Author: Uri Blass
Date: 06:12:26 06/23/04
Go up one level in this thread
On June 23, 2004 at 08:44:43, Uri Blass wrote:
>On June 23, 2004 at 08:35:30, Uri Blass wrote:
>
>>I analyzed a position of arasan3 with latest version of movei and I get the
>>following analysis{34} {40} {44} is the selective depth:
>>
>>Qe4 is not mentioned as a solution and I wonder if it is a good alternative
>>solution:
>>
>>14 207 28521 54195832{ 34 } d3f5 b7b5 f5g4 h8g8 g2d5 b5c4 d5g8 a6a3 g4g7 a3d6 g
>>8c4 d6e7 g7g8 d8c7 c4a6
>>14 208 51404 97382425 d3e4
>>14 237 68447 128185107 d3e4
>>14 258 118575 217196891{ 40 } d3e4 d8e8 f2f4 e8f8 f4e5 c6e5 c4e5 a6d6 e5c4 d6c5
>> e4d5 d7d6 d5d6 c5d6 c4d6
>>14 258 120342 220767603{ 40 } d3e4 d8e8 f2f4 e8f8 f4e5 c6e5 c4e5 a6d6 e5c4 d6c5
>> e4d5 d7d6 d5d6 c5d6 c4d6
>>15 255 167787 306377970{ 44 } d3e4 d8e8 f2f4 e8f7 f4e5 h7h5 e4d5 f7f8 e5f6 g7f6
>> d5f5 h8h6 f5f4 f8g7 g2e4 b7b5
>>
>>Uri
>
>I forgot the diagram of the initial position and here it is
>
>[D]r1bk3r/pp1p2pp/q1nP1p2/4p3/2Np4/P2Q2P1/1R2PPBP/2R3K1 w - - 0 1
>
>Uri
I checked it with fruit1.5(same hash 64 mbytes) and it also supported the same
conclusion except the fact that fruit needed more time and more nodes and showed
bigger selective depth.
I wonder what extensions does Fruit do to get 59 plies of selective depth.
If someone is interested to change the code of Fruit1.5 to print the line when
it get 59 plies then it may be interesting to see the 59 ply line that Fruit
searches.
New game,
r1bk3r/pp1p2pp/q1nP1p2/4p3/2Np4/P2Q2P1/1R2PPBP/2R3K1 w - - 0 1
Analysis by Fruit 1.5:
1.Bd5 b5 2.Nd2
³ (-0.59) Depth: 3/9 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 b5 2.Nd2 Rb8
³ (-0.62) Depth: 5/15 00:00:00
1.Bd5 Qa4 2.Nd2 b6 3.e3 dxe3 4.fxe3
³ (-0.59) Depth: 5/15 00:00:00
1.Be4 h5 2.Qb3 h4 3.Rd2 hxg3 4.hxg3
³ (-0.57) Depth: 5/15 00:00:00
1.Be4 g6 2.Qd2 Re8 3.Rb3 b5
³ (-0.64) Depth: 6/18 00:00:00 79kN
1.f4 b5 2.Nd2 Rb8 3.Rc5 exf4 4.Rcxb5 Rxb5 5.Rxb5 fxg3 6.hxg3
³ (-0.52) Depth: 6/20 00:00:00 168kN
1.f4 b5 2.Nd2 Rb8 3.Rc5 exf4 4.Rcxb5 Rxb5 5.Rxb5 fxg3 6.hxg3
³ (-0.52) Depth: 7/20 00:00:00 210kN
1.f4 b5 2.Nd2 Rb8 3.Rc5 exf4 4.gxf4 b4
³ (-0.38) Depth: 8/22 00:00:01 323kN
1.Nxe5 fxe5 2.Qxa6 bxa6 3.Rxc6 dxc6 4.Bxc6 Bb7 5.Rxb7
³ (-0.27) Depth: 8/22 00:00:02 425kN
1.Nxe5 fxe5 2.Qxa6 bxa6 3.Rxc6 dxc6 4.Bxc6 Bb7 5.Rxb7
³ (-0.27) Depth: 9/22 00:00:02 464kN
1.Nxe5 fxe5 2.Qxa6 bxa6 3.Rxc6 dxc6 4.Bxc6 Bb7 5.Rxb7 Rc8
³ (-0.35) Depth: 10/28 00:00:04 1009kN
1.Be4 b5 2.Nd2 b4 3.axb4 Qxd3 4.Bxd3 Rb8 5.b5 Ba6
³ (-0.34) Depth: 10/33 00:00:08 2160kN
1.Be4 b5 2.Nd2 b4 3.axb4 Qxd3 4.Bxd3 Rb8 5.b5 Ba6 6.Kg2
= (-0.16) Depth: 11/33 00:00:17 5216kN
1.Nxe5 fxe5 2.Qe4 Re8 3.Qh4+ Ne7 4.dxe7+ Rxe7 5.Qxh7 Qxa3 6.Qg8+ Re8 7.Qxg7 Qxb2
8.Qg5+ Re7 9.Qg8+ Re8 10.Qg5+
= (0.00) Depth: 11/33 00:00:23 7325kN
1.Qf5 b5 2.Nxe5 Nxe5 3.Bxa8 d3 4.exd3 Qxa3 5.Rbc2 Ba6 6.d4
± (1.07) Depth: 11/36 00:01:05 22573kN
1.Qf5 b5 2.Nxe5 Nxe5 3.Bxa8 d3 4.exd3 Qxa3 5.Rbc2 Ba6 6.d4 Nc4
± (1.02) Depth: 12/38 00:01:28 30123kN
1.Qf5 b5 2.Qg4 Rg8 3.Bd5 bxc4 4.Bxg8 Qxa3 5.Qxg7 Qxd6 6.Bxc4 Qe7 7.Bf7
± (1.23) Depth: 13/43 00:02:28 51090kN
1.Qf5 b5 2.Qg4 Rg8 3.Bd5 bxc4 4.Bxg8 Qxa3 5.Qxg7 Qxd6 6.Rxc4 h5 7.Bf7 Na5
± (1.34) Depth: 14/48 00:04:11 85460kN
1.Qf5 b5 2.Qg4 Rg8 3.Bd5 bxc4 4.Bxg8 Qxa3 5.Qxg7 Qxd6 6.Rxc4 Ba6 7.Ra4 Rb8
8.Rxb8+ Nxb8 9.Bxh7 Bxe2 10.Rxa7
± (1.39) Depth: 15/54 00:08:08 167921kN
1.Qe4 Ke8 2.f4 Kf7 3.fxe5 h5 4.Qf4 Rh6 5.Bd5+ Kf8 6.exf6 Rxf6 7.Qg5 Nd8 8.Qxh5
Ne6
+- (1.57) Depth: 15/59 00:29:01 628050kN
(Blass, Tel-Aviv 23.06.2004)
Uri
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