23 Dec 09
Originally posted by SwissGambitmeh, I bet you needed a board...
[pgn]
[FEN "5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - 0 1"]
1. Neg4+ Kf5 2. Nh6+ Ke5 3. Nf7+ Kf5 4. Nd6+ Ke5 5. Ng4+ Kd5 6. Ne3+ Ke5 7. Nf7+ Ke4 8. Ng5+ Ke5 9. Nf3+ Ke4 10. Nxd2+ Ke5 11. Nf3+ Ke4 12. Ng5+ Ke5 13. Nf7+ Ke4 14. Nd6+ Ke5 15. Ng4+ Kd5 16. Nf6+ Ke5 17. Nf7+ Kf5 18. Nh6+ Ke5 19. Nhg4+ Kf5 20. Ne3+ Ke5 21. Nfg4+ Ke4 22. Nf2+ Ke5 23. Nxd ...[text shortened]... e4 24. Nf2+ Ke5 25. Nfg4+ Ke4 26. Nf6+ Ke5 27. Nc4+ Kf5 28. Nd6+ Ke5 29. Ng4+ Kd5 30. c4[/pgn]
24 Dec 09
Originally posted by SwissGambitTo be honest I don't understand anything of this Knights tangle, very nice you solved it.
Nice puzzle. I like the part where the 'wrong' N is on e3, forcing a further slew of checks just to substitute the other one.
http://www.rebel.nl/rebel10c.htm
"Fixed Rebel 9.0's display bug in cases when a very deep mate combination is found. Rebel10 now will show now the correct mate line, see the following example:
00:00:00 2.01 Mate in 30 moves Ne3-g4+ Ke5-f5 Ng4-h6+ Kf5-e5 Nh6-f7+ Ke5-f5
Please note that the complete mate is found in less than one second!"
(Last update March 26, 1999)
A lot more commercial talk like "In other words Rebel (using anti-GM) does not need to know the sacrifice is 100% correct for this position, Rebel smells the chance of an attack and goes for it!"
We're ten years further, have engines been messed up in the meantime?
24 Dec 09
1 edit
Originally posted by heinzkatI had a vague idea that the solution involved removing enough defensive pieces [with check] to pave the way for an eventual mate.
To be honest I don't understand anything of this Knights tangle, very nice you solved it.
http://www.rebel.nl/rebel10c.htm
"Fixed Rebel 9.0's display bug in cases when a very deep mate combination is found. Rebel10 now will show now the correct mate line, see the following example:
00:00:00 2.01 Mate in 30 moves Ne3-g4+ Ke5-f5 Ng4-h6+ Kf5-e5 Nh6-f7 nd goes for it!"
We're ten years further, have engines been messed up in the meantime?
However, I solved by just looking for lines that made some kind of progress. Obviously, white must continually check, so there's few alternatives. There's no need for a complete understanding of the position up-front.
24 Dec 09
Originally posted by heinzkatRebel was believed to be the most human-like engine that has ever reached GM strength. I think Rybka 3 Human has surpassed it in this aspect.
To be honest I don't understand anything of this Knights tangle, very nice you solved it.
http://www.rebel.nl/rebel10c.htm
"Fixed Rebel 9.0's display bug in cases when a very deep mate combination is found. Rebel10 now will show now the correct mate line, see the following example:
00:00:00 2.01 Mate in 30 moves Ne3-g4+ Ke5-f5 Ng4-h6+ Kf5-e5 Nh6-f7 ...[text shortened]... nd goes for it!"
We're ten years further, have engines been messed up in the meantime?