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Subject: Re: Junior 8 blunder on Kurt Utzinger's tournament

Author: Uri Blass

Date: 11:21:02 07/02/03

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On July 02, 2003 at 13:46:55, Mihaly Szalai wrote:

>It's not just the opening book...
>
>Junior 8 - TK 3.23 SKR
>[D]r1b1k2r/pp4bp/2p2n2/3p2p1/8/q1NBPNP1/P1PK1PP1/1R1Q3R w kq - 0 1
>
>Junior 8 played 15.Ng5 and lost.
>What do you think of this?
>
>
>Analysis by Crafty 19.03:
>
>1. µ (-0.93): 15.Rb3 Qa5 16.Ne5 g4 17.f3 Ne4+ 18.fxe4 Bxe5 19.exd5 Bxc3+ 20.Rxc3
>Qxd5 21.Kc1 Be6
>2. µ (-0.85): 15.Nd4 Qc5 16.Rb3 Ng4 17.Rxh7 Rxh7 18.Bxh7 Bxd4 19.exd4 Qxd4+
>20.Kc1 Qxf2 21.Bg6+ Kd8
>3. µ (-1.08): 15.Ne5 Qa5 16.f4 Ng4 17.Bxh7 Nxe5 18.fxe5 Bxe5 19.Qh5+ Kd7 20.Bf5+
>Kd6 21.Qg6+ Kc7 22.Rxh8 Bxh8
>4. -+ (-1.55): 15.Qc1 Qa5 16.Nd4 Ne4+ 17.Bxe4 dxe4 18.Qb2 a6 19.Qb6 Qe5 20.Ke2
>0-0
>
>(Szalai, MyTown 02.07.2003)

Avoiding Nxg5 is a simple tactics
New game
r1b1k2r/pp4bp/2p2n2/3p2p1/8/q1NBPNP1/P1PK1PP1/1R1Q3R w kq - 0 1

Analysis by Junior 7:

1.e4 dxe4 2.Nxe4
  ³  (-0.47)   Depth: 3   00:00:00
1.g4 Nxg4
  ³  (-0.43)   Depth: 3   00:00:00
1.Ne5 Qa5
  =  (-0.18)   Depth: 3   00:00:00
1.Nxg5 Bg4 2.f3
  ²  (0.37)   Depth: 3   00:00:00
1.Nxg5 Ng4 2.Rb3 Qa5 3.Bxh7 Nxf2 4.Qh5+ Kf8
  ²  (0.51)   Depth: 6   00:00:00  14kN
1.Nxg5 Qa5 2.Qe2 Ne4+ 3.Bxe4 Qxc3+ 4.Kd1 dxe4 5.Qh5+ Kd8 6.Nf7+ Kc7 7.Nxh8
  ³  (-0.33)   Depth: 9   00:00:00  406kN
1.Rb3 Qa5 2.Kc1 Bg4 3.Qe1 Bxf3 4.gxf3 b5
  =  (-0.02)   Depth: 9   00:00:01  613kN
1.Rb3 Qa5 2.Kc1 g4 3.Nd4 0-0 4.Nde2 c5
  =  (-0.23)   Depth: 12   00:00:06  4320kN

(Blass, Tel-Aviv 02.07.2003)

New game
r1b1k2r/pp4bp/2p2n2/3p2p1/8/q1NBPNP1/P1PK1PP1/1R1Q3R w kq - 0 1

Analysis by Junior 5.0:

1.Nxg5 Bg4 2.f3
  ±  (1.21)   Depth: 3   00:00:00  1kN
1.Nxg5 Ng4 2.Rb3 Qa5 3.Qf3 Rf8
  ±  (1.04)   Depth: 6   00:00:00  13kN
1.Nxg5 Ng4 2.Rb3 Qa5 3.Qf3 Rf8
  ±  (1.04)   Depth: 6   00:00:00  16kN
1.Nxg5 Qa5 2.Bxh7 d4 3.Bg6+ Ke7 4.Rxh8 dxc3+ 5.Ke1 Bxh8
  ³  (-0.40)   Depth: 9   00:00:00  368kN
1.Rb3 Qa5 2.a3 Ne4+ 3.Bxe4 dxe4 4.Nd4 Rf8
  =  (-0.18)   Depth: 9   00:00:01  743kN
1.Rb3 Qa5 2.a3 Ne4+ 3.Bxe4 dxe4 4.Nd4 Rf8
  =  (-0.18)   Depth: 9   00:00:01  872kN
1.Rb3 Qa5 2.Ke2 Rf8 3.Nb1 g4 4.Ng5 h5
  =  (0.08)   Depth: 12   00:00:04  3025kN
1.Rb3 Qa5 2.Ke2 Rf8 3.Nb1 g4 4.Ng5 h5
  =  (0.08)   Depth: 12   00:00:07  4606kN

(Blass, Tel-Aviv 02.07.2003)

Uri

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