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Subject: Re: Which engine finds Ng5+ ?

Author: Eduard Nemeth

Date: 05:50:57 09/01/02

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On September 01, 2002 at 00:18:00, Steffen Jakob wrote:

>Hi,
>
>usually programmers don't post positions of their own games (except Vincent ;)
>for good reasons. Yesterday I played a bullet (!) game at ICC in which I saced a
>knight which won that game. After the game I wanted to find out if this was
>correct. Usually this isn't the case. Fritz didn't consider my move, but after a
>post mortem analysis (also with the help of Alex Kure) I think that Ng5+ leads
>to the most convincing winning line in this positions.
>
>Please start your engines/brains, gentlemen!
>
>[D]r1b2r2/pp1p1p1k/1qn2Ppp/5p2/3p4/3B1N2/PPPQ1PPP/R3R1K1 w - - 0 1
>
>Here is the analysis:
>
>[Event "ICC 1 0"]
>[Site "Internet Chess Club"]
>[Date "2002.08.31"]
>[White "Yobes"]
>[Black "N.N."]
>[Result "1-0"]
>[ICCResult "Black checkmated"]
>[WhiteElo "1603"]
>[BlackElo "1503"]
>[Opening "Robatsch (modern) defense"]
>[SetUp "1"]
>[FEN "r1b2r2/pp1p1p1k/1qn2Ppp/5p2/3p4/3B1N2/PPPQ1PPP/R3R1K1 w - - 0 1"]
>[Time "14:44:28"]
>[TimeControl "60+0"]
>
>1. Ng5+ hxg5 (1... Kg8 2. Nxf7 Kxf7 (2... Rxf7 3. Qxh6 Qd8 4. Qxg6+ Kf8 5. Qh6+
>Kg8 6. Bc4 $18) 3. Qxh6 Rg8 4. Bc4+ $18) 2. Qxg5 Nb4 (2... Rh8 {This move was
>played in the actual game.} 3. Qh4+ Kg8 4.
>Re8#) (2... d5 3. Qh4+ Kg8 4. Qh6 $18) (2... Nd8 3. Bxf5 Ne6 4. Qh4+ Kg8 5. Qh6
>$18) (2... Qd8 3. Bxf5 Rh8 4. Re4 Kg8 5. Bxg6 $18) 3. Re5 {
>The threat is Qh4+ Kg8 Rxf5.} Nxd3 (3... d5 4. Bxf5 Bxf5 5. Qh4+ Kg8 6. Rxf5
>$18) 4. Qh4+ Kg8 5. Rxf5 Nc5 6. Rh5 $18 1-0
>
>Greetings,
>Steffen.

Please:

Neue Partie
r1b2r2/pp1p1p1k/1qn2Ppp/5p2/3p4/3B1N2/PPPQ1PPP/R3R1K1 w - - 0 1

Analysis by WBNimzo2000b on P600 with 32 Mb hash (My Settings):

1.Df4 d5 2.Dh4 h5 3.g4 Kg8 4.gxh5
  +-  (1.52)   Tiefe: 14   00:07:52  175714kN
1.Df4 Dd8 2.Dd6 Dxf6 3.Dxf6 Se7
  +-  (1.75)   Tiefe: 15   00:48:23  1128309kN
1.Sg5+
  +-  (1.76)   Tiefe: 15   01:02:48  1487215kN
1.Sg5+ hxg5 2.Dxg5 Sb4 3.Te5 Sxd3 4.Dh4+ Kg8 5.Txf5 Sb4 6.Dh6
  +-  (3.98)   Tiefe: 15   01:20:47  1930591kN

(Nemeth, Stuttgart 01.09.2002)




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