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Subject: Re: test position. mate in 11

Author: Uri Blass

Date: 03:02:30 10/07/01

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On October 06, 2001 at 23:07:51, K. Burcham wrote:

>
>bruce posted a position similiar to this, i modified it for a mate in 11.
>can your program see this mate in 11.
>slate if you read this, will you post your analysis.
>
>
> [D] 7b/q7/Pk3p1P/1Pp2pB1/K1P2P2/1Q6/8/8 w - - 0 1
>
>
>kburcham

No
It cannot see mate in an hour

New position
[D]7b/q7/Pk3p1P/1Pp2pB1/K1P2P2/1Q6/8/8 w - - 0 1

Analysis by Junior 7:

1.Bxf6 Bxf6 2.Qf3
  ±  (1.12)   Depth: 3   00:00:00
1.Bh4 Qd7
  +-  (2.86)   Depth: 3   00:00:00
1.Bh4 Qe7 2.Qf3 Qe4
  +-  (2.93)   Depth: 6   00:00:00  2kN
1.Qf3 Qc7 2.Bh4 Qd7 3.Bf2
  +-  (3.13)   Depth: 6   00:00:00  7kN
1.Qf3 Qd7 2.Bh4 Ka7 3.Bf2 Kb6 4.Qg2
  +-  (3.22)   Depth: 9   00:00:00  38kN
1.Qd3 Qc7 2.Bh4 Qe7 3.Qd1 Qc7
  +-  (3.25)   Depth: 9   00:00:00  137kN
1.Qc3!
  +-  (3.43)   Depth: 9   00:00:00  177kN
1.Qc3! Qf7 2.Qa5+ Ka7 3.b6+ Kb8 4.a7+ Ka8 5.Qb5 Kb7 6.Bh4
  +-  (3.55)   Depth: 9   00:00:00  237kN
1.Qc3!
  +-  (3.85)   Depth: 12   00:00:01  776kN
1.Qc3! Qd7 2.Bxf6 Bxf6 3.Qxf6+ Ka7 4.Qa1 Kb6 5.Qh1 Qh7
  +-  (3.94)   Depth: 12   00:00:02  1524kN
1.Qc3!
  +-  (4.24)   Depth: 15   00:00:05  4421kN
1.Qc3! Qd7 2.Bxf6 Bxf6 3.Qxf6+ Ka7 4.Qa1 Kb6 5.Qh1 Qf7 6.Qc6+ Ka7 7.Qb7+ Qxb7
8.axb7 Kxb7 9.h7 Kc8 10.h8Q+
  +-  (7.25)   Depth: 15   00:00:15  12410kN, tb=1
1.Qc3!
  +-  (7.55)   Depth: 17   00:00:30  23151kN, tb=14
1.Qc3!
  +-  (7.85)   Depth: 19   00:01:33  61019kN, tb=88
1.Qc3! Qd7 2.Bxf6 Bxf6 3.Qxf6+ Ka7 4.Qa1 Kb6 5.Qh1 Ka7 6.h7 Qc7 7.Kb3 Qb8 8.h8Q
Qxf4
  +-  (8.05)   Depth: 19   00:02:26  90447kN, tb=647
1.Qc3!
  +-  (8.35)   Depth: 20   00:03:57  148881kN, tb=744
1.Qc3!
  +-  (8.65)   Depth: 21   00:07:06  263940kN, tb=1109
1.Qd3!
  +-  (8.85)   Depth: 21   00:08:39  308644kN, tb=2104
1.Qd3!
  +-  (9.15)   Depth: 22   00:24:13  971294kN, tb=4737
1.Qd3! Kc7 2.Qxf5 Qa8 3.Bxf6 Bxf6 4.Qxf6 Qh1 5.b6+ Kd7 6.Qf7+ Kd6 7.Qd5+ Qxd5
  +-  (14.43)   Depth: 22   00:49:31  2052597kN, tb=12730
1.Qd3!
  +-  (14.73)   Depth: 23   00:57:43  2396215kN, tb=15065

(Blass, Tel-aviv 07.10.2001)

Uri

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