Author: Martin Giepmans
Date: 17:01:20 12/20/02
Go up one level in this thread
On December 20, 2002 at 18:44:13, Roy Eassa wrote:
>On December 20, 2002 at 18:39:33, Roy Eassa wrote:
>
>>On December 20, 2002 at 16:34:03, Martin Giepmans wrote:
>>
>>>On December 20, 2002 at 13:21:14, Roy Eassa wrote:
>>>
>>>>On December 20, 2002 at 13:13:28, Art Basham wrote:
>>>>
>>>>>Here are the first three moves of this great combination...
>>>>>
>>>>>1. h4 x g6 if h7 x g6,
>>>>>
>>>>>2. e3 x f5 if f8 x f5,
>>>>>
>>>>>3. c2 x f5+ and mates in 11...!
>>>>>
>>>>>[D]2r2rn1/p3q1bk/n2p2pp/1b1PPp2/1pp2P1N/1P2N1P1/P1QB2BP/4RRK1 w - - 0 1
>>>>>
>>>>>from the book.."Your Move"...by Neishtadt
>>>>
>>>>
>>>>Definitely the best win, but not the only one:
>>>
>>>?? Are my eyes that bad? I don't see any difference ;)
>>
>>
>>Do you mean between the 2 winning lines? The main line wins very decisively in
>>all variation (Black cannot decline the sacrifice without being wiped out),
>>whereas the secondary line gives White a smaller advantage if Black plays well,
>>e.g.:
>>
>>1.Nhxf5 cxb3 2.Qe4 Nc5 3.Nxe7 Nxe4 4.Nxc8 Nxd2 5.Nxd6 Nxf1 6.Nxf1 Bxf1
>>7.Bxf1 bxa2 8.Bc4
>>
>>
>
>
>Here's Black's best defense (I think) in the main line:
>
>1.Nxg6! cxb3 2.Nxf8+ Qxf8 3.Qxf5+ Qxf5 4.Nxf5 Bxf1 5.Bxf1 Rc2 6.Be3 dxe5 +-
>
Looks convincing. SpiderChess found the same pv at 4:37 :
10 0:04:24 + 2.68 H4xG6 C4xB3 G6xF8 E7xF8 C2xF5 F8xF5 E3xF5 B5xF1 G2xF1 C8-C2
A2xB3 C2xD2 F1xA6 D6xE5 F5xG7 H7xG7 E1xE5
10 0:04:37 + 3.05 H4xG6 C4xB3 G6xF8 E7xF8 C2xF5 F8xF5 E3xF5 B5xF1 G2xF1 C8-C2
D2-E3 D6xE5 F1-D3 C2-C3 D3xA6 B3xA2 F4xE5 G7xE5 E3xA7
>White's advantage is less than if Black captured the knight, but still more than
>in the line above.
>
>
>>
>>>
>>>>
>>>>1.Nxg6!
>>>>
>>>> [1.Nhxf5 cxb3 2.Qe4 also wins]
>>>>
>>>>1...Kxg6 2.Nxf5! Rxf5
>>>>
>>>> [2...Kf7 3.Nxe7 +-]
>>>>
>>>> [2...Qd7 3.Nh4+ Kf7 4.e6+ +-]
>>>>
>>>>3.Qxf5+ Kxf5 4.Be4+ Kg4 5.h3+ Kxg3
>>>>
>>>> [5...Kh5 6.g4+ Kh4 7.Re3 and mate next move]
>>>>
>>>>6.Re3+ Kh4 7.Bg6! Qg5+ 8.fxg5 Rf8
>>>>
>>>> [8...Kxg5 9.Rg3+ Kh4 10.Be1 and mates in 2]
>>>>
>>>>9.Be1+ Rf2 10.Re4+ Kxh3 11.Bxf2 and mate in 2
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