Uri b4 is still a draw in this position

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Chessqueen
Posts: 5685
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Uri b4 is still a draw in this position

Post by Chessqueen »

Uri Blass wrote: Wed Jun 30, 2021 11:25 pm
Chessqueen wrote: Wed Jun 30, 2021 9:15 pm
Chessqueen wrote: Wed Jun 30, 2021 6:53 pm https://chess24.com/en/watch/live-tourn ... 2021/9/1/1
The blunder that helped the American born from Indian Parents to become the youngest GM in History, White should have played Kd5!, but blundered and played Ke5?

[d]8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1
White could win by b4 but I think Kd5 or Ke5 are draw.
The losing mistake of white is after Ke5 Nf3+ when gxf3 is bad.
I took the Black Pieces against Stockfish 13 and it is still a draw

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.07.02"]
[Round "?"]
[White "Stockfish_21052415_x64_bmi2"]
[Black "ChessQueen"]
[Result "1/2-1/2"]
[BlackElo "2000"]
[Time "13:33:52"]
[WhiteElo "3500"]
[TimeControl "300+3"]
[SetUp "1"]
[FEN "8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "40"]
[WhiteType "program"]
[BlackType "human"]

1. b4 Nc4+ 2. Ke6 Nxe3 3. Bxe3 Kxe3 4. b5 Kf2 5. b6 e3 6. b7 e2 7. b8=Q
e1=Q+ 8. Kf6 Kxg2 9. Kxg6 h4 10. Kh5 Qe4 11. Qb3 Qh7+ 12. Kg4 Qe4+ 13. Kg5
Qe5+ 14. Kxh4 Qd4+ 15. Kh5 Qe5+ 16. Kh6 Qf6+ 17. Kh7 Kf2 18. Qc2+ Kg3 19.
Qg6+ Qxg6+ 20. Kxg6 Kxh3 {Insufficient material} 1/2-1/2[/pgn]
Uri Blass
Posts: 11150
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Uri b4 is still a draw in this position

Post by Uri Blass »

Chessqueen wrote: Fri Jul 02, 2021 8:46 pm
Uri Blass wrote: Wed Jun 30, 2021 11:25 pm
Chessqueen wrote: Wed Jun 30, 2021 9:15 pm
Chessqueen wrote: Wed Jun 30, 2021 6:53 pm https://chess24.com/en/watch/live-tourn ... 2021/9/1/1
The blunder that helped the American born from Indian Parents to become the youngest GM in History, White should have played Kd5!, but blundered and played Ke5?

[d]8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1
White could win by b4 but I think Kd5 or Ke5 are draw.
The losing mistake of white is after Ke5 Nf3+ when gxf3 is bad.
I took the Black Pieces against Stockfish 13 and it is still a draw

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.07.02"]
[Round "?"]
[White "Stockfish_21052415_x64_bmi2"]
[Black "ChessQueen"]
[Result "1/2-1/2"]
[BlackElo "2000"]
[Time "13:33:52"]
[WhiteElo "3500"]
[TimeControl "300+3"]
[SetUp "1"]
[FEN "8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "40"]
[WhiteType "program"]
[BlackType "human"]

1. b4 Nc4+ 2. Ke6 Nxe3 3. Bxe3 Kxe3 4. b5 Kf2 5. b6 e3 6. b7 e2 7. b8=Q
e1=Q+ 8. Kf6 Kxg2 9. Kxg6 h4 10. Kh5 Qe4 11. Qb3 Qh7+ 12. Kg4 Qe4+ 13. Kg5
Qe5+ 14. Kxh4 Qd4+ 15. Kh5 Qe5+ 16. Kh6 Qf6+ 17. Kh7 Kf2 18. Qc2+ Kg3 19.
Qg6+ Qxg6+ 20. Kxg6 Kxh3 {Insufficient material} 1/2-1/2[/pgn]
I do not understand 3.Bxe3
My stockfish suggest 3.b5
Chessqueen
Posts: 5685
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: Uri b4 is still a draw in this position

Post by Chessqueen »

Uri Blass wrote: Fri Jul 02, 2021 10:14 pm
Chessqueen wrote: Fri Jul 02, 2021 8:46 pm
Uri Blass wrote: Wed Jun 30, 2021 11:25 pm
Chessqueen wrote: Wed Jun 30, 2021 9:15 pm
Chessqueen wrote: Wed Jun 30, 2021 6:53 pm https://chess24.com/en/watch/live-tourn ... 2021/9/1/1
The blunder that helped the American born from Indian Parents to become the youngest GM in History, White should have played Kd5!, but blundered and played Ke5?

[d]8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1
White could win by b4 but I think Kd5 or Ke5 are draw.
The losing mistake of white is after Ke5 Nf3+ when gxf3 is bad.
I took the Black Pieces against Stockfish 13 and it is still a draw

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.07.02"]
[Round "?"]
[White "Stockfish_21052415_x64_bmi2"]
[Black "ChessQueen"]
[Result "1/2-1/2"]
[BlackElo "2000"]
[Time "13:33:52"]
[WhiteElo "3500"]
[TimeControl "300+3"]
[SetUp "1"]
[FEN "8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "40"]
[WhiteType "program"]
[BlackType "human"]

1. b4 Nc4+ 2. Ke6 Nxe3 3. Bxe3 Kxe3 4. b5 Kf2 5. b6 e3 6. b7 e2 7. b8=Q
e1=Q+ 8. Kf6 Kxg2 9. Kxg6 h4 10. Kh5 Qe4 11. Qb3 Qh7+ 12. Kg4 Qe4+ 13. Kg5
Qe5+ 14. Kxh4 Qd4+ 15. Kh5 Qe5+ 16. Kh6 Qf6+ 17. Kh7 Kf2 18. Qc2+ Kg3 19.
Qg6+ Qxg6+ 20. Kxg6 Kxh3 {Insufficient material} 1/2-1/2[/pgn]
I do not understand 3.Bxe3
My stockfish suggest 3.b5
I gave Stockfish 13 only 45 Seconds, and I gave myself 5 minutes, According to Bobby Fischer every game is won by the loser opponent blundering at least a move. :roll:

Note: Only a few of the oungest GMs have become World Champion so far :roll:

List of youngest grandmasters since 1950
Year Player Country Age
1950 David Bronstein Soviet Union 26 years
1952 Tigran Petrosian Soviet Union 23 years
1955 Boris Spassky Soviet Union 18 years
1958 Bobby Fischer United States 15 years, 6 months, 1 day
1991 Judit Polgár Hungary 15 years, 4 months, 28 days
1994 Péter Lékó Hungary 14 years, 4 months, 22 days
1997 Étienne Bacrot France 14 years, 2 months, 0 days
1997 Ruslan Ponomariov Ukraine 14 years, 0 months, 17 days
1999 Bu Xiangzhi China 13 years, 10 months, 13 days
2002 Sergey Karjakin Ukraine 12 years, 7 months, 0 days
2021 Abhimanyu Mishra United States 12 years, 4 months, 25 days
ernest
Posts: 2053
Joined: Wed Mar 08, 2006 8:30 pm

Re: Uri b4 is still a draw in this position

Post by ernest »

My Stockfish 13 (SmallFish on iPad) plays 3. b5 and wins...
Chessqueen
Posts: 5685
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: Uri b4 is still a draw in this position

Post by Chessqueen »

Uri Blass wrote: Fri Jul 02, 2021 10:14 pm
Chessqueen wrote: Fri Jul 02, 2021 8:46 pm
Uri Blass wrote: Wed Jun 30, 2021 11:25 pm
Chessqueen wrote: Wed Jun 30, 2021 9:15 pm
Chessqueen wrote: Wed Jun 30, 2021 6:53 pm https://chess24.com/en/watch/live-tourn ... 2021/9/1/1
The blunder that helped the American born from Indian Parents to become the youngest GM in History, White should have played Kd5!, but blundered and played Ke5?

[d]8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1
White could win by b4 but I think Kd5 or Ke5 are draw.
The losing mistake of white is after Ke5 Nf3+ when gxf3 is bad.
I took the Black Pieces against Stockfish 13 and it is still a draw

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.07.02"]
[Round "?"]
[White "Stockfish_21052415_x64_bmi2"]
[Black "ChessQueen"]
[Result "1/2-1/2"]
[BlackElo "2000"]
[Time "13:33:52"]
[WhiteElo "3500"]
[TimeControl "300+3"]
[SetUp "1"]
[FEN "8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "40"]
[WhiteType "program"]
[BlackType "human"]

1. b4 Nc4+ 2. Ke6 Nxe3 3. Bxe3 Kxe3 4. b5 Kf2 5. b6 e3 6. b7 e2 7. b8=Q
e1=Q+ 8. Kf6 Kxg2 9. Kxg6 h4 10. Kh5 Qe4 11. Qb3 Qh7+ 12. Kg4 Qe4+ 13. Kg5
Qe5+ 14. Kxh4 Qd4+ 15. Kh5 Qe5+ 16. Kh6 Qf6+ 17. Kh7 Kf2 18. Qc2+ Kg3 19.
Qg6+ Qxg6+ 20. Kxg6 Kxh3 {Insufficient material} 1/2-1/2[/pgn]
I do not understand 3.Bxe3
My stockfish suggest 3.b5
Even MinimalChessEngine rated around 2250 can win against Stockfish14

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.07.02"]
[Round "?"]
[White "MinimalChessEngine"]
[Black "Stockfish_14_x64_avx2"]
[Result "*"]
[BlackElo "3500"]
[Time "19:22:32"]
[WhiteElo "2250"]
[TimeControl "300+2"]
[SetUp "1"]
[FEN "8/8/3K2p1/6Bp/4p3/3kP2P/1P1n2P1/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "18"]
[WhiteType "program"]
[BlackType "program"]

1. b4 Kc4 2. Ke6 Kxb4 3. Kf7 Nc4 4. Kxg6 h4 5. Kf5 Kc5 6. Kxe4 Kd6 7. Bxh4
Ke6 8. Bg5 Nd6+ 9. Kf4 Nc4 {Black resigns} *[/pgn]