Author: George Tsavdaris
Date: 07:12:05 08/10/05
One of the most difficult to analyse games i have ever seen. Analysing it with
every other engine i see only black winning scores that lead to huge fail low
that favour white at the end....This game has many testpositions but so deep
that it's difficult for engines to find....The poor Chess Tiger 15.0 thought it
was winning in almost all game long, and with big scores, until the end that
realised the truth........:-)
At move 18, XXX-9 played 18.g5!? (or !! or ? i don't know) giving a full Knight
with no immediate material gain but showing a positive score. It was just a
speculative sacrifice that i can't decide if it was correct or not. Then it
played 21.Qh3! and showed a +2.38 score while other engines i tried believe that
black is winning.
Some testpositions occured analysing the game afterwards:
White to play 24.Rde1! showing a win.[Medium]
The 24th move of the game......
[D]rnr3k1/1b2b1p1/p3p1Pp/2npq3/1p1N2B1/1P2B2Q/P1P4P/1K1R3R w - - 0 24
White to play 25.Bf2!! showing a win.[Difficult(Easy to find, difficult to show
a win)]
Occurs after 24...Bf6! instead of the 24...Qf6?! played on the game.
[D]rnr3k1/1b4p1/p3pbPp/2npq3/1p1N2B1/1P2B2Q/P1P4P/1K2R2R w - - 0 1
White to play 23.Rhg1! showing a win.[Easy]
Occurs after 21...hxg6 22.Kb1 Rf8.........
[D]rn3rk1/1b2b1p1/p3p1p1/q1npP3/1p1N4/1P2BB1Q/P1P4P/1K1R3R w - - 0 23
White to play 23.Rdg1! showing a win.[Easy]
Occurs after 21...hxg6 22.Kb1 Rf8 23.Rhg1! Rf7 24.Rxg6 Qc7.........
[D]rn4k1/1bq1brp1/p3p1R1/2npP3/1p1N4/1P2BB1Q/P1P4P/1K1R4 w - - 0 25
White to play 25.Rhg1! showing a win.[Difficult]
Occurs after 21...hxg6 22.Kb1 Nc6 23.Bg4! Nxe5 24.Bxe6 Nf7 (Nxe6 loses
too)......
[D]r1r3k1/1b2bnp1/p3B1p1/q1np4/1p1N4/1P2B2Q/P1P4P/1K1R3R w - - 0 25
Bh6!! winning instantly.[Easy]
[D]r1r3k1/1b3np1/p3BbR1/3p4/1p1Nn3/qP2B2Q/P1P4P/3RK3 w - - 0 30
[Event "15'/40+15'/40+15'"]
[Site "Thessaloniki"]
[Date "2005.08.27"]
[Round "?"]
[White "XXX-9"]
[Black "Chess Tiger 15.0"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "69"]
[EventDate "2005.??.??"]
[TimeControl "40/900:40/900:900"]
{64MB, DFritz8.ctg, OEMComputer} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:02]} 2.
Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:04]} 3. d4 {[%emt 0:00:00]} cxd4 {
[%emt 0:00:08]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 5. Nc3 {
[%emt 0:00:00]} e6 {[%emt 0:00:07]} 6. Be2 {[%emt 0:00:00]} a6 {[%emt 0:00:00]}
7. f4 {[%emt 0:00:00]} Be7 {[%emt 0:00:04]} 8. Be3 {[%emt 0:00:00]} Qc7 {
[%emt 0:00:00]} 9. Qd2 {[%emt 0:00:00]} O-O {[%emt 0:00:04]} 10. O-O-O {
[%eval 21,14] [%emt 0:00:39]} b5 {[%emt 0:00:39]} 11. g4 {
[%eval 11,16] [%emt 0:00:41]} Bb7 {[%emt 0:00:29]} 12. Bf3 {
[%eval 24,16] [%emt 0:00:22]} b4 {[%emt 0:00:38]} 13. Na4 {
[%eval 10,16] [%emt 0:00:25]} Qa5 {[%emt 0:00:19]} 14. b3 {
[%eval 5,15] [%emt 0:00:11]} Rc8 {[%emt 0:01:25]} 15. Qg2 {
[%eval 30,15] [%emt 0:00:12]} d5 {[%emt 0:00:44]} 16. e5 {
[%eval 44,17] [%emt 0:00:31]} Ne4 {[%emt 0:00:24]} 17. f5 {
[%eval 58,16] [%emt 0:00:23]} Nc5 {[%emt 0:00:33]} 18. g5 {
[%eval 73,17] [%emt 0:00:58]} Nxa4 {[%emt 0:00:33]} 19. g6 {
[%eval 44,16] [%emt 0:01:41]} fxg6 {[%emt 0:01:11]} 20. fxg6 {
[%eval 101,13] [%emt 0:00:09]} Nc5 {[%emt 0:00:16]} 21. Qh3 {
[%eval 238,15] [%emt 0:00:39]} h6 {[%emt 0:02:38]} 22. Kb1 {
[%eval 202,12] [%emt 0:00:12]} Qc7 {[%emt 0:00:49]} 23. Bg4 {
[%eval 204,13] [%emt 0:00:20]} Qxe5 {[%emt 0:00:29]} 24. Rde1 {
[%eval 204,16] [%emt 0:00:42]} Qf6 {
Loses instantly. Better is Bf6 that loses also after 25.Bf2!! [%emt 0:01:48]}
25. Rhf1 {[%eval 362,15] [%emt 0:00:12]} Qxg6 {[%emt 0:00:08]} 26. Rg1 {
[%eval 452,15] [%emt 0:00:53]} Bg5 {[%emt 0:01:09]} 27. Nxe6 {
[%eval 464,15] [%emt 0:00:37]} Ne4 {[%emt 0:01:07]} 28. Bf5 {
[%eval 449,18] [%emt 0:00:27]} Qf6 {[%emt 0:00:33]} 29. Bxg5 {
[%eval 752,18] [%emt 0:00:26]} hxg5 {[%emt 0:02:23]} 30. Qh7+ {
[%eval 783,16] [%emt 0:00:08]} Kf7 {[%emt 0:00:00]} 31. Nxg5+ {
[%eval 749,16] [%emt 0:00:12]} Nxg5 {[%emt 0:00:54]} 32. Qh5+ {
[%eval 813,15] [%emt 0:00:07]} Kf8 {[%emt 0:00:13]} 33. Qh8+ {
[%eval 1137,16] [%emt 0:00:18]} Kf7 {[%emt 0:00:00]} 34. Bxc8 {
[%eval 1224,14] [%emt 0:00:13]} Bc6 {[%emt 0:01:22]} 35. Rgf1 {
[%eval 1226,14] [%emt 0:00:24]} 1-0
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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