Author: Eelco de Groot
Date: 22:34:49 12/21/05
Go up one level in this thread
On December 21, 2005 at 23:54:45, Timothy J. Frohlick wrote:
>Eelco,
>
>I played f5 and then allowed Rybka to play itself. White won. The game was won
>by passed pawns. White ended up with two queens.
>
>This position is a good positional test for all chess programs. There are
>many things to consider but all programs should play for a won endgame. I am
>sure that Vasik Rajlich will correct Rybka in a future edition to understand
>these types of positions.
>
>TJ
>
Hi Timothy,
Yes, I think you are right, it is a good test for positional play. I'm really a
very poor player only 1300 Elos but still f5 seems to me to have something going
for it: White has a strong pawnchain from c2 to f5. White's two Knights are not
much hampered by it, but Black's pieces are. After f5 both Bishops and Queen are
constrained and field g6 is inaccessible to Black's Knight. It would have to go
g8-h6 but h6 is now under control by White's Bishop, g4 after that solely by
White's Queen. Black's Kingside pawns on f6 and h5 are weak. White should be
able to take control over the h or g-file. But I'm really not very good: I can't
seem to figure out at all why the computers want to play Qe1 here? Because of
Qe1-Qf2-Qa7? Or Qe1-Ne2-Qa5?
Quartax now at 20 ply:
00:00:00.0 -0,14 5 8150 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8
00:00:00.0 -0,01 5 27506 Qe1 Kb8 fxe5 Bxe5+ Bf4 Bxf4+ Rxf4
00:00:00.1 -0,25 6 50153 Qe1 Rh7 Nf3 Kb8 fxe5 Bxe5+ Nxe5 fxe5
00:00:00.1 -0,06 6 57433 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 Rg1
00:00:00.1 -0,11 7 101570 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 Be5 fxe5 Rxf7
00:00:00.3 -0,03 8 188010 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 c4 Be6 Qf3
00:00:00.5 -0,01 9 350203 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 Bg3 Qe6 Nf5 Nxf5 Rxf5
00:00:01.0 0,03 10 829595 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bc5 Na4 Bd6 Bxd6 Qxd6+ Kg2 Kb8
00:00:02.0 -0,02 11 1632241 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bxc3 bxc3 Kb8 Rg1 Be6 Rg7
Bxh3
00:00:04.6 0,00 12 3819548 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Nxd4 cxd4 Ne2 Qb5 Bc1 Qe5+
Bf4 Qb5
00:00:09.5 -0,10 13 8094927 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bc5 Na4 Bd6 Bxd6 Qxd6+ Kh1
Kb8 Qd2 Be6 Qg2
00:00:23.8 -0,08 14 20626922 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Nxd4 cxd4 Ne2 Kb8 Bg3 Rh6
Be5 fxe5 Rxf7
00:00:56.3 -0,20 15 49090055 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Bg3 Be6 Nxd4 cxd4 Ne2 h4
Be1 Qd6+ Nf4 Kb8 Bb4
00:02:05.6 -0,19 15 109373814 Qe1 Rhg8 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Ne2 Bxb2 Rb1
Ba3 Qc3 Bb4 Qxf6 Bxa2
00:07:02.7 -0,28 16 365221846 Qe1 c5 fxe5 Bxe5+ Bf4 Bd4 Ne2 Bxb2 Rb1 Ba3 Qc3 Bb4
Qb2 Qc6 Be3 Rd6 Nf3
00:07:47.1 -0,22 16 403981714 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bxc3 bxc3 Be6 Rg1 Bxh3 Rb1
Be6 a4 Kb8 Rg7 Rhg8 Qg1 Rxg7 Qxg7
00:10:46.6 -0,17 16 560003571 Be3 Kb8 f5 Rdg8 Rg1 Rxg1 Qxg1 Rg8 Qe1 Bb4 Qd2 Rg7
Nf3 Qd6 b3 Bc5
00:33:51.0 -0,20 17 1764511079 Be3 c5 f5 Nc6 Rg1 Kb8 Qd2 Nd4 Rg7 Rdg8 Rag1 Rxg7
Rxg7 Bf8 Rg1 Rg8 Rxg8 Bxg8 Bxd4 cxd4
00:36:31.6 -0,09 17 1903787225 Qe1 c5 fxe5 Bxe5+ Bf4 Bd4 Ne2 Bxb2 Rb1 Ba3 Qc3
Bb4 Qb2 Qc6 a3 Ba5 Be5 Kb8 Rxf6
00:58:31.0 0,00 18 3050263990 Qe1 Rh7 Qf2 Kb8 fxe5 Bxe5+ Bf4 Bd4 Be3 Be5+ Bf4
01:15:11.7 0,00 19 3934591293 Qe1 Rh7 Qf2 Kb8 fxe5 Bxe5+ Bf4 Bd4 Be3 Be5+ Bf4
02:19:06.6 0,05 20 3002829573 Qe1 c5 fxe5 Bxe5+ Bf4 Bd4 Ne2 Be6 Nxd4 cxd4 Rg1
Rh7 Qa5 Kb8 Ng6 Nc6 Qc5 Bxh3 Nf8 Qe7 Qxe7 Rxe7 Kxh3 Rxf8
>
>On December 21, 2005 at 23:29:20, Eelco de Groot wrote:
>
>>On December 21, 2005 at 03:14:41, Timothy J. Frohlick wrote:
>>
>>>[D]2kr3r/1ppqnb2/p1pb1p2/4p2p/4PP1N/2NP3P/PPP4K/R1BQ1R2 w - - 0 15
>>>
>>>[Event "Blitz:5'"]
>>>
>>>[White "Frohlick, Tim"]
>>>[Black "Rybka 1.0 Beta 32-bit v1.0 Be"]
>>>[Result "*"]
>>>[PlyCount "28"]
>>>[TimeControl "300"]
>>>
>>>{192MB, Shredder8.ctg, 1. e4 {[%emt 0:00:00]} e5 {
>>>[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:07]} Nc6 {[%emt 0:00:00]} 3. Bb5 {
>>>[%emt 0:00:02]} a6 {[%emt 0:00:00]} 4. Bxc6 {[%emt 0:00:01]} dxc6 {
>>>[%emt 0:00:00]} 5. O-O {[%emt 0:00:02]} f6 {[%emt 0:00:00]} 6. Nc3 {
>>>[%emt 0:00:02]} Bg4 {[%emt 0:00:00]} 7. h3 {[%emt 0:00:02]} Bh5 {[%emt 0:00:45]
>>>} 8. g4 {[%emt 0:00:18]} Bf7 {[%emt 0:00:12]} 9. d3 {[%emt 0:00:01]} h5 {
>>>[%emt 0:00:14]} 10. g5 {[%emt 0:00:04]} Qd7 {[%emt 0:00:25]} 11. Kh2 {
>>>[%emt 0:00:30]} Bd6 {[%emt 0:00:00]} 12. gxf6 {[%emt 0:00:05]} gxf6 {
>>>[%emt 0:00:20]} 13. Nh4 {[%emt 0:00:18]} Ne7 {[%emt 0:00:08]} 14. f4 {
>>>[%emt 0:00:12]} O-O-O {[%emt 0:00:11]} *
>>>
>>>Very Strange Opening,
>>>
>>>TJ
>>
>>I tried out the new Lord King from Carlo Pivotto here in the Quartax
>>personality, there are four different ones; I had to pick one, this one has the
>>largest executable so I was figuring maybe it has a little more knowledge?
>>
>>Quartax doesn't seem to be a typical fast searcher in the sense it doesn't get
>>huge plydepths, at the moment it is calculating whether to play f4-f5 as Paul
>>suggested at plydepth 17. Maybe it will play it? No, not at this ply it seems,
>>but maybe at ply 18!
>>
>> Eelco
>>
>>00:00:00.0 0,42 1 36 fxe5 Bxe5+ Bf4 Bxc3 bxc3
>>00:00:00.0 0,13 2 668 fxe5 Bxe5+ Bf4
>>00:00:00.0 0,17 3 1344 fxe5 Bxe5+ Bf4 Bd4
>>00:00:00.0 0,42 4 3472 fxe5 Bxe5+ Bf4 Bxc3 bxc3
>>00:00:00.0 -0,14 5 8150 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8
>>00:00:00.0 -0,01 5 27506 Qe1 Kb8 fxe5 Bxe5+ Bf4 Bxf4+ Rxf4
>>00:00:00.1 -0,25 6 50153 Qe1 Rh7 Nf3 Kb8 fxe5 Bxe5+ Nxe5 fxe5
>>00:00:00.1 -0,06 6 57433 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 Rg1
>>00:00:00.1 -0,11 7 101570 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 Be5 fxe5 Rxf7
>>00:00:00.3 -0,03 8 188010 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 c4 Be6 Qf3
>>00:00:00.5 -0,01 9 350203 fxe5 Bxe5+ Bf4 Bxc3 bxc3 Kb8 Bg3 Qe6 Nf5 Nxf5 Rxf5
>>00:00:01.0 0,03 10 829595 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bc5 Na4 Bd6 Bxd6 Qxd6+ Kg2 Kb8
>>00:00:02.0 -0,02 11 1632241 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bxc3 bxc3 Kb8 Rg1 Be6 Rg7
>>Bxh3
>>00:00:04.6 0,00 12 3819548 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Nxd4 cxd4 Ne2 Qb5 Bc1 Qe5+
>>Bf4 Qb5
>>00:00:09.5 -0,10 13 8094927 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bc5 Na4 Bd6 Bxd6 Qxd6+ Kh1
>>Kb8 Qd2 Be6 Qg2
>>00:00:23.8 -0,08 14 20626922 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Nxd4 cxd4 Ne2 Kb8 Bg3 Rh6
>>Be5 fxe5 Rxf7
>>00:00:56.3 -0,20 15 49090055 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Bg3 Be6 Nxd4 cxd4 Ne2 h4
>>Be1 Qd6+ Nf4 Kb8 Bb4
>>00:02:05.6 -0,19 15 109373814 Qe1 Rhg8 fxe5 Bxe5+ Bf4 Bd4 Nf3 c5 Ne2 Bxb2 Rb1
>>Ba3 Qc3 Bb4 Qxf6 Bxa2
>>00:07:02.7 -0,28 16 365221846 Qe1 c5 fxe5 Bxe5+ Bf4 Bd4 Ne2 Bxb2 Rb1 Ba3 Qc3 Bb4
>>Qb2 Qc6 Be3 Rd6 Nf3
>>00:07:47.1 -0,22 16 403981714 fxe5 Bxe5+ Bf4 Bd4 Nf3 Bxc3 bxc3 Be6 Rg1 Bxh3 Rb1
>>Be6 a4 Kb8 Rg7 Rhg8 Qg1 Rxg7 Qxg7
>>00:10:46.6 -0,17 16 560003571 Be3 Kb8 f5 Rdg8 Rg1 Rxg1 Qxg1 Rg8 Qe1 Bb4 Qd2 Rg7
>>Nf3 Qd6 b3 Bc5
>>00:33:51.0 -0,20 17 1764511079 Be3 c5 f5 Nc6 Rg1 Kb8 Qd2 Nd4 Rg7 Rdg8 Rag1 Rxg7
>>Rxg7 Bf8 Rg1 Rg8 Rxg8 Bxg8 Bxd4 cxd4
>>00:36:31.6 -0,09 17 1903787225 Qe1 c5 fxe5 Bxe5+ Bf4 Bd4 Ne2 Bxb2 Rb1 Ba3 Qc3
>>Bb4 Qb2 Qc6 a3 Ba5 Be5 Kb8 Rxf6
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