9 11384 2475} 24. Kxd6 Kc8 {+13.96/9 7183 2498}
25. c7 h5 {+14.17/9 4741 2415} 26. gxh5 g4 {+20.48/8 20267 4299} 27. hxg4 Kb7
{+11.24/1 10 502} 28. Kd7 Kb6 {+14.53/6 11063 1366} 29. c8=Q Ka7 {M-4/1 10 273}
30. Qc5+ Kb7 {M-3/1 25 144} 31. Qb5+ Ka7 {M-2/1 11 9} 32. Kc6 Ka8 {M-1/1 11 3}
33. Qb7# 1-0
[/pgn]
The next game is against Stockfish, taking the g7 pawn.
Greetings.