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Subject: Re: 52 minutes

Author: Uri Blass

Date: 00:37:34 11/25/01

Go up one level in this thread


On November 22, 2001 at 19:25:07, Gian-Carlo Pascutto wrote:

>On November 22, 2001 at 07:17:40, Uri Blass wrote:
>
>>>I see that sjeng only found a draw score for Nd5 and did not find the game move
>>>for white.
>>>
>>>If white is winning against Nd5 then the remaining question is how much time
>>>does sjeng need to find the win for white after Nd5(in the game white played
>>>Rad1 and not Bc1 in reply to Nd5).
>
>Sjeng: go
>Middlegame phase.
>Clearing hash...
>Time for move : 60000000
> 2    -459   277     1762  Be3 Nxe3 Rxe3 Bd7
> 2    -458   278     2504  Rac1 !
> 2    -429   279     3164  Rad1 !
> 2    -417   283     6925  Rad1 Kxh6 Qh3+ Kg6 Qxh2 Qxh2+ Kxh2
> 3    -417   284     8662  Rad1 Kxh6 Qh3+ Kg6 Qxh2 Qxh2+ Kxh2
> 3    -416   287    11525  Bxd5 !
> 3    -410   291    17017  Re4 !
> 3    -396   295    23192  Re4 Kxh6 Rh4+ Kg7 Bxd5
> 4    -418   300    30396  Re4 Kxh6 Qh3+ Kg7 Rg4+ Kh8 Qxh2 Qxh2+ Kxh2
> 4    -417   303    33208  Bxd5 !
> 4    -415   315    51792  Rad1 !
> 4    -390   347    95976  Bd2 !
> 4    -376   365   119421  Bc1 !
> 4    -366   367   122608  Bc1 !!
> 4    -284   372   132186  Bc1 Bf4 Bxd5 Bxc1 Be4+ f5 Raxc1 fxe4 Rxe4
> 4    -284   376   134722  Bc1 Bf4 Bxd5 Bxc1 Be4+ f5 Raxc1 fxe4 Rxe4
> 5    -284   391   157448  Bc1 Bf4 Bxd5 Bxc1 Be4+ f5 Raxc1 [Qxc3]
> 5    -283   450   252460  Bxd5 !
> 5    -254   457   266312  Bxd5 !!
> 5    -255   462   277805  Bxd5 ??
> 5    -334   505   358132  Bxd5 exd5 Bd2 Bf5 g3 Be4 Rxe4 dxe4 Qxe4+
> 5    -284   521   401894  Bc1 !
> 5    -284   521   401896  Bc1 <Bf4> <Bxd5> <Bxc1> <Be4+> <f5> <Raxc1> [Qxc3]
> 6    -254   552   455228  Bc1 !!
> 6    -248   577   505723  Bc1 Bf4 Qg4+ Kh6 Bxd5 Bxc1 Qh4+ Kg7 Bxb7
> 6    -247   597   546081  Bxd5 !
> 6    -245   867  1035505  Bxd5 Rxd5 Be3 h5 g3 Rf5 Qg2 h4 Qxh2 hxg3 fxg3
> 7    -215   949  1187608  Bxd5 !!
> 7    -216  1093  1452428  Bxd5 ??
> 7    -243  1697  2484938  Bxd5 Rxd5 Be3 h5 g3 Rf5 Qg2 h4 Bf4
> 7    -242  2330  3574075  Re4 !
> 7    -232  2625  4241498  Re4 Kxh6 Bxd5 Kg7 Rg4+ Kf8 Be4 Be5 Rg1 Ke8 Bxh7
> 8    -258  3516  5720790  Re4 Kxh6 Bxd5 Qe7 Qh3+ Kg7 Rh4 Qf6 Rxh7+ Kg8 Qxh2
>Rxd5
> 8    -257  3638  5971447  Bxd5 !
> 8    -202  3713  6158531  Bxd5 !!
> 8    -203  4528  7728129  Bxd5 ??
> 8    -203  6904 11682734  Bxd5 Rxd5 Bc1 Bd6 Qg4+ Kf6 c4 Rc5 Bh6 Ke7 Re4
> 8    -203  6904 11682777  Bxd5 Rxd5 Bc1 Bd6 Qg4+ Kf6 c4 Rc5 Bh6 Ke7 Re4
> 9    -233  7634 12842083  Bxd5 ??
> 9    -232 13126 21377126  Rad1 !
> 9    -173 16931 27655130  Rad1 !!
> 9    -173 18397 30055008  Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Re7
> 9    -173 22521 36839649  Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Re7
>10    -151 29328 49130161  Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Qd3 Qh4+
>Kg1
>10    -151 50618 85235629  Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Qd3 Qh4+
>Kg1
>11    -149 65336 111220034  Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Qd3 b6
>Bxd5 Qxb2
>11    -148 85131 146047849  Bc1 !
>11    -121 87818 151767050  Bc1 !!
>11       0 116457 204130006  Bc1 f5 g3 Bxg3 Rg1 Nf6 Rxg3+ Ng4 Rxg4+ fxg4 Qxg4+
>Kf7 Qh5+ Kg7 Qg5+ Kh8 Qf6 + Kg8 Qg5+ Kh8 <Qf6+>
>11       0 125711 218178396  Bc1 f5 g3 Bxg3 Rg1 Nf6 Rxg3+ Ng4 Rxg4+ fxg4 Qxg4+
>Kf7 Qh5+ Kg7 Qg5+ Kh8 Qf6 + Kg8 Qg5+ Kh8
>12     -30 138468 240381285  Bc1 ??
>12     -37 264485 460111883  Bc1 Bf4 Bxd5 Bxc1 Be4+ f5 Raxc1 fxe4 Qg4+ Kf7 Rxe4
>Rg8 Rf4+ Ke7 Qh4+ Ke8 Rd 1
>12     -37 306381 529082633  Bc1 Bf4 Bxd5 Bxc1 Be4+ f5 Raxc1 fxe4 Qg4+ Kf7 Rxe4
>Rg8 Rf4+ Ke7 Qh4+ Ke8 Rd 1
>13     -67 332504 573746702  Bc1 ??
>13     -66 660694 1157218145  Rad1 !
>13     -56 1102673 1914768481  Rad1 f5 Qh3 Bf4 g4 fxg4 Bc2+ Kf7 Qh5+ Ke7 Qh4+
>Ke8 Qh5+ Qf7 Qxf7+ Kxf7 Bx f4 Kg8 c4 Rf8
>14     -47 1744070 -1224056809  Rad1 f5 Bxd5 Rxd5 Rxd5 exd5 Qe3 Qd8 g3 d4 cxd4
>Bxg3 fxg3 Qd5+ Kg1 f4 Qxf 4 Bh3 Re7 Qxa2 Rxb7
>14     -46 2478800 63960834  Bc1 !
>14     -26 2554864 208591317  Bc1 !!
>
>--
>GCP

Gambittiger does not agree and say Rad1 is best

New position
[D]r1br4/1pq2p1p/p3p1kB/3n4/8/1BP2Q2/PP3PPb/R3R2K w - - 0 1

Analysis by Gambit Tiger 2.0:

2.Qh3 Bf4 3.Bc2+ f5 4.Bxf4 Qxf4 5.Kg1
  =  (-0.06)   Depth: 7   00:00:00  96kN
2.g3 Kxh6 3.c4 Ne7 4.Qf6+ Ng6 5.Kxh2
  =  (-0.08)   Depth: 7   00:00:00  145kN
2.g3 Kxh6 3.Bxd5 Rxd5 4.Qf6+ Kh5 5.g4+ Kxg4 6.Rg1+ Bxg1 7.Rxg1+ Kh5 8.Qf3+ Kh6
  ³  (-0.31)   Depth: 8   00:00:00  205kN
2.Bc1 Bf4 3.Bxd5 Bxc1 4.Be4+ f5 5.Raxc1 fxe4 6.Rxe4
  =  (0.00)   Depth: 8   00:00:02  525kN
2.Bc1 Bf4 3.Bxd5 Bxc1 4.Be4+ f5 5.Raxc1 fxe4 6.Rxe4
  =  (0.00)   Depth: 9   00:00:02  616kN
2.Bc1 Bf4 3.Bxd5 Bxc1 4.Be4+ f5 5.Raxc1 fxe4 6.Rxe4 Kg7 7.Rg4+ Kh8
  µ  (-0.76)   Depth: 10   00:00:05  1325kN
2.g3 Kxh6 3.Bxd5 Kg7 4.Be4 f5 5.Bc2 Rd2 6.Rac1 Rxc2 7.Rxc2
  ²  (0.46)   Depth: 10   00:00:08  1902kN
2.g3 Kxh6 3.Bxd5 Kg7 4.Be4 f5 5.Bd3 Bxg3 6.fxg3 Qc6 7.Qxc6 bxc6 8.Rad1
  ²  (0.30)   Depth: 11   00:00:16  3864kN
2.Bc1 Kg7 3.g3 Bxg3 4.Rg1 Kh8 5.Rxg3 Rg8 6.Bh6 Rxg3 7.fxg3
  ±  (1.02)   Depth: 11   00:00:30  7027kN
2.Bc1
  =  (0.12)   Depth: 12   00:01:50  26933kN
2.Bc1 Bf4 3.Bxd5 Bxc1 4.Be4+ f5 5.Raxc1 fxe4 6.Rxe4 e5 7.Rh4 Kg7 8.Qh5 Qe7
9.Qxh7+ Kf8
  =  (0.10)   Depth: 13   00:02:00  29329kN
2.Bc1 Bf4 3.Bxd5 Bxc1 4.Be4+ f5 5.Raxc1 fxe4 6.Rxe4 e5 7.Rh4 Kg7 8.Qh5 Qe7
9.Qxh7+ Kf8 10.Qh5
  =  (0.04)   Depth: 14   00:05:27  81847kN
2.Bc1 Bf4 3.Bxd5 Bxc1 4.Be4+ f5 5.Raxc1 fxe4 6.Rxe4 e5 7.Rce1 Qc6 8.Qg3+ Kf7
9.Rh4 Qe6 10.Rxh7+ Kf8
  ³  (-0.30)   Depth: 15   00:17:22  265554kN
2.g3 Kxh6 3.Bxd5 Kg7 4.Be4 f5 5.Bd3 Qc6 6.Qxc6 bxc6 7.Rad1 Rb8 8.b3 Bxg3 9.fxg3
  =  (0.14)   Depth: 15   00:22:59  349603kN
2.Rad1 Be5 3.Qh3 Bg7 4.Bxg7 Kxg7 5.Qg4+ Kf8 6.Qd4 f6 7.c4 e5 8.Qd2 Bg4 9.Qh6+
Qg7 10.Qxg7+ Kxg7
  ²  (0.32)   Depth: 15   00:51:18  799166kN
2.Rad1 Be5 3.Qh3 Bf4 4.Bxf4 Qxf4 5.c4 Kg7 6.Kg1 b5 7.cxd5 exd5 8.Qe3 Qxe3 9.Rxe3
Be6 10.Rde1
  ²  (0.34)   Depth: 16   01:12:10  1130369kN
2.Rad1 Be5 3.Bc1 f6 4.Qg4+ Kf7 5.f4 Bd6 6.Rxd5 Rg8 7.Qh5+ Kg7 8.Rdd1 Bd7 9.Bc2
f5 10.Be3 Bc6 11.Bd4+
  ±  (0.86)   Depth: 17   04:27:16  4276578kN
2.Rad1 Be5 3.Bc1 f6 4.Qg4+ Kf7 5.f4 Nxf4 6.Rxd8 Qxd8 7.Bxf4 Bxf4 8.Qxf4 Qe7
9.Qf5 Ke8 10.Bxe6 Bxe6
  ±  (1.00)   Depth: 18   11:44:47  11440947kN

(Blass, Tel-aviv 25.11.2001)

Uri



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