Star Diamond v London Pro-Commonwealth Computer Chess Cup!

Wardy · Post by **Wardy** » Sun Nov 11, 2007 11:47 am

Well we'll play on for a little further and see if the BLP can find the right defence but I''m sure we'll both be sensible as to the right point to make a decision......

Pragmatic regards

Paul

Larry · Post by **Larry** » Sun Nov 11, 2007 11:53 am

Hi all,

Fritz 8 gives white about 0.50 or thereabouts after about 10 minutes.
Still, as Paul says, it's whether or not BPL can find the draw or not that
counts. As I see it, white can't take the h pawn here or black gets a
perpetual.

42.Qf3 Qb1

regards
Larry

Post by **Steve B** » Sun Nov 11, 2007 12:08 pm

Larry wrote:Hi all,

Fritz 8 gives white about 0.50 or thereabouts after about 10 minutes.
Still, as Paul says, it's whether or not BPL can find the draw or not that
counts. As I see it, white can't take the h pawn here or black gets a
perpetual.

42.Qf3 Qb1

regards
Larry

by all means Gentlemen..play on!

while its interesting to see what other computers think of the position it is certainly no indication of how your computers will play it

Soldier On Regards
Steve

Wardy · Post by **Wardy** » Sun Nov 11, 2007 1:56 pm

First real mistake in recent play from the SD

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5
Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re2 Qh4 14.g3 Qh3 15.Nd2 Bf5 16.Ne4 Be7
17.f3 Bg6 18.Nf2 Qd7 19.Nd3 Bd6 20.Ne5 Bxe5 21.dxe5 Rad8 22.Qd4 Qe7 23.Qf2 c5 24.Be3
Nxe3 25.Rxe3 c4 26.Bc2 Bxc2 27.Qxc2 Rd5 28.Rae1 Rfd8 29.Qf2 R5d2 30.R3e2 Rxe2
31.Rxe2 Rd1+ 32.Re1 Qd7 33.Rxd1 Qxd1+ 34.Kg2 a5 35.a3 a4 36.g4 g6 37.h4 h6 38.Kg3 Qc1
39.f4 Qd1 40.Qe3 h5 41.gxh5 gxh5 42.Qf3 Qb1 43.Qg2 *

[fen]6k1/5p2/8/1p2P2p/p1p2P1P/P1P3K1/1P4Q1/1q6 w - - 3 43 [/fen]

I think Qe2 would have been better defending the b pawn whilst keeping the pressure on blacks h pawn. Be interesting to see what the BLP makes of this.......

Regards

Paul

Larry · Post by **Larry** » Sun Nov 11, 2007 10:20 pm

[fen]8/5p1k/8/1p2P2p/p1p2P1P/P1P3K1/1P4Q1/1q6 w - - 3 43 [/fen]

42.Qf3 Qb1
43.Qg2 Kh7

score -0.30
I was a bit surprised at this. The king can't do much on the edge of the
board. I would instinctively move it f8.

Perpetually yours,
Larry

Wardy · Post by **Wardy** » Mon Nov 12, 2007 8:12 am

Late for work so got to be quick!

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5
Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re2 Qh4 14.g3 Qh3 15.Nd2 Bf5 16.Ne4 Be7
17.f3 Bg6 18.Nf2 Qd7 19.Nd3 Bd6 20.Ne5 Bxe5 21.dxe5 Rad8 22.Qd4 Qe7 23.Qf2 c5 24.Be3
Nxe3 25.Rxe3 c4 26.Bc2 Bxc2 27.Qxc2 Rd5 28.Rae1 Rfd8 29.Qf2 R5d2 30.R3e2 Rxe2
31.Rxe2 Rd1+ 32.Re1 Qd7 33.Rxd1 Qxd1+ 34.Kg2 a5 35.a3 a4 36.g4 g6 37.h4 h6 38.Kg3 Qc1
39.f4 Qd1 40.Qe3 h5 41.gxh5 gxh5 42.Qf3 Qb1 43.Qg2 Kh7 44.Qd2 *

[fen]8/5p1k/8/1p2P2p/p1p2P1P/P1P3K1/1P1Q4/1q6 w - - 5 44 [/fen]

+0.61 regards

Paul

Larry · Post by **Larry** » Mon Nov 12, 2007 10:04 am

[fen]8/5p1k/6q1/1p2P2p/p1p2P1P/P1P3K1/1P1Q4/8 w - - 3 43 [/fen]

Hi all,

43.Qg2 Kh7
44.Qd2 Qg6+

score 0.00 depth 11/23

Looks like BPL sees a perp. We can keep going for as long as SD
considers it a plus for itself. In any case, SD has aquitted itself well,
and played quite accurate chess, IMO.
regards
Larry

Wardy · Post by **Wardy** » Mon Nov 12, 2007 6:42 pm

Evening all,

I really don't like the SDs reply

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5
Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re2 Qh4 14.g3 Qh3 15.Nd2 Bf5 16.Ne4 Be7
17.f3 Bg6 18.Nf2 Qd7 19.Nd3 Bd6 20.Ne5 Bxe5 21.dxe5 Rad8 22.Qd4 Qe7 23.Qf2 c5 24.Be3
Nxe3 25.Rxe3 c4 26.Bc2 Bxc2 27.Qxc2 Rd5 28.Rae1 Rfd8 29.Qf2 R5d2 30.R3e2 Rxe2
31.Rxe2 Rd1+ 32.Re1 Qd7 33.Rxd1 Qxd1+ 34.Kg2 a5 35.a3 a4 36.g4 g6 37.h4 h6 38.Kg3 Qc1
39.f4 Qd1 40.Qe3 h5 41.gxh5 gxh5 42.Qf3 Qb1 43.Qg2 Kh7 44.Qd2 Qg6+ 45.Kf2 *

[fen]8/5p1k/6q1/1p2P2p/p1p2P1P/P1P5/1P1Q1K2/8 w - - 7 45 [/fen]

Just seems to give the h4 pawn up for no reason?! A quick analysis with the PC shows the repetition is still to be had by black. Score was under 1 for most of the search before shooting back over 1 in the final minutes

depth was complete 9 and was very nearly at the end of it's 10th which is strange to me as the depth has been at least one ply deeper for most of the game. Perhaps the endgame evaluation is more complex?!

I'm expecting black to play Qg4 so the SD is just chewing on this...

Equal material ahoy regards

Paul

Post by **Steve B** » Mon Nov 12, 2007 6:50 pm

Wardy wrote: I really don't like the SDs reply

[fen]8/5p1k/6q1/1p2P2p/p1p2P1P/P1P5/1P1Q1K2/8 w - - 7 45 [/fen]

Just seems to give the h4 pawn up for no reason?! A quick analysis with the PC shows the repetition is still to be had by black.

Strange move indeed Paul
we all know that Rybka will start to toss pawns away just to avoid a rep draw
god knows what will happen here ???

Deeply Concerned Regards
Steve

Wardy · Post by **Wardy** » Mon Nov 12, 2007 6:56 pm

Steve B wrote: Deeply Concerned Regards.........

Agreed Steve, after playing very well indeed for a dedicated machine the last couple of moves have been pretty bad - even I can see they aren't the best!

If the SD doesn't watch out then I fear the BLP might even snatch the win here.........still it brings about an exciting finish for the public!

Petrified regards

Paul

Wardy · Post by **Wardy** » Mon Nov 12, 2007 7:38 pm

OK, Conditional moves

If ........Qg4 then Ke3 for a score of +0.5

Now going to chew on the potential follow on reply to Qxh4

Not looking any better regards

Paul

Wardy · Post by **Wardy** » Mon Nov 12, 2007 8:55 pm

And finally for tonight

If .......Qg4 then Ke3
then if Qxh4 then Qc2+

Should speed things up a little

ricard60 · Post by **ricard60** » Mon Nov 12, 2007 10:47 pm

In this position palm hiarcs think for about 4 minutes an played 45..Qg4 and then shows the following line: 46.Ke3 Qh3+ 47.Ke4 Qxh4. It still looks like a draw.

Best
Ricardo

Larry · Post by **Larry** » Tue Nov 13, 2007 4:42 am

ricard60 wrote:In this position palm hiarcs think for about 4 minutes an played 45..Qg4 and then shows the following line: 46.Ke3 Qh3+ 47.Ke4 Qxh4. It still looks like a draw.

Best
Ricardo

Hi Ricardo, been thinking about getting one of those palm things. Palm
with Hiarcs rates at 2600 I think.

[fen]7k/5p2/8/1p2P2p/p1p2P1q/P1P1K3/1PQ5/8 w - - 7 45 [/fen]
On with the game:
45.Kf2 Qg4
46.Ke3 Qxh4
47Qc2+ Kh8
if 48.Qg2 then Kh7

We're shifting gears here, easier to give conditionals. If SD is not
careful BPL may even get the upper hand with his passed pawn. But
correctly played, it's a draw for sure. It may be white looking for a
perpetual soon though.
score -0.03 for black
regards
Larry

Wardy · Post by **Wardy** » Tue Nov 13, 2007 8:41 am

Goond Morning all,

Play continues

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5
Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re2 Qh4 14.g3 Qh3 15.Nd2 Bf5 16.Ne4 Be7
17.f3 Bg6 18.Nf2 Qd7 19.Nd3 Bd6 20.Ne5 Bxe5 21.dxe5 Rad8 22.Qd4 Qe7 23.Qf2 c5 24.Be3
Nxe3 25.Rxe3 c4 26.Bc2 Bxc2 27.Qxc2 Rd5 28.Rae1 Rfd8 29.Qf2 R5d2 30.R3e2 Rxe2
31.Rxe2 Rd1+ 32.Re1 Qd7 33.Rxd1 Qxd1+ 34.Kg2 a5 35.a3 a4 36.g4 g6 37.h4 h6 38.Kg3 Qc1
39.f4 Qd1 40.Qe3 h5 41.gxh5 gxh5 42.Qf3 Qb1 43.Qg2 Kh7 44.Qd2 Qg6+ 45.Kf2 Qg4 46.Ke3
Qxh4 47.Qc2+ Kh8 48.Qg2 Kh7 49.f5 *

[fen]8/5p1k/8/1p2PP1p/p1p4q/P1P1K3/1P4Q1/8 w - - 0 49 [/fen]

You're right Larry in that it's still a draw with best play but it's now the SD that is on the back foot!

The PC engines need about 18/19 ply to see that it's drawn so thats way beyond the horizon of the SD.

Sorry no time for a conditional move before work

I'm playing in round 1 of a knockout tournament tonight so there might be a short delay in my reply depending on how much sobbing I do after being beaten by my 13 year old opponent

Positive mental attitude regards

Paul