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Subject: Re: A Move By Capablanca - 1928

Author: Uri Blass

Date: 11:47:02 01/06/02

Go up one level in this thread


On January 06, 2002 at 13:54:34, Robert Basham wrote:

>>>>Every engine out there plays ...Bf3! <<<
>
>Maybe so, but I have some Novag machines that play Nf3+...:-)
>
>Robert

both moves are winning and I see no reason to prefer Bf3

Here is Deep Fritz's opinion that changes it's mind in some minutes from Bf3 to
Nf3+

New position
2kr3B/1bpqb2p/p2p1p2/4n3/p7/2P5/PP3PPP/RN1Q1RK1 b - - 0 1

Analysis by Deep Fritz:

1...Rxh8 2.Re1
  µ  (-0.88)   Depth: 2/5   00:00:00
1...Qc6 2.f3
  µ  (-1.16)   Depth: 2/6   00:00:00
1...Qc6 2.f3
  µ  (-1.16)   Depth: 2/6   00:00:00
1...Qc6 2.f3
  µ  (-1.16)   Depth: 2/6   00:00:00
1...Qc6 2.f3
  µ  (-1.16)   Depth: 2/6   00:00:00
1...Qc6 2.f3 Rxh8
  µ  (-1.16)   Depth: 3/6   00:00:00
1...Qc6 2.f3 Rxh8 3.b4
  µ  (-1.19)   Depth: 4/10   00:00:00  1kN
1...Qc6 2.f3 Rxh8 3.Qc2 d5
  µ  (-1.25)   Depth: 5/13   00:00:00  4kN
1...Rxh8!
  µ  (-1.28)   Depth: 5/16   00:00:00  6kN
1...Rxh8! 2.Qh5 Nd3 3.Qe2
  µ  (-1.38)   Depth: 5/18   00:00:00  10kN
1...Rxh8 2.f3 Qb5 3.b4 Re8 4.Re1
  µ  (-1.31)   Depth: 6/19   00:00:00  21kN
1...Rxh8 2.f3 Rg8 3.Nd2 Qh3 4.Qe2 a3 5.bxa3
  -+  (-1.41)   Depth: 7/23   00:00:01  63kN
1...Bf3!
  -+  (-1.44)   Depth: 7/23   00:00:01  98kN
1...Bf3! 2.gxf3 Qh3 3.Bg7
  -+  (-2.09)   Depth: 7/23   00:00:01  119kN
1...Bf3!
  -+  (-2.41)   Depth: 8/22   00:00:01  144kN
1...Bf3! 2.gxf3 Qh3 3.Qd5 c6 4.Qxe5 fxe5 5.Bg7
  -+  (-2.69)   Depth: 8/24   00:00:01  187kN
1...Bf3!
  -+  (-3.00)   Depth: 9/23   00:00:01  339kN
1...Bf3! 2.gxf3 Qh3 3.Qd5 Nxf3+ 4.Qxf3 Qxf3 5.Re1 Rg8+ 6.Bg7 Rxg7+ 7.Kf1
  -+  (-5.09)   Depth: 9/28   00:00:02  534kN
1...Bf3!
  -+  (-5.41)   Depth: 10/24   00:00:02  878kN
1...Bf3! 2.gxf3 Qh3 3.Qd5 c6 4.Qxe5 fxe5 5.Bg7 Rg8 6.Nd2
  -+  (-5.50)   Depth: 10/26   00:00:02  944kN
1...Bf3!
  -+  (-5.81)   Depth: 11/28   00:00:03  1791kN
1...Bf3! 2.Nd2 Bxd1 3.Bxf6 Nf3+ 4.Kh1 Bxf6 5.Raxd1 Nxd2 6.Rxd2 a3 7.Rc1
  -+  (-6.59)   Depth: 11/29   00:00:05  3051kN
1...Bf3 2.Nd2 Bxd1 3.Rfxd1 Rxh8 4.Nf1 Qb5 5.Rab1 Qc4 6.Ra1 a3 7.Ne3
  -+  (-6.81)   Depth: 12/34   00:00:10  6506kN
1...Bf3 2.Nd2 Bxd1 3.Rfxd1 Rxh8 4.Nf1 Rg8 5.Ng3 a3 6.bxa3 d5 7.Rab1
  -+  (-6.81)   Depth: 13/33   00:00:19  12793kN
1...Bf3 2.Nd2 Bxd1 3.Rfxd1 Rxh8 4.Nf1 Rg8 5.Ng3 f5 6.Rd4 Rg4 7.Rd5
  -+  (-6.84)   Depth: 14/37   00:00:45  32347kN
1...Bf3 2.Nd2 Bxd1 3.Rfxd1 Rxh8 4.Nf1 Rg8 5.Ng3 d5 6.Rab1 Kd8 7.Kh1
  -+  (-6.94)   Depth: 15/42   00:02:24  106083kN
1...Nf3+!
  -+  (-6.97)   Depth: 15/42   00:04:34  200660kN
1...Nf3+! 2.Qxf3 Bxf3 3.Nd2 Bb7 4.Rfe1 Rxh8 5.Re2 a3 6.bxa3 Qc6 7.f3
  -+  (-7.09)   Depth: 15/42   00:06:18  276261kN
1...Nf3+ 2.Qxf3 Bxf3 3.Nd2 Bb7 4.Rfe1 Rxh8 5.f3 Re8 6.Rab1 d5 7.Red1
  -+  (-7.16)   Depth: 16/40   00:08:16  361576kN

(Blass, Tel-aviv 06.01.2002)

Uri



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