Author: Vincent Lejeune
Date: 18:24:56 08/31/04
Go up one level in this thread
here's the game and the FEN
[Event "Belgrade URS-World"]
[Site "Belgrade"]
[Date "1970.03.31"]
[Round "2.1"]
[White "Larsen, Bent"]
[Black "Spassky, Boris V"]
[Result "0-1"]
[ECO "A01"]
[Annotator "Bulletin"]
[PlyCount "34"]
[EventDate "1970.03.29"]
[Source "ChessBase"]
1. b3 e5 2. Bb2 Nc6 3. c4 Nf6 4. Nf3 (4. g3 d5 $15 {Larsen=:L}) 4... e4 5. Nd4
Bc5 6. Nxc6 (6. e3 $2 Bxd4 7. exd4 d5 $17 {L}) 6... dxc6 7. e3 Bf5 8. Qc2 Qe7
9. Be2 $6 {L} O-O-O 10. f4 $4 {L/ ? Spassky=:S} (10. a3 {L}) (10. Bxf6 Qxf6 11.
Nc3 {S}) 10... Ng4 $1 {S} 11. g3 (11. O-O Qh4 12. h3 h5 $40 {L}) (11. Bxg4 Qh4+
{L}) 11... h5 (11... Rxd2 12. Nxd2 Nxe3 13. Qc3 Rd8 $40) 12. h3 (12. Nc3 Rxd2
$1 {S}) 12... h4 $1 {S} 13. hxg4 (13. Bxg4 Bxg4 14. hxg4 hxg3 15. Rg1 Rh2 $19 {
L} (15... Rh1 $1 {S} 16. Rxh1 g2 17. Rg1 Qh4+ 18. Ke2 (18. Kd1 Qf2 19. Qxe4)
18... Qxg4+ 19. Ke1 Qg3+ 20. Ke2 (20. Kd1 Qf2 21. Qxe4 Qxg1+ 22. Kc2 Qf2 $19)
20... Qf3+ 21. Ke1 Be7 $19)) 13... hxg3 14. Rg1 Rh1 $1 {L} (14... Qh4 15. Rg2
Qh1+ 16. Bf1 Bxg4 17. Qxe4 Rhe8 18. Be5 f6 19. Nc3 $17 {L}) 15. Rxh1 g2 16. Rf1
(16. Rg1 Qh4+ 17. Kd1 Qh1 {L} 18. Qc3 Qxg1+ 19. Kc2 Qf2 20. gxf5 Qxe2 21. Na3
Bb4 $19 {S} (21... Qd3+ 22. Qxd3 exd3+ 23. Kc3 Bxe3 (23... a5 24. Nc2 $1) 24.
dxe3 d2 25. Rd1 Rh8 $19 {S})) 16... Qh4+ 17. Kd1 gxf1=Q+ (17... gxf1=Q+ 18.
Bxf1 Bxg4+ 19. Kc1 Qe1+ 20. Qd1 Qxd1#) 0-1
[d]2kr3r/ppp1qpp1/2p5/2b2b1p/2P1pPn1/1P2P1PP/PBQPB3/RN2K2R b KQ - 0 12
h4!!
On August 31, 2004 at 20:37:21, stuart taylor wrote:
>On August 31, 2004 at 20:33:56, stuart taylor wrote:
>
>>On August 31, 2004 at 20:31:36, stuart taylor wrote:
>>
>>>[D]r3k2r/ppp1qpp1/2p5/2b2b1p/2P1pPn1/1P2P1PP/PB1PB3/RN1QK2R b
>>>
>>>This position is from Larsen-Spaasky, a famous game which I always used to test
>>>chess programs with. The earlier programs never used to get it right, even the
>>>later Rh1!! by white, even after many days thought. But now, even a free program
>>>like Arasan gets the next move 11...h4!! after only about 1h and 35mins.and
>>>before 2 hours, it displays a full sequence with a clear plus number (of well
>>>over 2 Pawns)
>>>
>>>I'm sorry about not saying every little detail, but I reconstructed this actual
>>>position from long-term (human) memmory, before testing it on Arasan.
>>>There followed in the game ....h4
>>>12(i think)PXN PXP 13.Rg1 Rh1!!
>>>
>>>Do other programs get 11...h4!! much less than 2 hours, in a way that the
>>>program doesn't suddenly change its mind, but is convinced about it?
>>>Which programs get it, and how quick?
>>>
>>>Oh! My computer was 1.6 Ghz, intel. So some computer might get it quite a bit
>>>sooner with Arasan 8, let alone other programs.
>>>
>>>Oh Ohhhhhh!
>>>Try these opening moves
>>>1.b3 e5
>>>2.Bb2 Nc6
>>>3.Nc4 Nf6
>>>4.Nf3 e4
>>>5.Nd4 Bc5
>>>6.Nxc6 d:c6
>>>7.e3 Bf5
>>>8.Be2 Qe7
>>>9.f4 Ng4
>>>10.g3 h5
>>>11.h3....awaiting......
>>>
>>>
>>>
>>>H4!!!
>>>
>>>Whew! What alot of work! I hope the diagram comes out well! Now I'm pressing
>>>"post message"
>>>
>>>S.Taylor
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