Engines or Settings for playing down in material?

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

titanD
Posts: 94
Joined: Sun Jun 29, 2014 5:41 pm

Engines or Settings for playing down in material?

Post by titanD »

Are there any engines that excel at this or settings you can use on an engine that facilitate this.

I guess you could use one of those engines that lets you specify contempt for draw or some heuristics that correlate with having lots of pieces on the board. But I know nothing about any of this and just notice that I can beat any engine at 15+0 a knight up.

I don't think this should be possible, I'm not a master. The engine picks lots of stupid moves that simplify the position.
John Conway
Posts: 161
Joined: Wed Jul 11, 2007 1:44 pm

Re: Engines or Settings for playing down in material?

Post by John Conway »

You must be stronger than GM Michael Adams or your engines are weaker than Hydra was in 2005.
http://en.chessbase.com/post/adams-vs-h ... achine-5-5
Ferdy
Posts: 4833
Joined: Sun Aug 10, 2008 3:15 pm
Location: Philippines

Re: Engines or Settings for playing down in material?

Post by Ferdy »

titanD wrote:Are there any engines that excel at this or settings you can use on an engine that facilitate this.

I guess you could use one of those engines that lets you specify contempt for draw or some heuristics that correlate with having lots of pieces on the board. But I know nothing about any of this and just notice that I can beat any engine at 15+0 a knight up.

I don't think this should be possible, I'm not a master. The engine picks lots of stupid moves that simplify the position.
Can you post a sample game or two.

In Deuterium you can control RepetitionScore, FiftyMoveScore, InsufficientMaterialScore and StalemateScore.
User avatar
Guenther
Posts: 4605
Joined: Wed Oct 01, 2008 6:33 am
Location: Regensburg, Germany
Full name: Guenther Simon

Re: Engines or Settings for playing down in material?

Post by Guenther »

John Conway wrote:You must be stronger than GM Michael Adams or your engines are weaker than Hydra was in 2005.
http://en.chessbase.com/post/adams-vs-h ... achine-5-5

Please read again, David talked about playing a _Knight up_ while Adams
played without handicap in your given link.

Guenther
John Conway
Posts: 161
Joined: Wed Jul 11, 2007 1:44 pm

Re: Engines or Settings for playing down in material?

Post by John Conway »

Guenther wrote:
John Conway wrote:You must be stronger than GM Michael Adams or your engines are weaker than Hydra was in 2005.
http://en.chessbase.com/post/adams-vs-h ... achine-5-5

Please read again, David talked about playing a _Knight up_ while Adams
played without handicap in your given link.

Guenther
Yes, sorry, my bad.
titanD
Posts: 94
Joined: Sun Jun 29, 2014 5:41 pm

Re: Engines or Settings for playing down in material?

Post by titanD »

John Conway wrote:You must be stronger than GM Michael Adams or your engines are weaker than Hydra was in 2005.
Yes I was. If you count strength as relative and by all factors. ability, handicap, etc.

Then we can say I was 3500 ELO
titanD
Posts: 94
Joined: Sun Jun 29, 2014 5:41 pm

Re: Engines or Settings for playing down in material?

Post by titanD »

Ferdy wrote: Can you post a sample game or two.
At your request, I did another:

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. Nf3 c5 6. dxc5 O-O 7. Bd2 Bd7 8.
a3 Bxc5 9. b4 Bb6 10. a4 Nc6 11. a5 Bc7 12. Bd3 h6 13. Ne2 Nxe5 14. Nxe5
Bxe5 15. c3 Qh4 16. g3 Qh3 17. f4 Qg2 18. Rg1 Qf3 19. Nc1 Qxd1+ 20. Kxd1
Bf6 21. Nb3 Rfc8 22. Nc5 Bc6 23. Kc2 d4 24. c4 Rc7 25. Rae1 Be7 26. f5 exf5
27. Bxf5 Bxc5 28. bxc5 Bb5 29. Bd3 Ba4+ 30. Kb2 Rac8 31. Ka3 Bd7 32. Re7
Bc6 33. Rxc7 Rxc7 34. Re1 Rc8 35. Re7 Kf8 36. Re5 Ra8 37. Bf5 a6 38. Bf4 g5
39. Bd2 Kg7 40. Be4 Kf6 41. Bxc6 bxc6 42. Re4 Rd8 43. h4 Kf5 44. Re7 Rf8
45. hxg5 hxg5 46. Ra7 f6 47. Rxa6 Rc8 48. Rb6 Kg4 49. a6 Kxg3 50. a7 Ra8
51. Rxc6 Rxa7+ 52. Kb4 Ra2 53. Rxf6 Rb2+ 54. Ka5 Ra2+ 55. Kb4 Rb2+ 56. Ka4
Rxd2 57. c6 Ra2+ 58. Kb5 Ra7 59. Kb6 Ra3 60. c7 g4 61. c8=Q *

There are sometimes I almost lost pieces because I didn't look two moves ahead.

I guess I'm a super GM now though. My post mortem, the stupid thing thought that my bad moves were better than its good moves just because no matter what it's losing so bad and all it wants to do is trade material hoping that some magic will happen. Seems trivial for a program to modify its parameters throughout the game. I assume it does? And then adjust some things when it's down in material.
titanD
Posts: 94
Joined: Sun Jun 29, 2014 5:41 pm

Re: Engines or Settings for playing down in material?

Post by titanD »

Carlsen can start down a rook and crush me 10 times out of 10. He'll make it look so easy it'll be like a joke

Then he'll play Komodo 9 and lose every time or at best some draws (not likely, especially at 15+0, a smartphone will crush Carlsen on his best day with maybe move odds or possibly even pawn+move at 15+0)

And then I beat Komodo the same way he'll beat me.

And then if he has any character, he'll step down and I'll be crowned WC.

I heard once most strong players aren't calculating more than 4-5 moves deep in most positions and its more about their leaf evaluations and move ordering and pruning.

Well if I can do it 2-3 moves then imagine what I can do with 4-5?
Ferdy
Posts: 4833
Joined: Sun Aug 10, 2008 3:15 pm
Location: Philippines

Re: Engines or Settings for playing down in material?

Post by Ferdy »

titanD wrote:
Ferdy wrote: Can you post a sample game or two.
At your request, I did another:

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. Nf3 c5 6. dxc5 O-O 7. Bd2 Bd7 8.
a3 Bxc5 9. b4 Bb6 10. a4 Nc6 11. a5 Bc7 12. Bd3 h6 13. Ne2 Nxe5 14. Nxe5
Bxe5 15. c3 Qh4 16. g3 Qh3 17. f4 Qg2 18. Rg1 Qf3 19. Nc1 Qxd1+ 20. Kxd1
Bf6 21. Nb3 Rfc8 22. Nc5 Bc6 23. Kc2 d4 24. c4 Rc7 25. Rae1 Be7 26. f5 exf5
27. Bxf5 Bxc5 28. bxc5 Bb5 29. Bd3 Ba4+ 30. Kb2 Rac8 31. Ka3 Bd7 32. Re7
Bc6 33. Rxc7 Rxc7 34. Re1 Rc8 35. Re7 Kf8 36. Re5 Ra8 37. Bf5 a6 38. Bf4 g5
39. Bd2 Kg7 40. Be4 Kf6 41. Bxc6 bxc6 42. Re4 Rd8 43. h4 Kf5 44. Re7 Rf8
45. hxg5 hxg5 46. Ra7 f6 47. Rxa6 Rc8 48. Rb6 Kg4 49. a6 Kxg3 50. a7 Ra8
51. Rxc6 Rxa7+ 52. Kb4 Ra2 53. Rxf6 Rb2+ 54. Ka5 Ra2+ 55. Kb4 Rb2+ 56. Ka4
Rxd2 57. c6 Ra2+ 58. Kb5 Ra7 59. Kb6 Ra3 60. c7 g4 61. c8=Q *
Which side were you playing?

I expected you were a knight up from the start position.
S.Taylor
Posts: 8514
Joined: Thu Mar 09, 2006 3:25 am
Location: Jerusalem Israel

Re: Engines or Settings for playing down in material?

Post by S.Taylor »

titanD wrote:Are there any engines that excel at this or settings you can use on an engine that facilitate this.

I guess you could use one of those engines that lets you specify contempt for draw or some heuristics that correlate with having lots of pieces on the board. But I know nothing about any of this and just notice that I can beat any engine at 15+0 a knight up.

I don't think this should be possible, I'm not a master. The engine picks lots of stupid moves that simplify the position.
I don't know if todays engines are versatile at all. But the older engines had no problem. Just do set-up and remove what you want, or add what you want, and the engine will play super strong chess as usual.

But with recent engines, i never found them to be user friendly at all. Either that, or they're just full of bugs which never get attended to as it seems, no one ever complains.

Hiarcs 7 does it excellently. You would never beat it with a knight up. Even a very strong player will have to work very hard to beat it with a queen up. But Hiarcs 14, even with all the updates? No way it would work well! If it did, i can well imagine it may be full of bugs and useless.