Author: Ed Schröder
Date: 06:32:05 11/20/97
Go up one level in this thread
>Posted by Jouni Uski on November 20, 1997 at 01:29:07:
>This is Mate in 30 position:
>[FEN "5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - 0 1"]
>If You test with Rebel's infinite level You see, that Rebel cannot
>display more than Mate in 23, but probably it sees mate in 24..30
>also (there is mysterious number in display).
Rob already answered this one in RGCC. I like to add that the special
mate
algorithm in Rebel9 worked for this position extremely well. The 'mate
in 30
moves' is found on the second ply after just 11.017 nodes in 0 seconds
:))
- Ed Schroder -
Quote from RGCC
------------------------------------------------
From: Jouni Uski <email@address.com>
>This is Mate in 30 position:
>[FEN "5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - 0 1"]
>If You test with Rebel's infinite level You see, that Rebel cannot
>display more than Mate in 23, but probably it sees mate in 24..30
>also (there is mysterious number in display).
Thanks Jouni for this wonderful game fragment.
5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - id Mate in 30 moves;
Ed looked in the source code and confirms that 'mate announcements'
higher
than 23 moves are not displayed correctly. In stead of 'mate in 30
moves'
the score is displayed in pure ascii which looks funny, see below.
Here's the Rebel9 GAME TO TEXTFILE output on Rebel9's PLY=3 time level.
Jouni, you just blew our idea to do a new "mate in 30 moves" contest as
we assume nobody will find a better position :-(
On the other hand you saved us a lot of work :-)
----
Robert Kemper
Rebel 9.0 against Player Score:1-0
Date:20-11-1997
LEVEL :3 plys deep
1. Ne3-g4+
00:00 3.00 262144.00 Ne3-g4+ Ke5-f5 Ng4-h6+ Kf5-e5 Nh6-f7+
Ke5-f5
1. Ke5-f5
00:00 2.00 -327680.00 Ke5-f5 Ng4-h6+ Kf5-e5 Nh6-f7+ Ke5-f5
Nf7-d6+
2. Ng4-h6+
00:00 3.00 393216.00 Ng4-h6+ Kf5-e5 Nh6-f7+ Ke5-f5 Nf7-d6+
Kf5-e5
2. Kf5-e5
00:00 2.00 -458752.00 Kf5-e5 Nh6-f7+ Ke5-f5 Nf7-d6+ Kf5-e5
Nf6-g4+
3. Nh6-f7+
00:00 3.00 524288.00 Nh6-f7+ Ke5-f5 Nf7-d6+ Kf5-e5 Nf6-g4+
Ke5-d5
3. Ke5-f5
00:00 2.00 -589824.00 Ke5-f5 Nf7-d6+ Kf5-e5 Nf6-g4+ Ke5-d5
Ng4-e3+
4. Nf7-d6+
00:00 3.00 655360.00 Nf7-d6+ Kf5-e5 Nf6-g4+ Ke5-d5 Ng4-e3+
Kd5-e5
4. Kf5-e5
00:00 3.00 -720896.00 Kf5-e5 Nf6-g4+ Ke5-d5 Ng4-e3+ Kd5-e5
Nd6-f7+
5. Nf6-g4+
00:00 3.00 786432.00 Nf6-g4+ Ke5-d5 Ng4-e3+ Kd5-e5 Nd6-f7+
Ke5-e4
5. Ke5-d5
00:00 3.00 -851968.00 Ke5-d5 Ng4-e3+ Kd5-e5 Nd6-f7+ Ke5-e4
Nf7-g5+
6. Ng4-e3+
00:00 3.01 917504.00 Ng4-e3+ Kd5-e5 Nd6-f7+ Ke5-e4 Nf7-g5+
Ke4-e5
6. Kd5-e5
00:00 3.00 -983040.00 Kd5-e5 Nd6-f7+ Ke5-e4 Nf7-g5+ Ke4-e5
Ng5-f3+
7. Nd6-f7+
00:00 3.00 1048576.00 Nd6-f7+ Ke5-e4 Nf7-g5+ Ke4-e5 Ng5-f3+
Ke5-e4
7. Ke5-e4
00:00 2.00 Mate in -23 moves Ke5-e4 Nf7-g5+ Ke4-e5 Ng5-f3+
Ke5-e4
8. Nf7-g5+
00:00 2.03 Mate in 23 moves Nf7-g5+ Ke4-e5 Ng5-f3+ Ke5-e4
Nf3xd2+
8. Ke4-e5
00:00 2.00 Mate in -22 moves Ke4-e5 Ng5-f3+ Ke5-e4 Nf3xd2+
Ke4-e5
9. Ng5-f3+
00:00 2.00 Mate in 22 moves Ng5-f3+ Ke5-e4 Nf3xd2+ Ke4-e5
Nd2-f3+
9. Ke5-e4
00:00 2.00 Mate in -21 moves Ke5-e4 Nf3xd2+ Ke4-e5 Nd2-f3+
Ke5-e4
10. Nf3xd2+
00:00 2.00 Mate in 21 moves Nf3xd2+ Ke4-e5 Nd2-f3+ Ke5-e4
Nf3-g5+
10. Ke4-e5
00:00 2.00 Mate in -20 moves Ke4-e5 Nd2-f3+ Ke5-e4 Nf3-g5+
Ke4-e5
11. Nd2-f3+
00:00 2.04 Mate in 20 moves Nd2-f3+ Ke5-e4 Nf3-g5+ Ke4-e5
Ng5-f7+
11. Ke5-e4
00:00 2.00 Mate in -19 moves Ke5-e4 Nf3-g5+ Ke4-e5 Ng5-f7+
Ke5-e4
12. Nf3-g5+
00:00 2.03 Mate in 19 moves Nf3-g5+ Ke4-e5 Ng5-f7+ Ke5-e4
Nf7-d6+
12. Ke4-e5
00:00 2.00 Mate in -18 moves Ke4-e5 Ng5-f7+ Ke5-e4 Nf7-d6+
Ke4-e5
13. Ng5-f7+
00:00 2.01 Mate in 18 moves Ng5-f7+ Ke5-e4 Nf7-d6+ Ke4-e5
Ne3-g4+
13. Ke5-e4
00:00 2.00 Mate in -17 moves Ke5-e4 Nf7-d6+ Ke4-e5 Ne3-g4+
Ke5-d5
14. Nf7-d6+
00:00 2.03 Mate in 17 moves Nf7-d6+ Ke4-e5 Ne3-g4+ Ke5-d5
Ng4-f6+
14. Ke4-e5
00:00 2.00 Mate in -16 moves Ke4-e5 Ne3-g4+ Ke5-d5 Ng4-f6+
Kd5-e5
15. Ne3-g4+
00:00 2.02 Mate in 16 moves Ne3-g4+ Ke5-d5 Ng4-f6+ Kd5-e5
Nd6-f7+
15. Ke5-d5
00:00 2.00 Mate in -15 moves Ke5-d5 Ng4-f6+ Kd5-e5 Nd6-f7+
Ke5-f5
16. Ng4-f6+
00:00 2.01 Mate in 15 moves Ng4-f6+ Kd5-e5 Nd6-f7+ Ke5-f5
Nf7-h6+
16. Kd5-e5
00:00 2.00 Mate in -14 moves Kd5-e5 Nd6-f7+ Ke5-f5 Nf7-h6+
Kf5-e5
17. Nd6-f7+
00:00 2.01 Mate in 14 moves Nd6-f7+ Ke5-f5 Nf7-h6+ Kf5-e5
Nh6-g4+
17. Ke5-f5
00:00 2.00 Mate in -13 moves Ke5-f5 Nf7-h6+ Kf5-e5 Nh6-g4+
Ke5-f5
18. Nf7-h6+
00:00 2.04 Mate in 13 moves Nf7-h6+ Kf5-e5 Nh6-g4+ Ke5-f5
Ng4-e3+
18. Kf5-e5
00:00 2.00 Mate in -12 moves Kf5-e5 Nh6-g4+ Ke5-f5 Ng4-e3+
Kf5-e5
19. Nh6-g4+
00:00 2.01 Mate in 12 moves Nh6-g4+ Ke5-f5 Ng4-e3+ Kf5-e5
Nf6-g4+
19. Ke5-f5
00:00 2.00 Mate in -11 moves Ke5-f5 Ng4-e3+ Kf5-e5 Nf6-g4+
Ke5-e4
20. Ng4-e3+
00:00 2.03 Mate in 11 moves Ng4-e3+ Kf5-e5 Nf6-g4+ Ke5-e4
Ng4-f2+
20. Kf5-e5
00:00 2.00 Mate in -10 moves Kf5-e5 Nf6-g4+ Ke5-e4 Ng4-f2+
Ke4-e5
21. Nf6-g4+
00:00 2.01 Mate in 10 moves Nf6-g4+ Ke5-e4 Ng4-f2+ Ke4-e5
Nf2xd3+
21. Ke5-e4
00:00 2.00 Mate in -9 moves Ke5-e4 Ng4-f2+ Ke4-e5 Nf2xd3+ Ke5-e4
22. Ng4-f2+
00:00 2.01 Mate in 9 moves Ng4-f2+ Ke4-e5 Nf2xd3+ Ke5-e4 Nd3-f2+
22. Ke4-e5
00:00 2.00 Mate in -8 moves Ke4-e5 Nf2xd3+ Ke5-e4 Nd3-f2+ Ke4-e5
23. Nf2xd3+
00:00 2.01 Mate in 8 moves Nf2xd3+ Ke5-e4 Nd3-f2+ Ke4-e5 Nf2-g4+
23. Ke5-e4
00:00 2.00 Mate in -7 moves Ke5-e4 Nd3-f2+ Ke4-e5 Nf2-g4+ Ke5-e4
24. Nd3-f2+
00:00 2.01 Mate in 7 moves Nd3-f2+ Ke4-e5 Nf2-g4+ Ke5-e4 Ng4-f6+
24. Ke4-e5
00:00 2.00 Mate in -6 moves Ke4-e5 Nf2-g4+ Ke5-e4 Ng4-f6+ Ke4-e5
25. Nf2-g4+
00:00 2.01 Mate in 6 moves Nf2-g4+ Ke5-e4 Ng4-f6+ Ke4-e5 Ne3-c4+
25. Ke5-e4
00:00 2.00 Mate in -5 moves Ke5-e4 Ng4-f6+ Ke4-e5 Ne3-c4+ Ke5-f5
26. Ng4-f6+
00:00 2.02 Mate in 5 moves Ng4-f6+ Ke4-e5 Ne3-c4+ Ke5-f5 Nc4-d6+
26. Ke4-e5
00:00 2.00 Mate in -4 moves Ke4-e5 Ne3-c4+ Ke5-f5 Nc4-d6+ Kf5-e5
27. Ne3-c4+
00:00 2.02 Mate in 4 moves Ne3-c4+ Ke5-f5 Nc4-d6+ Kf5-e5 Nf6-g4+
27. Ke5-f5
00:00 2.00 Mate in -3 moves Ke5-f5 Nc4-d6+ Kf5-e5 Nf6-g4+ Ke5-d5
28. Nc4-d6+
00:00 2.02 Mate in 3 moves Nc4-d6+ Kf5-e5 Nf6-g4+ Ke5-d5 c2-c4+
28. Kf5-e5
00:00 2.00 Mate in -2 moves Kf5-e5 Nf6-g4+ Ke5-d5 c2-c4+
29. Nf6-g4+
00:00 2.03 Mate in 2 moves Nf6-g4+ Ke5-d5 c2-c4+
29. Ke5-d5
00:00 2.00 Mate in -1 move Ke5-d5 c2-c4+
30. c2-c4+
00:00 1.14 Checkmate! Rebel 9.0 wins! c2-c4+
Chess program: Ed Schroder
Book openings: Jeroen Noomen
Copyright: E.G.H. Schroder BV
>Jouni
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