I find these two games to be extremely rare in the sense that these
are equal from move 1 to the end. 46 moves!!!.
What is the possibility mathematically?

[Event "?"]
[Site "FSGM May, Budapest"]
[Date "2003.??.??"]
[Round "10"]
[White "Prusikhin,Mihailo"]
[Black "Horvath,Peter"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2455"]

1. d2-d4 d7-d5 2. c2-c4 e7-e6 3. Ng1-f3 Ng8-f6 4. g2-g3 Bf8-e7 5. Bf1-g2 O-O
6. O-O d5xc4 7. Nb1-c3 Nb8-c6 8. e2-e3 Ra8-b8 9. Qd1-a4 Bc8-d7 10. Qa4xc4
Nc6-a5 11. Qc4-e2 b7-b5 12. Nf3-e5 Bd7-e8 13. Rf1-d1 c7-c5 14. d4xc5 Qd8-c7
15. Ne5-d3 Be7xc5 16. b2-b3 Bc5-e7 17. Bc1-b2 Be8-c6 18. e3-e4 b5-b4
19. Nc3-a4 Qc7-b7 20. Na4-c5 Qb7-b5 21. Ra1-c1 Rf8-d8 22. Rc1-c2 Bc6-a8
23. Rd1-c1 Na5-c6 24. Qe2-e3 Be7xc5 25. Nd3xc5 e6-e5 26. Bg2-f1 Qb5-a5
27. Nc5-a4 Rd8-d6 28. f2-f3 Qa5-d8 29. Qe3-c5 Rd6-d1 30. Qc5-f2 Rd1-d6
31. Na4-c5 h7-h6 32. Nc5-a6 Rb8-b6 33. Bb2xe5 Nc6xe5 34. Rc2-c8 Kg8-h7
35. Rc8xd8 Rd6xd8 36. Na6-c7 Ba8-b7 37. Rc1-c5 Rd8-d2 38. Rc5xe5 Rd2xf2
39. Kg1xf2 Rb6-c6 40. Nc7-d5 Rc6-c2 41. Kf2-e3 Bb7xd5 42. e4xd5 Rc2xa2
43. d5-d6 a7-a5 44. Bf1-d3 g7-g6 45. Re5-e7 Kh7-g8 46. d6-d7 1-0

[Event "?"]
[Site "Summer I, Alushta"]
[Date "2004.??.??"]
[Round "12"]
[White "Derjabin,Ilja"]
[Black "Shtyrenkov,Veniamen"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2445"]

1. d2-d4 d7-d5 2. c2-c4 e7-e6 3. Ng1-f3 Ng8-f6 4. g2-g3 Bf8-e7 5. Bf1-g2 O-O
6. O-O d5xc4 7. Nb1-c3 Nb8-c6 8. e2-e3 Ra8-b8 9. Qd1-a4 Bc8-d7 10. Qa4xc4
Nc6-a5 11. Qc4-e2 b7-b5 12. Nf3-e5 Bd7-e8 13. Rf1-d1 c7-c5 14. d4xc5 Qd8-c7
15. Ne5-d3 Be7xc5 16. b2-b3 Bc5-e7 17. Bc1-b2 Be8-c6 18. e3-e4 b5-b4
19. Nc3-a4 Qc7-b7 20. Na4-c5 Qb7-b5 21. Ra1-c1 Rf8-d8 22. Rc1-c2 Bc6-a8
23. Rd1-c1 Na5-c6 24. Qe2-e3 Be7xc5 25. Nd3xc5 e6-e5 26. Bg2-f1 Qb5-a5
27. Nc5-a4 Rd8-d6 28. f2-f3 Qa5-d8 29. Qe3-c5 Rd6-d1 30. Qc5-f2 Rd1-d6
31. Na4-c5 h7-h6 32. Nc5-a6 Rb8-b6 33. Bb2xe5 Nc6xe5 34. Rc2-c8 Kg8-h7
35. Rc8xd8 Rd6xd8 36. Na6-c7 Ba8-b7 37. Rc1-c5 Rd8-d2 38. Rc5xe5 Rd2xf2
39. Kg1xf2 Rb6-c6 40. Nc7-d5 Rc6-c2 41. Kf2-e3 Bb7xd5 42. e4xd5 Rc2xa2
43. d5-d6 a7-a5 44. Bf1-d3 g7-g6 45. Re5-e7 Kh7-g8 46. d6-d7 1-0


Sepi

Things should be made as simple as possible- no simpler.
- Albert Einstein (1879 - 1955)

Sepi wrote:
I find these two games to be extremely rare in the sense that these
are equal from move 1 to the end. 46 moves!!!.

Database error. Prusikhin-Horvath (Budapest, 2003) is, according to
TWIC[1] the 46-move win for White that you posted.

The headers for the Derjabin-Shtyrenkov game you posted are all wrong.
The Alushta Summer I tournament was in 2003, not 2004, and, according to
[2], Ilya Derjabin wasn't playing. Alushta Summer II was in 2004 and
featured both players but they met in round 13 (not 12), with Shtyrenkov
playing white (not Derjabin) and you also give different ratings for the
players. The game score is, according to TWIC 500 [3], a four(!!!!)-move
draw.

[Event "Summer II"]
[Site "Alushta UKR"]
[Date "2004.06.01"]
[Round "13"]
[White "Shtyrenkov,V"]
[Black "Derjabin,I"]
[Result "1/2-1/2"]
[WhiteElo "2449"]
[BlackElo "2391"]
[EventDate "2004.05.22"]
[ECO "A57"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 Bb7 1/2-1/2


I did find, in the PGN for Alushta Summer I, the game Shtyrenkov-Kalygin,
which, like Prusikhin-Horvath, begins 1.d4 Nf6 and ends with White playing
a pawn from d6 to d7, but Shtyrenkov did it on move 42 and Prusikhin on
move 46, in rather different positions.

Shtyrenkov seems to like quick draws in Alushta... He had draws of 7, 12,
11, 14, 14, 11 and 10 moves in 2003 (seven short draws in fourteen rounds)
and 9, 11, 11, 15, 13, 13, 13, 4, 15 and 10 (ten short draws in fifteen
rounds) in 2004.


Dave.

[1] http://www.chesscenter.com/twic/twic445.html
[2] http://members.lycos.co.uk/csarchive/alu03jun.htm
[3] http://www.chesscenter.com/twic/twic500.html

--
David Richerby Confusing Composer (TM): it's like
www.chiark.greenend.org.uk/~davidr/ a pupil of Beethoven but you can't
understand it!

David Richerby wrote 09 Jun 2004 22:17:10 +0100
(BST) to " Unbeliavable!!!!" these lines:


Database error. Prusikhin-Horvath (Budapest, 2003) is, according to
TWIC[1] the 46-move win for White that you posted.

The headers for the Derjabin-Shtyrenkov game you posted are all wrong.
The Alushta Summer I tournament was in 2003, not 2004, and, according to
[2], Ilya Derjabin wasn't playing. Alushta Summer II was in 2004 and
featured both players but they met in round 13 (not 12), with Shtyrenkov
playing white (not Derjabin) and you also give different ratings for the
players. The game score is, according to TWIC 500 [3], a four(!!!!)-move
draw.

[Event "Summer II"]
[Site "Alushta UKR"]
[Date "2004.06.01"]
[Round "13"]
[White "Shtyrenkov,V"]
[Black "Derjabin,I"]
[Result "1/2-1/2"]
[WhiteElo "2449"]
[BlackElo "2391"]
[EventDate "2004.05.22"]
[ECO "A57"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 Bb7 1/2-1/2


I did find, in the PGN for Alushta Summer I, the game Shtyrenkov-Kalygin,
which, like Prusikhin-Horvath, begins 1.d4 Nf6 and ends with White playing
a pawn from d6 to d7, but Shtyrenkov did it on move 42 and Prusikhin on
move 46, in rather different positions.

Shtyrenkov seems to like quick draws in Alushta... He had draws of 7, 12,
11, 14, 14, 11 and 10 moves in 2003 (seven short draws in fourteen rounds)
and 9, 11, 11, 15, 13, 13, 13, 4, 15 and 10 (ten short draws in fifteen
rounds) in 2004.


Dave.

[1] http://www.chesscenter.com/twic/twic445.html
[2] http://members.lycos.co.uk/csarchive/alu03jun.htm
[3] http://www.chesscenter.com/twic/twic500.html

Thank's Dave.

You englishmen are good in detective work,aren't you. LOL.
As I download games solely from twic, this is what one gets.
So my post was a false alarm.


Sepi

Things should be made as simple as possible- no simpler.
- Albert Einstein (1879 - 1955)