Author: Martin Giepmans
Date: 14:28:26 01/06/02
Go up one level in this thread
On January 06, 2002 at 14:47:02, Uri Blass wrote:
>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
This made me curious.
Look:
05 00:00:00 + 1.24 D8xH8 F2-F4 E5-C4 D1-E2 B7-D5 B2-B3
06 00:00:00 + 1.29 D8xH8 F2-F4 E5-C4 F1-E1 C4xB2 D1-E2 A4-A3 B1xA3
07 00:00:00 + 1.24 D8xH8 F2-F4 E5-C4 D1-D3 D7-G4 F1-F2 G4-E6 G1-H1
08 00:00:05 + 1.45 D8xH8 F2-F3 H8-G8 G1-H1 F6-F5 B1-D2 E5-D3 D2-C4 D3-F4
00:00:07 + 1.61 D8-G8 F2-F3 E5xF3 F1xF3 D7-G4 D1-E2 B7xF3 E2xA6 F3-B7
A6-A7 G8xH8
00:00:08 + 2.25 B7-F3 D1-D4 D8-G8 H8-G7 G8xG7 G2-G3 F3-E2 B1-D2 E2xF1
A1xF1
08 00:00:09 + 3.81 B7-F3 D1-D4 D8-G8 F1-C1 F3xG2 B1-D2 G2-F3 H8-G7 G8xG7
G1-F1
09 00:00:19 + 4.55 B7-F3 G2xF3 D7-H3 H8-G7 E5xF3 D1xF3 H3xF3 B1-D2 F3-G4
G1-H1 G4xG7 A1-E1 E7-F8 F1-G1 G7-F7
09 00:00:20 + 4.55 B7-F3 G2xF3 D7-H3 H8-G7 E5xF3 D1xF3 H3xF3 B1-D2 F3-G4
G1-H1 G4xG7 A1-E1 E7-F8 F1-G1 G7-F7
00:00:44 + 5.99 E5-F3 G1-H1 D8-G8 B1-D2 F3xD2 F2-F3 D2xF1 D1xF1 G8xH8
A1-E1 H8-G8 G2-G3 F6-F5
10 00:01:15 + 6.08 E5-F3 G1-H1 D8-G8 B1-D2 F3xD2 F2-F3 D2xF1 D1xF1 G8xH8
A1-E1 H8-G8 F1-C4 G8-G5 E1-E6
11 00:03:56 + 6.10 E5-F3 G1-H1 D8-G8 B1-D2 F3xD2 F2-F3 D2xF1 D1xF1 G8xH8
F1-F2 H8-G8 A1-E1 B7-D5 F2-A7 D5xA2 A7xA6 C8-D8
00:05:08 + 6.47 B7-F3 B1-D2 F3xD1 H8xF6 E7xF6 A1xD1 D7-F5 D1-E1 E5-D3
E1-B1 C8-B7
Bf3 again, but ...
Martin
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