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Re: OpenTal - almost new engine

Posted: Mon Dec 25, 2017 11:15 pm
by fern
In my behalf I can say that I still does not play at full trothle with it, as ever happens when you begin to probe an engine, because you just play a little bit shallow and fast to see what happenes. I could see as you how supicious his moves are, BUT to defeat them you need a more slow, careful play. I am sure -???- I will win it IF I play my best....

Full of hopes regards
F

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 6:58 am
by BrendanJNorman
Wrote a few words about OpenTal here:

http://chessncognac.com/opental-chess-engine/

You can download PGNs on the page with a button on the bottom left corner of the board. ;)

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 9:50 am
by gbtami
BrendanJNorman wrote:Wrote a few words about OpenTal here:

http://chessncognac.com/opental-chess-engine/

You can download PGNs on the page with a button on the bottom left corner of the board. ;)
Great post, Brendan. Liked it! :)

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 10:26 am
by BrendanJNorman
gbtami wrote:
BrendanJNorman wrote:Wrote a few words about OpenTal here:

http://chessncognac.com/opental-chess-engine/

You can download PGNs on the page with a button on the bottom left corner of the board. ;)
Great post, Brendan. Liked it! :)
Thanks! :lol:

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 1:08 pm
by Robert Flesher
BrendanJNorman wrote:
jdart wrote:Nice, but not really Tal-like, because the sacrifices are sound!

--Jon
This is the only engine I've seen that plays Tal's ...Nf4 here.


Image

Speculative as hell! :)

I actually used this position (as well as others) while tuning, as a guide.


Komodo 10 tweaked!


New game
2r3k1/pp4bp/3p2p1/3Ppb1n/1qr5/2N1B1PP/PP2QPBK/R1R5 b - - 0 1

Analysis by Komodo 10 64-bit:

New game
2r3k1/pp4bp/3p2p1/3Ppb1n/1qr5/2N1B1PP/PP2QPBK/R1R5 b - - 0 1

Analysis by Komodo 10 64-bit:

1...Nf4 2.gxf4
= (-0.04 --) Depth: 24 00:00:08 18344kN
(, 28.12.2017)

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 1:20 pm
by BrendanJNorman
Robert Flesher wrote:
BrendanJNorman wrote:
jdart wrote:Nice, but not really Tal-like, because the sacrifices are sound!

--Jon
This is the only engine I've seen that plays Tal's ...Nf4 here.


Image

Speculative as hell! :)

I actually used this position (as well as others) while tuning, as a guide.


Komodo 10 tweaked!


New game
2r3k1/pp4bp/3p2p1/3Ppb1n/1qr5/2N1B1PP/PP2QPBK/R1R5 b - - 0 1

Analysis by Komodo 10 64-bit:

New game
2r3k1/pp4bp/3p2p1/3Ppb1n/1qr5/2N1B1PP/PP2QPBK/R1R5 b - - 0 1

Analysis by Komodo 10 64-bit:

1...Nf4 2.gxf4
= (-0.04 --) Depth: 24 00:00:08 18344kN
(, 28.12.2017)
Settings please... :lol: :D

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 1:40 pm
by Ovyron
Robert Flesher wrote:Komodo 10 tweaked!

New game
2r3k1/pp4bp/3p2p1/3Ppb1n/1qr5/2N1B1PP/PP2QPBK/R1R5 b - - 0 1

Analysis by Komodo 10 64-bit:

1...Nf4 2.gxf4
= (-0.04 --) Depth: 24 00:00:08 18344kN
(, 28.12.2017)
Komodo Dynamic with Dynamism=200 doesn't consider anything else!

[D]2r3k1/pp4bp/3p2p1/3Ppb1n/1qr5/2N1B1PP/PP2QPBK/R1R5 b - -

18.00 0:01 -0.40-- 1...Nf4 2.gxf4 (4.364.307) 2356
18.00 0:02 -0.46++ 1...Nf4 2.gxf4 exf4 (5.138.771) 2346
19.00 0:02 -0.52++ 1...Nf4 2.gxf4 exf4 (5.549.294) 2334
19.00 0:02 -0.46-- 1...Nf4 2.gxf4 (6.408.523) 2355
19.00 0:03 -0.52++ 1...Nf4 2.gxf4 exf4 (7.213.311) 2374
20.01 0:03 -0.46-- 1...Nf4 2.gxf4 (8.221.727) 2396
20.01 0:03 -0.40-- 1...Nf4 2.gxf4 (9.431.703) 2404
20.01 0:05 -0.31-- 1...Nf4 2.gxf4 (13.009.572) 2373
20.01 0:07 -0.18-- 1...Nf4 2.gxf4 (17.842.112) 2339
20.01 0:08 -0.28++ 1...Nf4 2.gxf4 exf4 (20.918.053) 2329
21.01 0:09 -0.22-- 1...Nf4 2.gxf4 (22.916.543) 2334
21.01 0:10 -0.16-- 1...Nf4 2.gxf4 (25.323.593) 2334
21.01 0:12 -0.22++ 1...Nf4 2.gxf4 exf4 (30.005.961) 2331
22.01 0:14 -0.19 1...Nf4 2.gxf4 exf4 3.a3 Qa5 4.Bd2 Be5 5.f3 Qb6 6.Be1 Qb3 7.Bf2 a5 8.Qd1 Qxb2 9.Ra2 Rxc3 10.Rxb2 Rxc1 11.Qe2 Bxb2 12.Qxb2 R1c2 13.Qb6 Rd2 14.Bd4 Rcc2 (32.897.802) 2335
23.01 0:15 -0.25++ 1...Nf4 2.gxf4 exf4 (36.726.261) 2346
23.01 0:16 -0.31++ 1...Nf4 2.gxf4 exf4 (37.537.187) 2345
23.01 0:17 -0.25-- 1...Nf4 2.gxf4 (40.606.411) 2351
23.01 0:20 -0.12-- 1...Nf4 2.gxf4 (49.016.029) 2368
23.01 0:26 -0.22++ 1...Nf4 2.gxf4 exf4 (61.759.463) 2368
24.01 0:27 -0.28++ 1...Nf4 2.gxf4 exf4 (64.800.111) 2380
24.01 0:31 -0.22-- 1...Nf4 2.gxf4 (74.307.000) 2375
24.01 0:37 -0.28++ 1...Nf4 2.gxf4 exf4 (88.862.048) 2369
25.01 0:42 -0.22-- 1...Nf4 2.gxf4 (100.892.925) 2377
25.01 0:47 -0.16-- 1...Nf4 2.gxf4 (112.497.845) 2380
25.01 1:04 -0.07-- 1...Nf4 2.gxf4 (151.612.922) 2367
25.01 1:41 -0.14++ 1...Nf4 2.gxf4 exf4 (240.646.858) 2367
best move: Nh5-f4 time: 1:41.656 min n/s: 2.367.351 nodes: 240.657.480

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 1:42 pm
by Ovyron
BrendanJNorman wrote:Settings please... :lol: :D
(in case you want mine as well ) :wink:

(Komodo 10.1)

For black side:
Reduction=-15
Dynamism=200
Contempt=-100
White Contempt=true
Null Scale=27

For white side:
Reduction=-15
Dynamism=200
Contempt=100
White Contempt=true
Null Scale=27

Re: OpenTal - almost new engine

Posted: Thu Dec 28, 2017 7:20 pm
by duncan
I loaded arena 3.5.1 with opental. set level to 1 sec /move. (above picosend/move I have no chance. ) moved p k4 with white. It did not respond. loaded stockfish and moved almost straight away.

what should I be doing to get opental to work ?

(I like the idea of chess software thinking I know you are useless and am going to march straight to your king and mating and am going to safely sacrifice a piece in the process )

Re: OpenTal - almost new engine

Posted: Fri Dec 29, 2017 8:21 am
by PK

Code: Select all

I loaded arena 3.5.1 with opental. set level to 1 sec /move. (above picosend/move I have no chance. ) moved p k4 with white. It did not respond. loaded stockfish and moved almost straight away. 
Which operating system are you using?

Also, the OpenTal distribution contains three different .exe files. Try opening each of them. A black window should appear. Type "bench" and see which one responds. Use that one.