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Subject: Re: Game Rybka-Shredder ended draw (Old PGN and Diagram)

Author: Eelco de Groot

Date: 09:45:50 12/28/05

Go up one level in this thread


On December 28, 2005 at 11:45:19, Sandro Necchi wrote:

>On December 28, 2005 at 11:23:27, Eelco de Groot wrote:
>
>>Sandro, I'll take your word for it that Black is winning :) Right now Qe3 is
>>coming a little closer in the evaluation of Gambit Fruit to f4, f4 is falling
>>just a bit. I'd like to go to 22 ply but hash is long since full, it will
>>probably take a while.. (BTW, OT, I read below a thread that there were once
>>computations done that doubling hash will add 5 to 8 elopoints, Stuart
>>suggesting those are USCF points :), but does this not very much depend on
>>timecontrol and hash quantity? It might be an interesting idea for testing this
>>again with modern hardware and programs, if somebody is willing to invest much
>>hardware time..)
>
>well, the queen is not playing in h3 and needs to be placed in the center to be
>able to support the king and the pawns as well.
>
>Sandro
>

Hi Sandro,

Yes I suppose Qe3 may turn out the best. Centralizing your Queen is sometimes
just as important as centralizing the King in the endgame? It disharmonizes the
three Black pieces, and the Black King seems able to support the three pawns at
the moment, even if the Rook gives checks. I wish I was a bit better at
endings.. I'm curious if Gambit Fruit will change its mind now at ply 22 even if
it doesn't understand the position completely, if both moves f4 and Qe3 will
climb when the horizons is placed further away, how much the branching factor
will go up with hash full... But then I'll take a look at Rybka-Zappa!

Pity you didn't win the game against Icarus Sandro! But the tournament looks
like not to be decided anytime soon, and many strong participants!

 Eelco

22 ply result in for f4, now at almost +2:

Best move (22ply):
04:18:20.3	1,95	22	648391681	f4 Rd6 Qf5 Rd5 Ke6 Bg7 Qf7 Bd4 g4 Kc4 f3 Ne4 g3
Re5+ Kd7+ Kc3 f2 Nxg3 Qf3+ Re3 f1Q Nxf1 Qxf1 Re5 Qf3+ Re3 Qc6+ Kd3 h5 Re1 Qb5+
Ke4
2nd move, provisional, 21 ply result:
04:18:20.3	1,23	21	2233027617	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Bc5 Qc7 Re8+
Kf5 Rf8+ Kg4 Kc4 Qc6 Rd8 h5 Rd6 Qg2 b3 h4 Re6




>>
>>Best move(21 ply):
>>02:04:26.1	1,77	21	509156624	f4 Rd6 Qf5 Rd5 Ke6 Bg7 Qxd5+ Nxd5 Kxd5 Kc2 h5 Bh6
>>f3 Kd2 g4 Ke3 h4 Bf4 h3 Bc7 Ke6 Kf2 Kf5 Bd6
>>
>>2nd move (21 ply):
>>02:04:26.2	1,23	21	2233027617	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Bc5 Qc7 Re8+
>>Kf5 Rf8+ Kg4 Kc4 Qc6 Rd8 h5 Rd6 Qg2 b3 h4 Re6
>>
>> Eelco
>>
>>00:00:00.0	0,57	1	149	f4
>>00:00:00.0	0,29	1	305	Qe3
>>00:00:00.0	0,69	2	631	f4 Kb4
>>00:00:00.0	0,29	1	305	Qe3
>>00:00:00.0	0,69	2	631	f4 Kb4
>>00:00:00.0	0,31	2	862	Qe3 Rd7+ Kg6
>>00:00:00.0	0,78	3	1305	f4 Kb4 f3
>>00:00:00.0	0,31	2	862	Qe3 Rd7+ Kg6
>>00:00:00.0	0,78	3	1305	f4 Kb4 f3
>>00:00:00.0	0,53	3	2148	Qe3 Bd4 Qd2
>>00:00:00.0	0,83	4	4760	f4 Rd6 a5 Bd4
>>00:00:00.0	0,53	3	2148	Qe3 Bd4 Qd2
>>00:00:00.0	0,83	4	4760	f4 Rd6 a5 Bd4
>>00:00:00.0	0,53	4	6731	Qe3 Rd7+ Kg6 Rd6+ Kh5 Re6
>>00:00:00.0	0,83	4	4760	f4 Rd6 a5 Bd4
>>00:00:00.0	0,68	4	7898	Ke7 Rd6 Qe3 Bd4
>>00:00:00.0	0,91	5	13516	f4 Rd6 Qe3 Bh8 h5 Rxa6
>>00:00:00.0	0,68	4	7898	Ke7 Rd6 Qe3 Bd4
>>00:00:00.0	0,91	5	13516	f4 Rd6 Qe3 Bh8 h5 Rxa6
>>00:00:00.0	0,48	5	17114	Ke7 Rd6 Qe3 Bd4 Qd2
>>00:00:00.1	0,91	5	13516	f4 Rd6 Qe3 Bh8 h5 Rxa6
>>00:00:00.1	0,74	5	20523	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4
>>00:00:00.1	0,88	6	30080	f4 Rd6 Qe3 Bd4 Qd2 Rf6+ Kg7 Rd6+ Kg8
>>00:00:00.1	0,74	5	20523	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4
>>00:00:00.1	0,88	6	30080	f4 Rd6 Qe3 Bd4 Qd2 Rf6+ Kg7 Rd6+ Kg8
>>00:00:00.1	0,75	6	39036	Qe3 Bd4 Qe7 Rd5 f4 Rf5+ Kg6
>>00:00:00.2	0,80	7	73776	f4 Rd6 f3 Bd4 a5 Rf6+ Ke8 Nd5
>>00:00:00.2	0,75	6	39036	Qe3 Bd4 Qe7 Rd5 f4 Rf5+ Kg6
>>00:00:00.2	0,81	7	90771	Qe3 Bd4 Qe7 Rd5 f4 Bc5 Qe6
>>00:00:00.2	0,75	6	39036	Qe3 Bd4 Qe7 Rd5 f4 Rf5+ Kg6
>>00:00:00.2	0,81	7	90771	Qe3 Bd4 Qe7 Rd5 f4 Bc5 Qe6
>>00:00:00.2	0,80	7	100280	f4 Rd6 f3 Bd4 a5 Rf6+ Ke8 Nd5
>>00:00:00.3	0,83	8	137852	Qe3 Bd4 Qe7 Rd5 f4 Rf5+ Kg8 Kc2 h5
>>00:00:00.3	0,80	7	100280	f4 Rd6 f3 Bd4 a5 Rf6+ Ke8 Nd5
>>00:00:00.4	0,83	8	137852	Qe3 Bd4 Qe7 Rd5 f4 Rf5+ Kg8 Kc2 h5
>>00:00:00.4	0,77	8	219551	f4 Rd6 f3 Bd4 a5 Rf6+ Ke8 Bb6 Qh4 Bxa5
>>00:00:00.6	0,86	9	393120	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Re5 Qc6 Rf5+ Kg8
>>00:00:00.6	0,77	8	219551	f4 Rd6 f3 Bd4 a5 Rf6+ Ke8 Bb6 Qh4 Bxa5
>>00:00:01.0	0,92	9	675340	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4
>>00:00:01.0	0,86	9	393120	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Re5 Qc6 Rf5+ Kg8
>>00:00:01.2	0,96	10	830214	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kg7
>>Ra7+ Kf6
>>00:00:01.2	0,86	9	393120	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Re5 Qc6 Rf5+ Kg8
>>00:00:01.4	0,96	10	830214	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kg7
>>Ra7+ Kf6
>>00:00:01.5	0,86	10	1027937	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Re5 Qc6 Rf5+ Kg8
>>00:00:01.8	0,94	11	1314778	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kg7
>>Ra7+ Kf6 Ra6+ Ke7
>>00:00:01.8	0,86	10	1027937	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Re5 Qc6 Rf5+ Kg8
>>00:00:02.9	1,00	11	2211290	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Re5 Qc4 Bc5 f3
>>00:00:02.9	0,94	11	1314778	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kg7
>>Ra7+ Kf6 Ra6+ Ke7
>>00:00:03.7	0,99	12	2899023	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Kd2 f3 Re5 Qg4
>>Kd3
>>00:00:03.7	0,94	11	1314778	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kg7
>>Ra7+ Kf6 Ra6+ Ke7
>>00:00:05.0	1,03	12	3965267	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Rd6
>>00:00:05.0	0,94	11	1314778	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kg7
>>Ra7+ Kf6 Ra6+ Ke7
>>00:00:05.2	1,03	12	3965267	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Rd6
>>00:00:05.2	0,99	12	4119140	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Kd2 f3 Re5 Qg4
>>Kd3
>>00:00:09.2	1,22	13	7355024	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Kc4 Qe6+
>>Kd3 h3
>>00:00:09.2	0,99	12	4119140	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 Kf7 Kd2 f3 Re5 Qg4
>>Kd3
>>00:00:11.9	1,22	13	7355024	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Kc4 Qe6+
>>Kd3 h3
>>00:00:11.9	1,00	13	9692711	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Qh3 Re5+ Kf7
>>Ke3 Qd7 Ne4
>>00:00:19.0	1,29	14	15825321	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Ra8 h3 Rh8+ Kg4
>>00:00:19.0	1,00	13	9692711	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Qh3 Re5+ Kf7
>>Ke3 Qd7 Ne4
>>00:00:22.2	1,29	14	15825321	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Ra8 h3 Rh8+ Kg4
>>00:00:22.2	0,97	14	18635337	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Qh3 Ke3 Qg2
>>Rf5 g4 Ne4
>>00:00:50.3	1,38	15	43065970	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Rd6 h3 Rd5 Qf4
>>00:00:50.3	0,97	14	18635337	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Qh3 Ke3 Qg2
>>Rf5 g4 Ne4
>>00:00:59.9	1,38	15	43065970	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Rd6 h3 Rd5 Qf4
>>00:00:59.9	0,96	15	51481966	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Kf7 Rc5 Kg6
>>Ne4 g4 Rc7 h5
>>00:01:44.3	1,41	16	90524136	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Rd6 h3 Rd5 Qf4 Kc2
>>00:01:44.3	0,96	15	51481966	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Kf7 Rc5 Kg6
>>Ne4 g4 Rc7 h5
>>00:02:10.7	1,41	16	90524136	f4 Rd6 Qf5 Bd4 f3 Bf2 h5 Rxa6 h4 Ra7+ Kg6 Ra6+ Kh5
>>Rd6 h3 Rd5 Qf4 Kc2
>>00:02:10.7	0,92	16	113663252	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Kf7 Re5 Qh3
>>Ke4 Qg4+ Kd3 Qg2 Rf5+ Kg6 Rf6+ Kh5
>>00:07:09.2	1,46	17	371445675	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bf2 h5 Kc2 Qg6+ Kd2 g4
>>Bc5 g3 Rd7+ Ke8 Re7+ Kd8 Ne4
>>00:07:09.2	0,92	16	113663252	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Kf7 Re5 Qh3
>>Ke4 Qg4+ Kd3 Qg2 Rf5+ Kg6 Rf6+ Kh5
>>00:07:48.5	1,46	17	371445675	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bf2 h5 Kc2 Qg6+ Kd2 g4
>>Bc5 g3 Rd7+ Ke8 Re7+ Kd8 Ne4
>>00:07:48.5	0,92	17	405808493	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Kf7 Re5 Qh3
>>Ke3 Qg4 Kd3 Qg2 Rf5+ Kg6 Rf6+ Kh5
>>00:10:57.2	1,51	18	571429388	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bf2 g4 Bg3 h5 Kc2 h4 Bxh4
>>g3 Rd3 Qg4 Bd8
>>00:10:57.2	0,92	17	405808493	Qe3 Rd7+ Ke8 Bd4 Qe6+ Rd5 f4 Kc2 f3 Kd3 Kf7 Re5 Qh3
>>Ke3 Qg4 Kd3 Qg2 Rf5+ Kg6 Rf6+ Kh5
>>00:14:17.5	1,51	18	571429388	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bf2 g4 Bg3 h5 Kc2 h4 Bxh4
>>g3 Rd3 Qg4 Bd8
>>00:14:17.5	1,04	18	743093252	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd5 h5 Re5+ Kf7 Rd5 h4 Bc5 Qf3
>>Rd7+ Kg6 Rd6+ Kh5 Rxa6 h3 Ra7 g4 Bd6
>>00:20:47.3	1,68	19	1080744749	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bf2 g4 Bg3 h5 Bf2 Ke8
>>Ka3 Qg6 Bg3 Ke7 Rc5 Kf8
>>00:20:47.3	1,04	18	743093252	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd5 h5 Re5+ Kf7 Rd5 h4 Bc5 Qf3
>>Rd7+ Kg6 Rd6+ Kh5 Rxa6 h3 Ra7 g4 Bd6
>>00:25:32.2	1,68	19	1080744749	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bf2 g4 Bg3 h5 Bf2 Ke8
>>Ka3 Qg6 Bg3 Ke7 Rc5 Kf8
>>00:25:32.2	1,08	19	1326075870	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Kc4 f3 Bc5 Qf5
>>Rd6+ Kf7 Bf2 Qc8+ Kd3 h5 Nd5 g4 Rf6+ Kg7
>>00:47:32.5	1,84	20	2404029444	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bc5 h5 Ka3 g4 Bf2 Kg6
>>Kb3 Qe7 Ra5 Qf6 Nd5 Qd6 Bd4
>>00:47:32.5	1,08	19	1326075870	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Kc4 f3 Bc5 Qf5
>>Rd6+ Kf7 Bf2 Qc8+ Kd3 h5 Nd5 g4 Rf6+ Kg7
>>01:05:05.8	1,84	20	2404029444	f4 Rd6 Qf5 Bd4 f3 Rd5 Qe6 Bc5 h5 Ka3 g4 Bf2 Kg6
>>Kb3 Qe7 Ra5 Qf6 Nd5 Qd6 Bd4
>>01:05:05.9	1,16	20	3339830673	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Kc4 f3 Bc5 Qf5
>>Rd6+ Kf7 Rd8 Kg6 Rg8+ Kh5 Rf8 Qe6+ Nd5 Qe2+ Kc3 Qe5+ Kc4 Qe4+ Bd4 Qc2+ Kb4
>>01:32:07.5	1,77	21	509156624	f4 Rd6 Qf5 Rd5 Ke6 Bg7 Qxd5+ Nxd5 Kxd5 Kc2 h5 Bh6
>>f3 Kd2 g4 Ke3 h4 Bf4 h3 Bc7 Ke6 Kf2 Kf5 Bd6
>>01:32:07.5	1,16	20	3339830673	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Kc4 f3 Bc5 Qf5
>>Rd6+ Kf7 Rd8 Kg6 Rg8+ Kh5 Rf8 Qe6+ Nd5 Qe2+ Kc3 Qe5+ Kc4 Qe4+ Bd4 Qc2+ Kb4
>>02:04:26.1	1,77	21	509156624	f4 Rd6 Qf5 Rd5 Ke6 Bg7 Qxd5+ Nxd5 Kxd5 Kc2 h5 Bh6
>>f3 Kd2 g4 Ke3 h4 Bf4 h3 Bc7 Ke6 Kf2 Kf5 Bd6
>>02:04:26.2	1,23	21	2233027617	Qe3 Rd7+ Ke6 Bd4 Qd3 Rd8 f4 Bb6 Qh7 Bc5 Qc7 Re8+
>>Kf5 Rf8+ Kg4 Kc4 Qc6 Rd8 h5 Rd6 Qg2 b3 h4 Re6



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