Hi.
Now, the game against Berserk, taking the g7 pawn.
A win for me.
I do not understand why Berserk played 9... Kg7, to me 9... fg4 looks much better.
I had to find the good move 22. Kc3 to win, but it was not really difficult (Black is actually threatening b4).
Oh, from Berserk's evaluation I see now that my 21. Kd4 is quite inaccurate. 21. Kb4 is better (during the game, I did not see that I could attack the a4 pawn this way). Fortunately, it took only a few extra moves to win the a4 pawn anyway.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.12.29"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Berserk 9"]
[Result "1-0"]
[Time "20:43:35"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/pppppp1p/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. g4 f6 {+2.69/22 68815 56329550} 2. f4 e6 {+2.42/22 62592 59660859} 3. Kf2 Kf7
{+2.63/22 36548 44145344} 4. Kg3 Kg6 {+2.68/22 54358 61483915} 5. e4 b6
{+2.78/23 73326 80470446} 6. h4 f5 {+2.44/21 21235 18651867} 7. h5+ Kh6
{+3.78/22 76534 72844095} 8. exf5 exf5 {+4.24/20 12904 28434432} 9. Kh4 Kg7
{+4.26/21 80761 80170579} 10. g5 c6 {+5.53/22 138339 129511791} 11. Kg3 Kf7
{+5.57/21 42855 45086800} 12. Kf3 a5 {+5.96/21 15201 19691143} 13. Ke3 Kg8
{+6.77/20 16526 16573759} 14. Kd4 d6 {+8.41/19 8166 15217404} 15. b3 Kf7
{+7.86/19 23868 23766010} 16. a3 h6 {+6.89/18 13480 11833217} 17. g6+ Ke6
{+6.97/16 2787 2942812} 18. b4 a4 {+16.99/18 16276 17162969} 19. Kc4 Ke7
{+10.91/16 10 5009102} 20. b5 d5+ {+17.73/18 10 13672891} 21. Kd4 cxb5 {+3.61/19
23528 25754215} 22. Kc3 Kf6 {+32.88/19 16400 18140323} 23. Kb4 d4 {+39.78/16 10
7246266} 24. Kxb5 Ke7 {+27.72/18 10 15924031} 25. Kxb6 Kd6 {+21.22/17 8409
14566299} 26. Kb5 Kd5 {+29.51/17 10205 11363193} 27. g7 Ke4 {+25.01/17 345
3542188} 28. g8=Q Kf3 {+274.07/19 7285 12604042} 29. Kxa4 Ke2 {+274.12/19 14897
17447360} 30. Kb3 Kxd2 {+273.05/17 8765 10120297} 31. Qe6 Kd1 {M-5/61 5295
30380273} 32. a4 Kd2 {M-5/39 3375 4310262} 33. a5 Kd1 {M-5/43 4166 5381196} 34.
a6 d3 {M-5/61 6071 7540920} 35. cxd3 Kd2 {M-4/82 4711 5615977} 36. a7 Kxd3
{M-3/127 4626 5223443} 37. a8=Q Kd2 {M-2/127 10 159341} 38. Qad5+ Kc1 {M-1/127
10 64425} 39. Qe1# 1-0
[/pgn]
Next game is against Crafty, taking the h7 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 Crafty, taking the h7 pawn.
A win for me.
It was a nice game. Once I had a little open road for my king, I used my pawn majority to distract Crafty's king.
I think some of my moves were quite inaccurate (for example, I think I should have closed the queenside before advancing my passed f-pawn), but fortunately there were no negative consequences.
Oh, Crafty did resign. I will not worry about this issue any longer.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.12.30"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Crafty-25.3"]
[Result "1-0"]
[BlackElo "2600"]
[Time "19:24:35"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppppp1/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "resign"]
1. h4 f5 {-1.31/22 37487 87846714} 2. g3 e5 {-1.27/23 47006 124723626} 3. f3 Ke7
{-1.36/20 22296 68573371} 4. Kf2 f4 {-1.40/22 56693 173963745} 5. g4 Ke6
{-1.42/22 30301 61952363} 6. e3 d5 {-1.59/23 32690 112622767} 7. exf4 exf4
{-1.98/25 19175 64949814} 8. Ke2 c5 {-2.35/25 50144 172321102} 9. Kd3 Kd6
{-2.95/27 63248 186181296} 10. c4 Ke5 {-2.97/27 50306 165402071} 11. Kc3 d4+
{-4.00/28 61958 179325209} 12. Kd3 g6 {-4.49/29 25673 87045524} 13. b3 b6
{-5.48/28 25150 83613929} 14. h5 gxh5 {-6.63/31 42208 120239886} 15. gxh5 a6
{-8.13/32 12295 46502717} 16. h6 Kf6 {-12.59/32 22413 78202733} 17. Ke4 Kg6
{-13.22/31 13360 49813457} 18. Kxf4 Kxh6 {-11.79/29 18934 75872940} 19. Ke5 b5
{-12.83/29 37666 169877365} 20. f4 Kg7 {-14.77/29 27873 130110640} 21. Ke6 b4
{-16.66/28 41133 192946684} 22. f5 Kf8 {-17.62/29 11721 48670469} 23. d3 Ke8
{-17.37/29 12321 32018066} 24. Kd6 Kf7 {-327.31/28 12392 20582880} 25. Kxc5 Kf6
{-327.33/29 12094 65259737} 26. Kxd4 Kxf5 {-17.96/26 12144 47466454} 27. Kd5 Kf6
{-327.37/28 28808 97975107} 28. Kd6 Kf5 {-327.37/27 7482 25816782} 29. c5 Kf4
{-327.41/26 11023 26860793} 30. c6 Ke3 {-327.43/25 10670 42603746} 31. c7 a5
{-327.47/22 11360 44003928} 32. c8=Q Kd2 {-327.49/24 11212 49768348} 33. Ke5 Ke3
{-327.53/27 9609 24783784} 34. d4 Kf3 {-327.53/23 8805 46916573} 35. d5 a4
{-327.53/23 7483 33448813} 36. bxa4 Ke2 {-327.55/23 8659 31090020} 37. Ke4 Kd2
{-327.57/72 7412 22408413} 38. d6 b3 {-327.59/124 3263 10513490} 39. axb3 Ke2
{-327.61/124 323 992795} 40. Qc2+ 1-0
[/pgn]
Next game is against Komodo, taking the a pawn.
Greetings.
Now, the game against Crafty, taking the h7 pawn.
A win for me.
It was a nice game. Once I had a little open road for my king, I used my pawn majority to distract Crafty's king.
I think some of my moves were quite inaccurate (for example, I think I should have closed the queenside before advancing my passed f-pawn), but fortunately there were no negative consequences.
Oh, Crafty did resign. I will not worry about this issue any longer.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.12.30"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Crafty-25.3"]
[Result "1-0"]
[BlackElo "2600"]
[Time "19:24:35"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/ppppppp1/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "resign"]
1. h4 f5 {-1.31/22 37487 87846714} 2. g3 e5 {-1.27/23 47006 124723626} 3. f3 Ke7
{-1.36/20 22296 68573371} 4. Kf2 f4 {-1.40/22 56693 173963745} 5. g4 Ke6
{-1.42/22 30301 61952363} 6. e3 d5 {-1.59/23 32690 112622767} 7. exf4 exf4
{-1.98/25 19175 64949814} 8. Ke2 c5 {-2.35/25 50144 172321102} 9. Kd3 Kd6
{-2.95/27 63248 186181296} 10. c4 Ke5 {-2.97/27 50306 165402071} 11. Kc3 d4+
{-4.00/28 61958 179325209} 12. Kd3 g6 {-4.49/29 25673 87045524} 13. b3 b6
{-5.48/28 25150 83613929} 14. h5 gxh5 {-6.63/31 42208 120239886} 15. gxh5 a6
{-8.13/32 12295 46502717} 16. h6 Kf6 {-12.59/32 22413 78202733} 17. Ke4 Kg6
{-13.22/31 13360 49813457} 18. Kxf4 Kxh6 {-11.79/29 18934 75872940} 19. Ke5 b5
{-12.83/29 37666 169877365} 20. f4 Kg7 {-14.77/29 27873 130110640} 21. Ke6 b4
{-16.66/28 41133 192946684} 22. f5 Kf8 {-17.62/29 11721 48670469} 23. d3 Ke8
{-17.37/29 12321 32018066} 24. Kd6 Kf7 {-327.31/28 12392 20582880} 25. Kxc5 Kf6
{-327.33/29 12094 65259737} 26. Kxd4 Kxf5 {-17.96/26 12144 47466454} 27. Kd5 Kf6
{-327.37/28 28808 97975107} 28. Kd6 Kf5 {-327.37/27 7482 25816782} 29. c5 Kf4
{-327.41/26 11023 26860793} 30. c6 Ke3 {-327.43/25 10670 42603746} 31. c7 a5
{-327.47/22 11360 44003928} 32. c8=Q Kd2 {-327.49/24 11212 49768348} 33. Ke5 Ke3
{-327.53/27 9609 24783784} 34. d4 Kf3 {-327.53/23 8805 46916573} 35. d5 a4
{-327.53/23 7483 33448813} 36. bxa4 Ke2 {-327.55/23 8659 31090020} 37. Ke4 Kd2
{-327.57/72 7412 22408413} 38. d6 b3 {-327.59/124 3263 10513490} 39. axb3 Ke2
{-327.61/124 323 992795} 40. Qc2+ 1-0
[/pgn]
Next game is against Komodo, taking the a pawn.
Greetings.
-
Chessqueen
- Posts: 5685
- Joined: Wed Sep 05, 2018 2:16 am
- Location: Moving
- Full name: Jorge Picado
Re: Pawn endinge challenge: human vs engines.
You stated that for these type of pawn ending it does not matter much if the engine play White, but for this Near Year celebration please play against Stockfish with this position you will take the Black side this time.
[pgn]
[Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.25"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "Garcia Ruvalcaba"]
[Result "*"]
[BlackElo "2000"]
[Time "22:29:04"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "unterminated"]
[PlyCount "1"][/pgn]
[pgn]
[Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.25"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "Garcia Ruvalcaba"]
[Result "*"]
[BlackElo "2000"]
[Time "22:29:04"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "unterminated"]
[PlyCount "1"][/pgn]
-
Chessqueen
- Posts: 5685
- Joined: Wed Sep 05, 2018 2:16 am
- Location: Moving
- Full name: Jorge Picado
Re: Pawn endinge challenge: human vs engines.
I guess it is slightly harder to beat Stockfish playing the first move. I decided to play with the 1....a5 to see how Stockfish play against my Queen side advancement 
[pgn][Event "Pawn endings"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.31"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "ChessQueen"]
[Result "1/2-1/2"]
[BlackElo "?"]
[Time "09:20:37"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "adjudication"]
[PlyCount "49"]
[WhiteType "program"]
[BlackType "human"]
1. Kd2 a5 2. Kd3 b5 3. a4 c6 4. axb5 cxb5 5. c4 b4 6. c5 a4 7. Kc4 a3 8.
bxa3 bxa3 9. Kb3 h5 10. Kxa3 g5 11. Kb3 Kd8 12. Kb4 Kc7 13. h3 f5 14. Kc4
Kc6 15. Kd4 d6 16. cxd6 Kxd6 17. g3 e5+ 18. Kc4 Kc6 19. f3 f4 20. gxf4 exf4
21. Kc3 Kd5 22. Kd3 Ke5 23. Kc3 Ke6 24. Kd4 Kf5 25. Kd5 {User Adjudication}[/pgn]
[pgn][Event "Pawn endings"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.31"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "ChessQueen"]
[Result "1/2-1/2"]
[BlackElo "?"]
[Time "09:20:37"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "adjudication"]
[PlyCount "49"]
[WhiteType "program"]
[BlackType "human"]
1. Kd2 a5 2. Kd3 b5 3. a4 c6 4. axb5 cxb5 5. c4 b4 6. c5 a4 7. Kc4 a3 8.
bxa3 bxa3 9. Kb3 h5 10. Kxa3 g5 11. Kb3 Kd8 12. Kb4 Kc7 13. h3 f5 14. Kc4
Kc6 15. Kd4 d6 16. cxd6 Kxd6 17. g3 e5+ 18. Kc4 Kc6 19. f3 f4 20. gxf4 exf4
21. Kc3 Kd5 22. Kd3 Ke5 23. Kc3 Ke6 24. Kd4 Kf5 25. Kd5 {User Adjudication}[/pgn]
-
Chessqueen
- Posts: 5685
- Joined: Wed Sep 05, 2018 2:16 am
- Location: Moving
- Full name: Jorge Picado
Re: Pawn endinge challenge: human vs engines.
Next time playing the same position against Stockfish I will reply with 1.......d5 no matter how Stockfish open except if it open with 1.e4., and I will try much harder to beat Stockfish. I will post it as soon I I am done 
I will rest for 1 minute since I am winning by 6 minutes and my position is solid so far, going to the bathroom
[pgn][Event "Pawn Endings"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.31"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "ChessQueen"]
[Result "0-1"]
[BlackElo "?"]
[Time "15:18:19"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "time forfeit"]
[PlyCount "32"]
[WhiteType "program"]
[BlackType "human"]
1. Kd2 d5 2. f3 e5 3. e3 b5 4. Kd3 Kd7 5. h3 c5 6. Kd2 g5 7. Ke2 a5 8. Kd3
f5 9. Ke2 f4 10. e4 d4 11. a3 a4 12. Kd2 c4 13. Kd1 c3 14. bxc3 dxc3 15.
Kc1 Kc6 16. Kb1 Kc5 17. Kc1 Kd4 18. Kd1 Ke3 19. Kc1 Ke2 20. h4 gxh4 21. Kb1
{White resigns} *[/pgn]
I will rest for 1 minute since I am winning by 6 minutes and my position is solid so far, going to the bathroom
[pgn][Event "Pawn Endings"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.31"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "ChessQueen"]
[Result "0-1"]
[BlackElo "?"]
[Time "15:18:19"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "time forfeit"]
[PlyCount "32"]
[WhiteType "program"]
[BlackType "human"]
1. Kd2 d5 2. f3 e5 3. e3 b5 4. Kd3 Kd7 5. h3 c5 6. Kd2 g5 7. Ke2 a5 8. Kd3
f5 9. Ke2 f4 10. e4 d4 11. a3 a4 12. Kd2 c4 13. Kd1 c3 14. bxc3 dxc3 15.
Kc1 Kc6 16. Kb1 Kc5 17. Kc1 Kd4 18. Kd1 Ke3 19. Kc1 Ke2 20. h4 gxh4 21. Kb1
{White resigns} *[/pgn]
-
pepechuy
- Posts: 226
- Joined: Fri Oct 22, 2021 4:22 am
- Full name: José García Ruvalcaba
Re: Pawn endinge challenge: human vs engines.
Hi.Chessqueen wrote: ↑Sat Dec 31, 2022 3:25 pm You stated that for these type of pawn ending it does not matter much if the engine play White, but for this Near Year celebration please play against Stockfish with this position you will take the Black side this time.
[pgn]
[Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.12.25"]
[Round "?"]
[White "Stockfish-windows-2022-x86-64-avx2"]
[Black "Garcia Ruvalcaba"]
[Result "*"]
[BlackElo "2000"]
[Time "22:29:04"]
[WhiteElo "3650"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "4k3/pppppppp/8/8/8/8/PPP1PPPP/4K3 w - - 0 1"]
[Termination "unterminated"]
[PlyCount "1"][/pgn]
Tg, since it is new year... I played this game in Lichess, against Stockfish Level 8.
https://lichess.org/Fnr4RmmQ
On the server, Stockfish plays much faster.
About your move 1... a5, I think it is just inferior to 1... d5.
Always try to push first the "candidate" 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 a7 pawn.
A win for me.
I had my doubts about 14. a6, and considered also 14. ab6; I think both moves win rather easily, but in very different ways.
14. ab6 creates a passed pawn, and will eventually force Black's king back; then my king goes to the kingside and captures Black's pawns (while Black's king is distracted).
14. a6, my move, creates a protected passed pawn, tying up the Black king to it. Then my king is free to go to the kingside. Of course, if I am careless and make a big mistake, the kingside can become closed. But in this case, it is somewhat easy to "crack" black's pawn structure in the kingside, and get an entry path for my king.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2023.01.02"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Komodo 13.02 64-bit"]
[Result "1-0"]
[BlackElo "3500"]
[Time "21:37:21"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/1ppppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. a4 b6 {+2.33/24 79332 81251881} 2. b4 c6 {+2.36/24 46406 46428166} 3. c3 e6
{+2.38/24 55198 49484121} 4. d3 c5 {+2.32/25 17798 20736052} 5. Kd2 Kd8
{+2.35/26 27888 33064492} 6. d4 cxd4 {+3.17/26 59648 105541314} 7. cxd4 Kc7
{+3.38/25 45920 71636700} 8. Kc3 Kc6 {+3.51/23 72597 80068278} 9. Kc4 d5+
{+3.79/22 19297 26015046} 10. Kc3 Kc7 {+4.72/24 54261 57078599} 11. b5 Kb7
{+5.19/25 3331 25860622} 12. Kb4 Kc7 {+8.13/25 50473 55944387} 13. a5 Kb7
{+7.80/26 41208 65989100} 14. a6+ Kb8 {+7.86/24 21177 28350583} 15. Kc3 Ka7
{+9.75/27 62955 81075634} 16. Kd3 f5 {+11.67/27 39618 48516571} 17. Ke3 g5
{+16.90/26 26812 66135981} 18. Kf3 Kb8 {+17.28/24 22023 32965732} 19. Kg3 Kc7
{+16.41/24 32594 49425774} 20. h4 gxh4+ {+17.71/23 10904 16387376} 21. Kxh4 Kb8
{+20.61/24 10035 14993426} 22. Kg5 Kc7 {+20.73/24 10 4574441} 23. Kh6 f4
{+18.92/23 19589 28277343} 24. Kxh7 Kb8 {M-16/22 6992 10614526} 25. Kg6 Ka8
{M-12/28 10 4488547} 26. Kg5 Kb8 {M-12/24 1121 1684325} 27. Kxf4 Kc8 {M-10/26
1208 1921634} 28. g4 Kb8 {M-9/26 994 1631188} 29. g5 Kc7 {M-8/30 1167 2146588}
30. g6 Kd6 {M-7/35 1073 2389013} 31. g7 e5+ {M-6/83 10 8178095} 32. dxe5+ Kc5
{M-6/32 1255 2579229} 33. g8=Q Kb4 {M-5/99 10 9563739} 34. Qxd5 Ka3 {M-4/99 10
139124} 35. a7 Kb2 {M-3/99 10 12921} 36. a8=Q Kc1 {M-2/99 10 5231} 37. Qa1+ Kc2
{M-1/99 10 197} 38. Qd3# 1-0
[/pgn]
Next game is against Lc0, taking the b7 pawn.
Greetings.
Now, the game against Komodo, taking the a7 pawn.
A win for me.
I had my doubts about 14. a6, and considered also 14. ab6; I think both moves win rather easily, but in very different ways.
14. ab6 creates a passed pawn, and will eventually force Black's king back; then my king goes to the kingside and captures Black's pawns (while Black's king is distracted).
14. a6, my move, creates a protected passed pawn, tying up the Black king to it. Then my king is free to go to the kingside. Of course, if I am careless and make a big mistake, the kingside can become closed. But in this case, it is somewhat easy to "crack" black's pawn structure in the kingside, and get an entry path for my king.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2023.01.02"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Komodo 13.02 64-bit"]
[Result "1-0"]
[BlackElo "3500"]
[Time "21:37:21"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/1ppppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. a4 b6 {+2.33/24 79332 81251881} 2. b4 c6 {+2.36/24 46406 46428166} 3. c3 e6
{+2.38/24 55198 49484121} 4. d3 c5 {+2.32/25 17798 20736052} 5. Kd2 Kd8
{+2.35/26 27888 33064492} 6. d4 cxd4 {+3.17/26 59648 105541314} 7. cxd4 Kc7
{+3.38/25 45920 71636700} 8. Kc3 Kc6 {+3.51/23 72597 80068278} 9. Kc4 d5+
{+3.79/22 19297 26015046} 10. Kc3 Kc7 {+4.72/24 54261 57078599} 11. b5 Kb7
{+5.19/25 3331 25860622} 12. Kb4 Kc7 {+8.13/25 50473 55944387} 13. a5 Kb7
{+7.80/26 41208 65989100} 14. a6+ Kb8 {+7.86/24 21177 28350583} 15. Kc3 Ka7
{+9.75/27 62955 81075634} 16. Kd3 f5 {+11.67/27 39618 48516571} 17. Ke3 g5
{+16.90/26 26812 66135981} 18. Kf3 Kb8 {+17.28/24 22023 32965732} 19. Kg3 Kc7
{+16.41/24 32594 49425774} 20. h4 gxh4+ {+17.71/23 10904 16387376} 21. Kxh4 Kb8
{+20.61/24 10035 14993426} 22. Kg5 Kc7 {+20.73/24 10 4574441} 23. Kh6 f4
{+18.92/23 19589 28277343} 24. Kxh7 Kb8 {M-16/22 6992 10614526} 25. Kg6 Ka8
{M-12/28 10 4488547} 26. Kg5 Kb8 {M-12/24 1121 1684325} 27. Kxf4 Kc8 {M-10/26
1208 1921634} 28. g4 Kb8 {M-9/26 994 1631188} 29. g5 Kc7 {M-8/30 1167 2146588}
30. g6 Kd6 {M-7/35 1073 2389013} 31. g7 e5+ {M-6/83 10 8178095} 32. dxe5+ Kc5
{M-6/32 1255 2579229} 33. g8=Q Kb4 {M-5/99 10 9563739} 34. Qxd5 Ka3 {M-4/99 10
139124} 35. a7 Kb2 {M-3/99 10 12921} 36. a8=Q Kc1 {M-2/99 10 5231} 37. Qa1+ Kc2
{M-1/99 10 197} 38. Qd3# 1-0
[/pgn]
Next game is against Lc0, 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 Lc0, taking the b7 pawn.
A win for me.
I do not understand why I did not play 8. b5 (I played 9. b5, same pawn push a move later). Not much was lost, just a tempo... but in another position, a tempo can be critical!
After that, I had to find a road for my king into the kingside. One has just to be very careful: just one misstep, and all paths can close.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2023.01.03"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Lc0 v0.27.0"]
[Result "1-0"]
[BlackElo "3500"]
[Time "17:06:56"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/p1pppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. b4 d5 {+4.69/5 58098 4553} 2. c3 Kd7 {+4.20/5 23529 1833} 3. d3 Kc6 {+4.00/5
23535 1935} 4. c4 Kb6 {+4.30/5 17554 2189} 5. Kd2 dxc4 {+5.05/6 16880 1816} 6.
dxc4 c5 {+5.97/5 16643 2143} 7. a3 a5 {+7.06/4 22494 2303} 8. Kc3 g5 {+7.64/5
53400 5565} 9. b5 a4 {+13.10/5 22563 2167} 10. Kd3 f5 {+12.21/5 7222 1835} 11.
Ke3 h5 {+11.40/5 35060 2663} 12. Kf3 e5 {+5.24/5 13248 1084} 13. Kg3 Kb7
{+5.63/6 8845 2653} 14. h4 g4 {+4.91/9 13282 1811} 15. e3 Kc7 {+2.79/8 42233
16205} 16. f3 Kd7 {+4.17/10 26746 40688} 17. fxg4 fxg4 {+4.66/10 21278 10725}
18. Kf2 Kc7 {+8.35/10 43619 80793} 19. Ke2 e4 {+10.75/10 12331 26319} 20. Kf2
Kd6 {+17.97/9 22679 31127} 21. Kg3 Ke5 {+26.11/9 9951 13330} 22. b6 Kd6
{+39.71/9 1241 8057} 23. Kf4 Kc6 {+46.44/7 12491 9642} 24. Kxe4 Kxb6 {+39.89/7
30620 6914} 25. Kd5 Kc7 {+46.95/6 14263 6785} 26. Kxc5 Kd7 {+40.44/6 30423 8262}
27. Kb6 Ke6 {+35.31/6 25411 7059} 28. c5 Ke5 {+30.77/6 51582 14215} 29. c6 Ke4
{+71.35/6 10157 4468} 30. c7 Kxe3 {+62.08/5 18527 2834} 31. c8=Q Kf4 {+35.09/4
18811 2683} 32. Qc3 Ke4 {+52.47/5 15624 2130} 33. g3 Kd5 {+21.27/5 13620 1776}
34. Qe3 Kc4 {+5.71/1 22 191} 35. Ka5 Kd5 {+22.20/1 23 52} 36. Kb5 Kd6 {+18.19/1
19 119} 37. Qe4 Kc7 {+41.44/5 3403 362} 38. Qe7+ Kb8 {M-3/1 11 71} 39. Kc6 Ka8
{M-1/1 10 33} 40. Qb7# 1-0
[/pgn]
Next game is against Stockfish, taking the c7 pawn.
Greetings.
Now, the game against Lc0, taking the b7 pawn.
A win for me.
I do not understand why I did not play 8. b5 (I played 9. b5, same pawn push a move later). Not much was lost, just a tempo... but in another position, a tempo can be critical!
After that, I had to find a road for my king into the kingside. One has just to be very careful: just one misstep, and all paths can close.
[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2023.01.03"]
[Round "*"]
[White "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Black "Lc0 v0.27.0"]
[Result "1-0"]
[BlackElo "3500"]
[Time "17:06:56"]
[TimeControl "600+10"]
[SetUp "1"]
[FEN "4k3/p1pppppp/8/8/8/8/PPPPPPPP/4K3 w - - 0 1"]
[Termination "mate"]
1. b4 d5 {+4.69/5 58098 4553} 2. c3 Kd7 {+4.20/5 23529 1833} 3. d3 Kc6 {+4.00/5
23535 1935} 4. c4 Kb6 {+4.30/5 17554 2189} 5. Kd2 dxc4 {+5.05/6 16880 1816} 6.
dxc4 c5 {+5.97/5 16643 2143} 7. a3 a5 {+7.06/4 22494 2303} 8. Kc3 g5 {+7.64/5
53400 5565} 9. b5 a4 {+13.10/5 22563 2167} 10. Kd3 f5 {+12.21/5 7222 1835} 11.
Ke3 h5 {+11.40/5 35060 2663} 12. Kf3 e5 {+5.24/5 13248 1084} 13. Kg3 Kb7
{+5.63/6 8845 2653} 14. h4 g4 {+4.91/9 13282 1811} 15. e3 Kc7 {+2.79/8 42233
16205} 16. f3 Kd7 {+4.17/10 26746 40688} 17. fxg4 fxg4 {+4.66/10 21278 10725}
18. Kf2 Kc7 {+8.35/10 43619 80793} 19. Ke2 e4 {+10.75/10 12331 26319} 20. Kf2
Kd6 {+17.97/9 22679 31127} 21. Kg3 Ke5 {+26.11/9 9951 13330} 22. b6 Kd6
{+39.71/9 1241 8057} 23. Kf4 Kc6 {+46.44/7 12491 9642} 24. Kxe4 Kxb6 {+39.89/7
30620 6914} 25. Kd5 Kc7 {+46.95/6 14263 6785} 26. Kxc5 Kd7 {+40.44/6 30423 8262}
27. Kb6 Ke6 {+35.31/6 25411 7059} 28. c5 Ke5 {+30.77/6 51582 14215} 29. c6 Ke4
{+71.35/6 10157 4468} 30. c7 Kxe3 {+62.08/5 18527 2834} 31. c8=Q Kf4 {+35.09/4
18811 2683} 32. Qc3 Ke4 {+52.47/5 15624 2130} 33. g3 Kd5 {+21.27/5 13620 1776}
34. Qe3 Kc4 {+5.71/1 22 191} 35. Ka5 Kd5 {+22.20/1 23 52} 36. Kb5 Kd6 {+18.19/1
19 119} 37. Qe4 Kc7 {+41.44/5 3403 362} 38. Qe7+ Kb8 {M-3/1 11 71} 39. Kc6 Ka8
{M-1/1 10 33} 40. Qb7# 1-0
[/pgn]
Next game is against Stockfish, taking the c7 pawn.
Greetings.
-
Chessqueen
- Posts: 5685
- Joined: Wed Sep 05, 2018 2:16 am
- Location: Moving
- Full name: Jorge Picado
Re: Pawn endinge challenge: human vs engines.
You probably will never see one of those positions that you have posted so far from real chess games, but Frank was correct it is better to practice positions from this book and try to convert those position into winning endgame.
Note: Also there are good lessons on youtube, such as this By GM Alex Lenderman
Note: Also there are good lessons on youtube, such as this By GM Alex Lenderman
-
Chessqueen
- Posts: 5685
- Joined: Wed Sep 05, 2018 2:16 am
- Location: Moving
- Full name: Jorge Picado
Re: Pawn endinge challenge: human vs engines.
This is an interesting position play it versus Stockfish or Dragon, white to move and win
[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2023.01.04"]
[Round "?"]
[White "Pichardos"]
[Black "Dragon-2.6.1-64bit-avx2"]
[Result "*"]
[BlackElo "3600"]
[Time "10:24:04"]
[WhiteElo "?"]
[TimeControl "360+10"]
[SetUp "1"]
[FEN "3r4/3k4/1p6/p4p2/2P1p1p1/PP2P3/4KPP1/2R5 w - - 1 1"]
[Termination "unterminated"]
[PlyCount "0"]
[WhiteType "human"]
[BlackType "program"]
*[/pgn]
[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2023.01.04"]
[Round "?"]
[White "Pichardos"]
[Black "Dragon-2.6.1-64bit-avx2"]
[Result "*"]
[BlackElo "3600"]
[Time "10:24:04"]
[WhiteElo "?"]
[TimeControl "360+10"]
[SetUp "1"]
[FEN "3r4/3k4/1p6/p4p2/2P1p1p1/PP2P3/4KPP1/2R5 w - - 1 1"]
[Termination "unterminated"]
[PlyCount "0"]
[WhiteType "human"]
[BlackType "program"]
*[/pgn]