Strange ideas about play against too strong opponent

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Henk
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Joined: Mon May 27, 2013 10:31 am

Strange ideas about play against too strong opponent

Post by Henk »

Except from resigning immediately against an opponent which is much too strong I thought maybe it is a good idea to give a much lower value to the rooks. For the rooks only get active after move twenty and at that time your position is already hopeless. Another idea is not to check for promotions of your pawns.
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stegemma
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Re: Strange ideas about play against too strong opponent

Post by stegemma »

Henk wrote:Except from resigning immediately against an opponent which is much too strong I thought maybe it is a good idea to give a much lower value to the rooks. For the rooks only get active after move twenty and at that time your position is already hopeless. Another idea is not to check for promotions of your pawns.
And maybe increase the value for pawns still in its initial rank. Your opponent needs more moves if you keep your army far from him/she :)
Author of Drago, Raffaela, Freccia, Satana, Sabrina.
http://www.linformatica.com
Henk
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Joined: Mon May 27, 2013 10:31 am

Re: Strange ideas about play against too strong opponent

Post by Henk »

Other ideas are of course to increase the weight of your own king safety and double or triple thinking time for first twenty moves.
Henk
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Re: Strange ideas about play against too strong opponent

Post by Henk »

Changing value of my rooks does not seem to work. In this game blacks rook values are set 0.25 times their normal value. So their values are a bit more than a pawn.

[pgn]
[Event "Computer Chess Game"]
[Site "HP"]
[Date "2015.08.20"]
[Round "-"]
[White "Stockfish 6 64"]
[Black "SkipperWinb"]
[Result "1-0"]
[TimeControl "300"]
[Annotator "1. +0.20 1... -6.96"]

1. e4 {+0.20/20} a6 {-6.96/7 6} 2. d4 {+0.54/20 5} c6 {-6.98/6 6} 3. Nc3
{+0.74/19 6} Qa5 {-6.98/6 6} 4. Bd2 {+1.06/18 8} Qb6 {-6.95/7 6} 5. Nf3
{+1.24/18 4} d6 {-7.37/7 6} 6. Bc4 {+1.11/18 6} Qxb2 {-7.38/7 5} 7. Na4
{+4.83/19 6} Qa3 {-7.87/8 5} 8. Nb6 {+4.99/20 8} Bg4 {-8.27/8 5} 9. Bxf7+
{+9.32/21 4} Kxf7 {-8.89/9 5} 10. Ng5+ {+99.77/30 4} Kg6 {-8.94/8 5} 11.
Qxg4 {+99.81/32 2.8} Qa5 {-18.21/7 5} 12. Bxa5 {+99.89/38 4} Nh6
{-18.59/8 5} 13. Qe6+ {+99.91/55 2.8} Kxg5 {-17.83/8 5} 14. h4+
{+99.93/127 3} Kh5 {-999.99/8 5} 15. g4+ {+99.95/127 0.2} Nxg4
{-999.99/8 5} 16. Qf5+ {+99.97/127 0.2} g5 {-999.99/9 5} 17. Qxg5#
{+99.99/127 0.2}
{Xboard adjudication: Checkmate} 1-0
[/pgn]
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stegemma
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Full name: Stefano Gemma

Re: Strange ideas about play against too strong opponent

Post by stegemma »

Henk wrote:Changing value of my rooks does not seem to work. In this game blacks rook values are set 0.25 times their normal value. So their values are a bit more than a pawn.[...]
The problem is the same of my (weak) softwares: the sooner exit of the queen.

Try to give a bonus for pieces near to their king and avoid pawn pushes, as said before. maybe you can reach move 20.
Author of Drago, Raffaela, Freccia, Satana, Sabrina.
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Henk
Posts: 7216
Joined: Mon May 27, 2013 10:31 am

Re: Strange ideas about play against too strong opponent

Post by Henk »

Setting rook value to zero does better for in this game white exchanges its bishop for a worthless rook.

[pgn]
[Event "Computer Chess Game"]
[Site "HP"]
[Date "2015.08.20"]
[Round "-"]
[White "Stockfish 6 64"]
[Black "SkipperWinb"]
[Result "1-0"]
[TimeControl "300"]
[Annotator "1. +0.22 1... -9.43"]

1. e4 {+0.22/21} a5 {-9.43/8 6} 2. Nf3 {+0.65/19 6} Ra6 {-9.09/8 6} 3. Bxa6
{+2.14/20 5} bxa6 {-6.96/8 6} 4. O-O {+2.48/19 4} d5 {-6.91/7 6} 5. exd5
{+2.66/21 7} Qxd5 {-6.91/7 6} 6. d4 {+2.66/21 2.9} e6 {-6.93/6 5} 7. Bf4
{+2.70/21 6} Qb7 {-6.91/7 5} 8. c4 {+2.69/20 4} Qxb2 {-6.91/8 5} 9. Nbd2
{+3.76/21 6} Nc6 {-6.90/7 5} 10. d5 {+5.24/20 5} exd5 {-6.92/8 5} 11. cxd5
{+6.54/18 4} Nce7 {-6.91/8 5} 12. Bxc7 {+8.15/19 4} Nxd5 {-6.92/8 5} 13.
Re1+ {+8.87/22 5} Be6 {-6.91/8 5} 14. Rb1 {+9.00/23 4} Qxa2 {-6.86/8 5} 15.
Rb8+ {+99.77/23 4} Kd7 {-6.84/8 5} 16. Qc1 {+99.81/28 5} Nxc7 {-9.00/7 5}
17. Ne5+ {+99.87/28 2.9} Kd6 {-9.06/7 4} 18. Rd8+ {+99.91/40 3} Bd7
{-10.34/7 4} 19. Qc6+ {+99.93/88 3} Ke7 {-999.99/8 4} 20. Rxd7+
{+99.95/127 0.3} Ke8 {-999.99/8 4} 21. Rxc7+ {+99.97/127 0.2} Kd8
{-999.99/9 5} 22. Qd7# {+99.99/127 0.2}
{Xboard adjudication: Checkmate} 1-0
[/pgn]
Henk
Posts: 7216
Joined: Mon May 27, 2013 10:31 am

Re: Strange ideas about play against too strong opponent

Post by Henk »

stegemma wrote:
Henk wrote:Changing value of my rooks does not seem to work. In this game blacks rook values are set 0.25 times their normal value. So their values are a bit more than a pawn.[...]
The problem is the same of my (weak) softwares: the sooner exit of the queen.

Try to give a bonus for pieces near to their king and avoid pawn pushes, as said before. maybe you can reach move 20.
ok queen is the problem.
Henk
Posts: 7216
Joined: Mon May 27, 2013 10:31 am

Re: Strange ideas about play against too strong opponent

Post by Henk »

Yes a record 44 moves. Skipper just did not count white's pawns and blacks rooks. Shame on Stockfish. ELO difference at least 1200 points.

[pgn]
[Event "Computer Chess Game"]
[Site "HP"]
[Date "2015.08.20"]
[Round "-"]
[White "Stockfish 6 64"]
[Black "SkipperWinb"]
[Result "1-0"]
[TimeControl "300"]
[Annotator "1. +0.20 1... -4.08"]

1. e4 {+0.20/20} Nh6 {-4.08/7 6} 2. Nc3 {+0.87/20 7} a5 {-4.08/7 6} 3. Nf3
{+1.20/20 5} Ra6 {-4.09/8 6} 4. Bxa6 {+2.58/19 5} bxa6 {-1.45/8 6} 5. d4
{+2.88/19 4} d6 {-1.05/7 6} 6. O-O {+2.81/18 5} Qd7 {-1.05/7 5} 7. Qe2
{+3.27/20 20} Bb7 {-1.45/7 5} 8. Re1 {+3.17/19 15} Bc8 {-1.39/7 5} 9. h3
{+3.57/19 10} Nc6 {-1.76/7 5} 10. Bg5 {+3.53/19 5} Ng8 {-1.04/7 5} 11. Rad1
{+3.54/20 4} Na7 {-1.04/7 5} 12. d5 {+4.07/20 4} f6 {-1.77/8 5} 13. Be3
{+4.42/19 4} c5 {-1.77/7 5} 14. e5 {+4.65/23 3} fxe5 {-1.40/7 5} 15. Nxe5
{+4.51/22 4} dxe5 {-0.33/8 5} 16. Qh5+ {+4.76/21 4} Kd8 {-0.58/7 5} 17.
Bxc5 {+5.92/24 4} Qb7 {-1.30/7 4} 18. d6 {+6.06/25 6} exd6 {-1.69/7 4} 19.
Bxd6 {+8.02/23 4} Bd7 {-2.40/7 4} 20. Bxf8 {+11.64/24 6} Nf6 {-2.35/8 4}
21. Qf7 {+12.03/25 5} Rxf8 {-2.35/8 5} 22. Qxf8+ {+13.22/23 5} Kc7
{-3.43/8 5} 23. Qxg7 {+13.48/24 4} Qc6 {-4.20/8 5} 24. Qxf6 {+13.76/25 7}
Qxf6 {-4.21/8 5} 25. Nd5+ {+13.88/23 4} Kb8 {-4.10/8 5} 26. Nxf6
{+14.24/22 6} Bb5 {-4.83/8 5} 27. Rxe5 {+15.02/21 4} h6 {-4.82/7 5} 28. Rh5
{+15.72/20 3} Be2 {-4.84/8 5} 29. Rd8+ {+49.95/24 4} Kc7 {-4.84/8 4} 30.
Rd7+ {+52.27/28 5} Kb8 {-5.67/8 4} 31. Rxh6 {+53.43/29 5} Nc8 {-5.68/8 5}
32. Rd8 {+58.10/29 3} Bc4 {-7.82/8 4} 33. Nd7+ {+99.57/29 4} Kc7
{-7.05/9 4} 34. Rxc8+ {+99.67/29 5} Kxc8 {-7.07/9 4} 35. Nb6+ {+99.69/26 3}
Kb7 {-7.08/9 4} 36. Nxc4 {+99.79/25 2.9} a4 {-7.08/8 4} 37. g4
{+99.81/25 4} Ka7 {-7.94/8 4} 38. g5 {+99.87/26 2.3} Kb7 {-15.53/8 4} 39.
g6 {+99.89/30 2.8} a3 {-17.35/9 4} 40. g7 {+99.91/49 1.7} axb2
{-999.99/10 3} 41. Nxb2 {+99.93/127 0.8} Ka7 {-999.99/9 2.4} 42. g8=Q
{+99.95/127 0.3} Kb7 {-999.99/8 2.4} 43. Qf7+ {+99.97/127 0.3} Kc8
{-999.99/8 3} 44. Rh8# {+99.99/127 0.2}
{Xboard adjudication: Checkmate} 1-0
[/pgn]