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Subject: Re: morphy's 17.QxB sac

Author: Chessfun

Date: 18:51:35 07/12/00

Go up one level in this thread


On July 12, 2000 at 19:39:37, walter irvin wrote:

>i was testing several programs in paulsen vs morphy  where morphy made the great
>sac 17.  QxB .i tested several programs ,hiarcs 7.32 1 min 23 sec was the best
>.crafty 16.6 did it in 3 min 50 sec ,strangly crafty 17.10 never found it in 10
>mins .junior 6 never found it in 18 mins!!fritz6 never found it in 3 min .all
>this was on a 300 mhz 64 meg hash .in the actual game morphy used 20 min .


I tried WbNimzo2000b, Junior 6a, Fritz 6a, Goliath Light, Hiarcs 7.32,
AnMon5.07, SOS and Fritz 5.32.

I gave each program 3 minutes on Cel 433, 48 meg hash tables.
Only Goliath Light 71 secs, Hiarcs 7.32 57 secs and Fritz 5.32 18 secs
found Qxf3. Now I will try some more Millennium programs to see if
Fritz 5.32's 18 secs can be beat. At 7 mins Fritz 5.32's score finally jumps
to 1.47 depth 15/39.

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by WbNimzo2000b:
1...Qxf3 2.gxf3
  =  (0.04)   Depth: 3   00:00:01
1...Qxf3 2.gxf3
  =  (0.04)   Depth: 5   00:00:02
1...Qxf3 2.gxf3
  =  (0.04)   Depth: 6   00:00:02  22kN
1...Qxa6
  =  (0.03)   Depth: 6   00:00:02  22kN
1...Qxa6 2.Rxa6 c5 3.Bd5 Bc8
  ³  (-0.57)   Depth: 6   00:00:02  22kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1
  ³  (-0.68)   Depth: 7   00:00:03  22kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra2 Bxf1 6.Kxf1
  µ  (-0.77)   Depth: 8   00:00:03  212kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Rxb6 axb6 6.Rd1 Ba4
  µ  (-1.01)   Depth: 9   00:00:04  654kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra1 cxb4 6.Rd1 b3
  µ  (-0.76)   Depth: 10   00:00:09  1870kN

(Bird, Scarb 12.07.2000)

4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by Junior 6.1:

1...Qxa6 2.Rxa6 Re1 3.Rxe1
  =  (-0.03)   Depth: 3   00:00:00
1...Qxa6 2.Rxa6 Re1 3.Ra1
  =  (0.07)   Depth: 6   00:00:00  2kN
1...Qd6 2.d4 Re1 3.Rxe1 Rxe1+
  =  (-0.02)   Depth: 6   00:00:00  9kN
1...Qd6 2.d4 h6 3.Bd2 Kh7
  ²  (0.46)   Depth: 9   00:00:00  57kN
1...Rd6 2.Qxd3 Rxd3 3.Ba3 Be6 4.Bxc6 Red8 5.Rc2 Rxd2 6.Rxd2
  =  (0.12)   Depth: 9   00:00:00  89kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra1 b3
  ³  (-0.30)   Depth: 9   00:00:00  107kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra2 Bxf1 6.Kxf1 cxb4 7.cxb4 Bd4
  ³  (-0.27)   Depth: 12   00:00:03  451kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.cxb4 Bb5 5.Bxe6 Bxa6 6.Bd7 Re5 7.Rd1 Re2 8.d4
Kf8
  ³  (-0.46)   Depth: 14   00:00:21  4926kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra1 Bb5 6.cxb4 Bxf2+ 7.Kxf2 Rf6+
8.Ke3 Rxf1 9.Bb2 Rxa1 10.Bxa1
  ³  (-0.49)   Depth: 16   00:00:55  13213kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra2 c5 6.d4 bxc3 7.d5 Re5 8.Rd1 a5
9.Kf1
  ³  (-0.38)   Depth: 17   00:02:40  40212kN

(Bird, Scarb 12.07.2000)

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by Fritz 6:
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.cxb4 Bb5 5.Bxe6 Bxa6 6.Bd7
  µ  (-0.75)   Depth: 9/23   00:00:02  540kN
1...Qxa6--
  ³  (-0.44)   Depth: 10/23   00:00:02  695kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra2 c5
  ³  (-0.41)   Depth: 10/23   00:00:03  796kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.cxb4 Bxf2+ 6.Kxf2
  ³  (-0.53)   Depth: 11/24   00:00:06  1739kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.cxb4 Bxf2+ 6.Kxf2
  µ  (-0.72)   Depth: 12/26   00:00:15  4389kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.cxb4 Bxf2+ 6.Rxf2
  µ  (-0.75)   Depth: 13/30   00:00:53  14662kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra2 Bb5 6.Rd1
  µ  (-0.72)   Depth: 14/31   00:02:44  45673kN

(Bird, Scarb 12.07.2000)

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by Goliath Light:
1...Qf5 2.d4 c5 3.d5 Rd6
  ²  (0.56)   Depth: 8/24   00:00:01  422kN
1...Qf5 2.d4 Re1 3.Kh1 Rxf1+ 4.Qxf1 a5 5.Ba3 axb4 6.Bxb4
  ²  (0.57)   Depth: 8/24   00:00:01  466kN
1...Qxa6
  ²  (0.43)   Depth: 8/24   00:00:01  468kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4
  =  (-0.06)   Depth: 8/24   00:00:02  699kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4
  =  (-0.06)   Depth: 9/27   00:00:03  1161kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4 Re4 8.b5
  =  (-0.16)   Depth: 9/27   00:00:04  1661kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4 Re4 8.b5
  =  (-0.16)   Depth: 10/27   00:00:06  4121kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4 Re4 8.Ra4
g6
  ³  (-0.32)   Depth: 10/28   00:00:10  6147kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4 Re4 8.Ra4
g6
  ³  (-0.32)   Depth: 11/31   00:00:20  15345kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3 Bxf1 6.Kxf1 cxb4 7.cxb4 f5 8.d3
Kf7 9.Be3 Bxe3 10.fxe3 Rxe3 11.Rxa7
  ³  (-0.40)   Depth: 11/31   00:00:30  20817kN
1...Qxf3
  ³  (-0.51)   Depth: 11/37   00:01:11  55911kN
1...Qxf3 2.gxf3
  µ  (-1.27)   Depth: 11/39   00:01:33  70712kN
1...Qxf3 2.gxf3
  µ  (-1.27)   Depth: 12/39   00:01:55  87475kN

(Bird, Scarb 12.07.2000)

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by Hiarcs 7.32:

1...Qb5 2.Bg4 R6e7 3.Bxd7 Rxd7 4.d4 Rde7
  ²  (0.52)   Depth: 5/19   00:00:01  25kN
1...Rd6 2.Qxd3 Rxd3 3.Ba3 Be6 4.Rc2 Bd5
  ²  (0.48)   Depth: 5/21   00:00:01  34kN
1...Qb1 2.Rb2 Qf5 3.d4 Qb5 4.Ra2 Re1
  =  (0.18)   Depth: 5/21   00:00:02  50kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 Bg2+ 5.Kg1 Bh3+ 6.Kh1
  =  (0.00)   Depth: 5/21   00:00:02  52kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Qc4+ Kh8 6.Qf7 Bg2+ 7.Kg1 Bh3+ 8.Kh1
  =  (0.00)   Depth: 6/21   00:00:02  80kN
1...Qxa6 2.Rxa6
  =  (-0.10)   Depth: 6/23   00:00:04  141kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4
  =  (-0.12)   Depth: 6/23   00:00:04  157kN
1...Qxa6 2.Rxa6
  ³  (-0.37)   Depth: 7/23   00:00:05  202kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra1 Bb5 6.Rd1
  ³  (-0.41)   Depth: 7/23   00:00:05  219kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra2 Bb5 6.cxb4 Bxf1
  ³  (-0.53)   Depth: 8/25   00:00:11  455kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6 5.Ra1 Bb5 6.Rd1 a5 7.Bb2
  ³  (-0.31)   Depth: 9/27   00:00:33  1342kN
1...Qxf3 2.gxf3
  µ  (-0.78)   Depth: 9/29   00:00:57  2384kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Qc4+ Kf8 6.Qh4 Bxf1 7.h3 Rh6 8.Qg5
Bxh3
  µ  (-1.30)   Depth: 9/29   00:01:16  3284kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Rd1 Bxf2 6.Qf1 Bxf1 7.Rxf1 Re2 8.Ra5
Rg5
  µ  (-1.34)   Depth: 10/29   00:02:23  6458kN

(Bird, Scarb 12.07.2000)

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by SOS:

1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.Bxe6 Rxe6
  =  (0.11)   Depth: 6/21   00:00:01  113kN
1...Qxa6 2.Rxa6 c5 3.Bg4 cxb4 4.h4 bxc3
  =  (0.11)   Depth: 7/21   00:00:01  121kN
1...Qxa6 2.Rxa6 Re1 3.d3 c5 4.Be4 Rxf1+ 5.Kxf1 cxb4 6.cxb4
  =  (-0.15)   Depth: 8/23   00:00:04  338kN
1...Qxa6 2.Rxa6 Re1 3.d3 c5 4.Be4 Rxf1+ 5.Kxf1 cxb4 6.g3
  =  (-0.15)   Depth: 9/27   00:00:07  663kN
1...Qxa6 2.Rxa6 c5 3.bxc5 Re1 4.Bc6 Rxf1+
  =  (-0.19)   Depth: 9/27   00:00:08  790kN
1...Qxa6 2.Rxa6 c5 3.bxc5 Bb5 4.cxb6 Bxa6 5.Bd1
  ³  (-0.45)   Depth: 10/27   00:00:14  1551kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra1 Bxf1 6.Ra3
  ³  (-0.49)   Depth: 11/29   00:00:24  2830kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra2 cxb4 6.d3 bxc3 7.Rd1
  ³  (-0.54)   Depth: 11/29   00:00:26  3083kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra2 cxb4 6.Rd1 b3
  ³  (-0.54)   Depth: 12/32   00:00:56  6944kN

(Bird, Scarb 12.07.2000)

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by AnMon 5.07:

1...Qxa6 2.Rxa6 Re1 3.d3 Rxf1+ 4.Kxf1 c5 5.g3
  ²  (0.34)   Depth: 6   00:00:01  24kN
1...Qxa6 2.Rxa6 Re1 3.Ra1
  =  (0.13)   Depth: 6   00:00:01  24kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Ra5 Bxa5 5.Bxe6
  =  (0.12)   Depth: 7   00:00:01  80kN
1...Qxa6 2.Rxa6 c5 3.Bg4
  ³  (-0.33)   Depth: 7   00:00:02  80kN
1...Qxa6 2.Rxa6 Bc8 3.Ra4 Be3
  ³  (-0.32)   Depth: 8   00:00:03  148kN
1...Qxa6 2.Rxa6 Re1 3.Ba3 Rxf1+ 4.Kxf1 c5 5.bxc5
  =  (0.06)   Depth: 8   00:00:03  216kN
1...Qxa6 2.Rxa6 c5 3.Kh1 Bb5 4.Ra3
  =  (0.05)   Depth: 9   00:00:06  376kN
1...Qxa6 2.Rxa6 Re1 3.Bb2 c5 4.Ra1 a6
  ³  (-0.44)   Depth: 9   00:00:08  540kN
1...Qxa6 2.Rxa6 c5 3.bxc5 Bb5 4.Rd1 Bxa6 5.Rf1
  ³  (-0.45)   Depth: 10   00:00:13  1040kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra3
  ³  (-0.48)   Depth: 10   00:00:15  1120kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 cxb4 5.cxb4
  ³  (-0.47)   Depth: 11   00:01:09  5378kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.d4 cxb4 5.Ra1
  ³  (-0.42)   Depth: 11   00:01:15  5818kN

(Bird, Scarb 12.07.2000)

New position
4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - 0 1

Analysis by Fritz 5.32:

1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Rxb6 axb6
  ³  (-0.53)   Depth: 7/18   00:00:01  100kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Rxb6 axb6
  ³  (-0.53)   Depth: 8/21   00:00:01  158kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra1 Bxf1 6.Kxf1
  ³  (-0.56)   Depth: 9/20   00:00:02  433kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra1 Bxf1 6.bxc5
  ³  (-0.47)   Depth: 10/24   00:00:03  788kN
1...Qxa6 2.Rxa6 c5 3.Bg4 Bb5 4.Bxe6 Rxe6 5.Ra1 Bxf1 6.Kxf1
  ³  (-0.59)   Depth: 11/26   00:00:09  2964kN
1...Qxf3
  ³  (-0.63)   Depth: 11/29   00:00:18  6190kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Rd1 Bxf2 6.Qc4+
  -+  (-1.44)   Depth: 11/31   00:00:21  7378kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Rd1 Bxf2 6.Qf1
  µ  (-1.22)   Depth: 12/31   00:00:25  8690kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Rd1 Bxf2 6.Qf1
  µ  (-1.19)   Depth: 13/32   00:00:47  16338kN
1...Qxf3 2.gxf3 Rg6+ 3.Kh1 Bh3 4.Qd3 f5 5.Rd1 Bxf2 6.Qc4+
  µ  (-1.16)   Depth: 14/34   00:02:10  45490kN

(Bird, Scarb 12.07.2000)

Thanks.



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