Author: Kurt Utzinger
Date: 15:01:39 02/27/03
Go up one level in this thread
On February 27, 2003 at 17:51:17, Art Basham wrote:
>In this game black played ....Nxh3+
>and went on to win....
>
>[D]2r1r1k1/pp1q1pp1/3b3p/8/3Npn1B/P6P/1P3PP1/R2QR1K1 b - - 0 1
>
>I wonder how the new programs find this winning combination and knight
>sacrifice?
I am not sure if this is a good test move. Most probably ... Nd3! is even
stronger than .... Nxh3+
Kurt
New game
2r1r1k1/pp1q1pp1/3b3p/8/3Npn1B/P6P/1P3PP1/R2QR1K1 b - - 0 1
Analysis by Shredder 7:
1...Qg4 2.Qxg4
+- (9.19) Depth: 1/2 00:00:00
+- (9.98) Depth: 1/2 00:00:00
1...Nd3 2.Re2 g5 3.Qd2 gxh4 4.Qxh6
µ (-1.37) Depth: 1/2 00:00:00
-+ (-3.13) Depth: 5/11 00:00:00
1...Nxh3+ 2.gxh3 Qxh3 3.Bg3 Bxg3 4.fxg3 Qxg3+ 5.Kf1 Qf4+ 6.Kg1 e3
-+ (-3.14) Depth: 5/14 00:00:00
-+ (-3.24) Depth: 6/16 00:00:00
1...Nd3 2.Rf1 g5 3.Bxg5 hxg5 4.Qh5 Bf4 5.Ne2 Qd6 6.Nxf4 Qxf4
-+ (-3.25) Depth: 6/16 00:00:00
-+ (-4.21) Depth: 10/23 00:00:04 1024kN
1...Nxh3+ 2.Kh1 Bc5 3.Kh2 Bxd4 4.gxh3 Qd6+ 5.Bg3 Qf6 6.Qe2 Bxb2 7.Rab1 Bc3
-+ (-4.22) Depth: 10/30 00:00:06 1563kN
-+ (-4.20) Depth: 11/29 00:00:21 5188kN
1...Nd3 2.Rf1 g5 3.Qh5 Be7 4.Ne2 gxh4 5.Qxh6 Rc2 6.Nc3 Qd6 7.Qh5 Qf4
-+ (-4.21) Depth: 11/29 00:00:23 5675kN
-+ (-4.42) Depth: 12/30 00:00:40 9927kN
(Utzinger, MyTown 28.02.2003)
New game
2r1r1k1/pp1q1pp1/3b3p/8/3Npn1B/P6P/1P3PP1/R2QR1K1 b - - 0 1
Analysis by Junior 7:
1...e3 2.Rxe3 Rxe3
µ (-1.04) Depth: 3 00:00:00
1...h5 2.Rc1 Rxc1
µ (-1.34) Depth: 3 00:00:00
1...b6 2.Rc1 Rxc1
µ (-1.40) Depth: 3 00:00:00
1...a5 2.Rc1 Rxc1
-+ (-1.43) Depth: 3 00:00:00
1...Nd3 2.Qg4 Qxg4 3.hxg4 Nxe1 4.Rxe1 a6 5.a4
-+ (-1.65) Depth: 3 00:00:00
-+ (-2.34) Depth: 9 00:00:00 195kN
1...Ng6 2.Bg3 Bxg3 3.fxg3 Rcd8 4.Nb3 Qc7 5.Qc1 Qxg3 6.Qe3 Qxe3+
-+ (-2.37) Depth: 9 00:00:00 268kN
-+ (-2.21) Depth: 12 00:00:01 1294kN
1...Nxh3+ 2.Kf1 Rc5 3.Ne2 e3 4.Nc3 Rce5 5.Rxe3 Nxf2 6.Bxf2 Rxe3 7.Bxe3
-+ (-2.38) Depth: 12 00:00:03 3712kN
-+ (-2.34) Depth: 15 00:00:40 39696kN
(Utzinger, MyTown 27.02.2003)
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