Author: Enrique Irazoqui
Date: 07:54:57 10/24/99
Go up one level in this thread
On October 24, 1999 at 09:24:24, Georg v. Zimmermann wrote:
>I'm collecting tactical positions many computer programs can't solve. Not
>because they can't get enough plys deep but because they don't get the idea.
>Here is an example (note that Comet for example _does_ solve it, but many
>don't):
>
>8/2B1Q3/8/6pp/7k/7P/6P1/2q3K1 w - -
>
>Now there are sure more of this. Does anyone have a whole collection already or
>can post one or two positions he encountered ?
>
>Thanks,
>
>--Tec
You have some below. I post them in PGN to show the lines.
Enrique
[Event "?"]
[Site "?"]
[Date "1924.??.??"]
[Round "?"]
[White "Troitzky, A."]
[Black "[+0000.55f1b5]"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/2pp1p2/1p6/1kPP4/5Pp1/8/6PP/5K2 w - - 0 1"]
[PlyCount "29"]
[EventDate "1924.??.??"]
1. c6 $3 (1. h4 $2 gxh3 2. gxh3 (2. c6 hxg2+ 3. Kxg2 dxc6) 2... Kxc5 3.
h4 Kd6 4. h5 Ke7 5. h6 Kf8 $1) (1. d6 $2 c6 2. cxb6 Kxb6 3. h4 gxh3 4. gxh3 Kc5
5. h4 Kxd6 6. h5 Ke7 7. h6 Kf8) 1... dxc6 2. d6 $3 cxd6 3. h4 gxh3 4. gxh3 Kc5
5. h4 Kd5 6. h5 Ke6 7. h6 Kf6 8. f5 b5 9. Ke2 b4 10. Kd3 d5 11. Kc2 d4 12. Kc1
$1 c5 13. Kc2 c4 14. Kc1 $1 b3 (14... d3 15. Kd2) (14... c3 15. Kc2) 15. Kb2
1-0
[Event "tn24"]
[Site "?"]
[Date "1895.??.??"]
[Round "?"]
[White "Troitzky, A."]
[Black "[+0300.43d1b7]"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/1k4p1/3pP3/pP5P/8/8/1r5P/3K4 w - - 0 1"]
[PlyCount "31"]
[EventDate "1895.??.??"]
1. h6 $1 gxh6 2. e7 Rb1+ 3. Kd2 Rb2+
4. Kd3 Rb3+ 5. Kd4 Rb4+ 6. Kd5 Rxb5+ 7. Kxd6 Rb6+ 8. Kd5 (8. Kd7 $2 Rb1) 8...
Rb5+ 9. Kd4 Rb4+ 10. Kd3 Rb3+ 11. Ke2 Rb2+ 12. Kf3 Rb3+ 13. Kf4 Rb4+ 14. Kf5
Rb5+ 15. Kf6 Rb6+ 16. Kf7 1-0
[Event "Tilburg Fontys"]
[Site "?"]
[Date "1998.??.??"]
[Round "6"]
[White "Svidler, Peter"]
[Black "Van Wely, Loek"]
[Result "1-0"]
[WhiteElo "2710"]
[BlackElo "2635"]
[SetUp "1"]
[FEN "4R3/P7/2bB2p1/r3pk2/2p2p1P/2P2P1K/6P1/8 w - - 0 54"]
[PlyCount "13"]
[EventDate "1998.??.??"]
54. Rxe5+ $1 Rxe5 55. Bxe5 Kxe5 (55...
Bb7 56. Bc7 Bc6 {and Black has no defence against the march of the White king:
Kh2-g1-f1-e1-d1-c1-b2-a3-b4-c5.}) 56. Kg4 Kf6 57. Kxf4 Bb7 58. g4 Bc6 59. Ke3
Ke5 60. f4+ 1-0
[Event "?"]
[Site "?"]
[Date "1930.??.??"]
[Round "?"]
[White "Troitzky, A."]
[Black "[+0340.30h4d7"]
[Result "*"]
[SetUp "1"]
[FEN "8/3kP3/3br1P1/6P1/7K/8/8/7B w - - 0 1"]
[PlyCount "17"]
[EventDate "1930.??.??"]
1. Bc6+ $1 Kxe7 2. Bd5 (2. g7 Rg6 3. Bd5 Rxg7 4. Kh5 Kf8 $19) 2... Rxg6 3. Kh5
Rg7 4. g6 Kf6 5. Bf7 Kf5 6. Kh4 Kf4 7. Kh3 $1 Be7 8. Kg2 Bh4 9. Kf1 $1 $11 *
e7 8. Kg2 Bh4 9. Kf1 $1 $11 *
[Event "Daugavpils"]
[Site "?"]
[Date "1989.??.??"]
[Round "?"]
[White "Ubilava, E."]
[Black "Kupreichik, V."]
[Result "*"]
[SetUp "1"]
[FEN "r2n1rk1/pp1q3p/2ppb2b/1P3p2/2PP1R2/4N1P1/P5BP/1RBQ2K1 w - - 0 19"]
[PlyCount "17"]
[EventDate "1989.??.??"]
{48/(20)} 19. d5 $3 Bxf4 20. gxf4 cxd5 21. cxd5 h6 $8 (21... Bf7 22. Qd4 {
/\ Bb2+-}) 22. dxe6 Nxe6 23. Qd5 Kh7 24. Nxf5 Nc7 25. Qxd6 Qxf5 26. Qxc7+ Rf7
27. Qe5 $18 *
26. Qxc7+ Rf7
27. Qe5 $18 *
[Event "Palma de Mallorca (G"]
[Site "?"]
[Date "1989.??.??"]
[Round "?"]
[White "Krasenkov, M."]
[Black "Hernandez, Rom"]
[Result "*"]
[SetUp "1"]
[FEN "r4qk1/1Q1n1p1p/p1rpb1p1/6B1/N2bP3/1P3PK1/P3B1PP/2R4R b - - 0 20"]
[PlyCount "5"]
[EventDate "1989.??.??"]
20... Nf6 $3 21. Bxf6 (21. Rxc6 Nh5+ 22. Kh4 f6 $19) 21... Rxc1 22. Rxc1 Bxf6
$146 {Hernandez,Rom} *
Bxf6
$146 {Hernandez,Rom} *
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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