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Subject: Fritz 8 plays Rxe4 but the score = -2.69

Author: Franz Hagra

Date: 08:23:47 12/02/04

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8/7k/6p1/5p1p/R3nP1P/5KP1/8/4b3 w - - 0 1

Analysis by Fritz 8 time=10min

1. -+ (-2.69): 1.Txe4 fxe4+ 2.Kxe4 Lxg3 3.f5 Kg7 4.fxg6 Ld6 5.Kf3 Le7 6.Ke4 Lf6
7.Kf5 Le7
2. -+ (-2.78): 1.Ta7+ Kh6 2.Ta1 Lxg3 3.Th1 Lf2 4.Kg2 Kg7 5.Kf3 Ld4 6.Td1 Lf6
7.Th1 Kg8 8.Ke3 Kh7
3. -+ (-2.78): 1.Ta1 Lxg3 2.Th1 Kh6 3.Th3 Lf2 4.Th1 Ld4 5.Th3 Lf6 6.Th1 Kg7
4. -+ (-4.16): 1.Kg2 Lxg3 2.Kh3 Lxf4 3.Ta7+ Kh6 4.Ta6 Le5 5.Ta8 Lf6 6.Ta5 Lxh4
7.Kxh4 g5+ 8.Kh3 Kg6 9.Ta6+ Kf7 10.Kg2 h4

and the problem is this position after the moves:

1. Rxe4 fxe4+ 2. Kxe4 Bxg3 3. f5 Be1 (3... Bxh4 leads to draw also for Fritz)

Neue Partie,
8/7k/6p1/5P1p/4K2P/8/8/4b3 w - - 0 1

Analysis by Fritz 8 time=2.30min

1. -+ (-2.69): 4.Kf4 Ld2+ 5.Ke4 Lc3 6.fxg6+ Kg7 7.Kf5 Ld2
2. -+ (-2.69): 4.fxg6+ Kg7 5.Kd4 Ld2 6.Ke5 Le3
3. -+ (-13.66): 4.Ke5 g5 5.hxg5 h4 6.g6+ Kg7 7.Kf4 h3 8.Kf3 Lh4 9.Ke3 h2 10.Kd4
h1D 11.Kc5 Lf2+
4. -+ (-#18): 4.f6 Lxh4

and after 4. fxg5+ Kg7 Fritz thinks theres a chance for a win :-))

1. -+ (-2.69): 5.Ke5 Ld2 6.Ke6 Lc3 7.Kf5 Ld2 8.Ke5 Le3 9.Ke4 Lh6
2. -+ (-2.69): 5.Kf5 Ld2 6.Ke5 Le3 7.Ke4 Lh6
3. -+ (-2.69): 5.Kd4 Lb4 6.Ke3 Lc3 7.Kf4
4. -+ (-2.69): 5.Kf4 Ld2+ 6.Ke5 Le3 7.Ke4 Lh6

but its easy for white in this position: White King goes to g2/h1 and draw!

Hagra




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