Author: Bernhard Bauer
Date: 06:34:54 10/25/99
Go up one level in this thread
On October 23, 1999 at 12:19:44, Alexander Kure wrote:
>?? - Kappler,P
>[Kure,A]
>
>The idea is to blockade White's pawns and then
>force Black's b pawn. As White will be in
>Zugzwang, he has to give way to black's b pawn.
>I analyzed this position using my own chess
>intuition and checking the lines with a special
>Nimzo 7.32 version using 5 piece EGTBs.
>After that I checked the lines playing against
>Hiarcs. 1...Ke5 2.Ke3 [2.Kd3 Kf4 3.Kc4 Nf7 4.Kb5
>Nd6+ (4...Kxf3? 5.e5=) 5.Kb6 Ke5 (5...Kxf3? 6.e5=) 6.
>Kc5 b5 7.Kb4 (7.f4+? Kxe4 #18) 7...Kd4 8.Kb3 Nc8 (8...
>Ne8!? 9.Kb4 Nc7 10.Kb3 Na6-+) 9.Kb4 Na7 10.Kb3 Nc6-+]
>2...b5 3.f4+ [3.Kd3 Nf7 4.f4+ (4.Kc3 Nd6 5.Kb4 Kd4-+)
>4...Kd6 (4...Kxf4?? 5.Kd4=) 5.Kd4 - 3. f4+ Kd6 4.
>Kd4 Nf7] 3...Kd6 4.Kd4 [4.e5+ Kd5-+;
>4.f5 Ke5-+] 4...Nf7 5.e5+ [5.f5 Ne5 6.Kc3 A) 6...Nc6? 7.
>Kb3 Ke5 8.Kc3 Kxe4 (8...Kf6 9.Kb3=) 9.f6=; B) 6...Kc5 7.
>Kb3 b4-+] 5...Kc6 6.f5 [6.e6 Nd6 7.Ke5 b4 8.Kd4 (8.
>f5? b3 9.f6 b2 10.f7 b1Q 11.f8Q Qb2+ 12.Kf4 Qf2+-+)
>8...Kb5;
>6.Ke4 Kc5 A) 7.Kd3 A1) 7...b4!? 8.e6 (8.Kc2 Nd8 9.f5 Nc6
>10.e6 Nd4+-+) 8...Nd6 9.e7 (9.Kc2 Nf5 10.Kb2 Kc4-+)
>9...Ne8 10.f5 (10.Kc2 Kc4 is the same) 10...Nf6 11.
>Kc2 Kc4 12.Kb2 b3 13.Kb1 Kc3 14.Kc1 b2+ 15.Kb1
>Ne4 16.e8Q Nd2+ 17.Ka2 b1Q+ 18.Ka3 Qb3#; A2) 7...Kd5 8.
>Kc3 Nh6 9.Kb4 Kc6 10.Kb3 Kc5 11.Kc3 Nf5 12.e6 b4+
>13.Kb3 Nd4+-+;
>B) 7.e6 Nd6+ 8.Kd3 (8.Ke5 b4-+) 8...Kd5 9.e7 Ke6-+ (9...
>Ne8-+; 9...b4 10.f5 Ne8-+) ; C) 7.f5 C1) 7...Nd8 8.e6 (8.f6 b4
>9.Kd3 Ne6 10.Kc2 Kc4-+) 8...Kd6 9.Kd4 Nc6+ 10.Kc3
>Ne7 11.Kb4 (11.f6 Nd5+ 12.Kd4 Nxf6 #18) 11...Kc6 12.
>f6 Nd5+-+; C2) 7...b4!? 8.f6 Nd8 9.Kd3 Ne6 (9...Kd5 10.
>Kc2 Kc4-+) 10.Kc2 Kc4-+] 6...Nd8 7.Kc3 [7.f6? Ne6+ 8.
>Kc3 (8.Ke4 Kc5-+) 8...Kc5-+;
>7.e6 Kd6 8.Kc3 (8.e7 Nc6+-+) 8...Nc6 9.Kb3 A) 9...Kc5?
>10.Kb2 Kd5 11.Ka3 b4+ A1) 12.Kb3 Kc5 13.Kb2 (13.f6
>Nd4+-+) 13...Kd6 14.Kb3 Ke7 15.Ka4=; A2) 12.Kb2 ; B) 9...Ke7
>10.Kc3 Kf6 11.Kb3=] 7...Nb7 [7...Kc5? 8.e6 (8.f6?
>Ne6-+) 8...Nc6 (8...b4+?? 9.Kb3 Nc6 10.Ka4 Kd6 11.
>Kb3=) A) 9.f6 Kd6 (9...b4+?? 10.Kb2 Kd6 11.e7 Kd7 12.
>Kb3=) 10.f7 (10.e7 Kd7 11.Kb3 Ke8 12.Kc3 Kf7 13.Kb3=)
>10...Ke7 11.Kb3=; B) 9.Kb2 9...Kd6 10.Kb3 Ke7 11.Kc3
>Kf6 12.Kb3=] 8.Kb4 [8.f6 Nc5 9.f7 Ne6-+ 10.Kb4 Nf8
>11.Kc3 Kc5;
>8.e6 Nd6 9.e7 (9.f6 Ne4+-+) 9...Ne8-+] 8...Nc5 9.Kc3
>Na6 [9...Nd7? 10.Kd4 (10.e6? Nf6-+) 10...Nb6 11.e6 b4 (
>11...Nd5 12.Ke5=) A) 12.Kd3? Kd6 13.Kc2 (13.Kd4 Ke7 14.
>Ke5 b3-+) 13...Nd5 14.Kb3 Kc5-+; B) 12.e7 12...Kd7 13.f6
>Ke8 14.Kd3=;
>9...Ne4+? 10.Kd4=] 10.Kd4 [10.e6 Nc7 11.Kd4 (11.Kb3
>Kc5-+) 11...Kd6 12.Kc3 Nd5+ 13.Kb3 (13.Kd4 Nf6-+) 13...
>Kc5-+;
>10.f6 Nc7-+] 10...Nc7 11.Kc3 [11.f6 Ne6+-+;
>11.e6 Kd6 12.Kc3 Nd5+ 13.Kb3 Kc5-+] 11...Kd5 12.e6 [
>12.f6 Kc5 13.f7 Ne6-+] 12...Kc5 13.Kb3 [13.Kd3 Nd5 (
>13...Ne8!?; 13...b4!?) 14.Ke4 Kd6 15.Kd4 Nf6 16.Kc3
>Kc5-+] 13...Nd5-+ 14.Kb2 Kc4 15.Kb1 Kc3 16.Ka1 b4
>17.Kb1 b3 Line
I'd like to add crafty's line.
22-> 29:49 3.03 1. ... Ke5 2. Ke3 b6 3. f4+ Kd6 4.
Kd4 b5 5. e5+ Kc6 6. Ke4 b4 7. e6 b3
8. Kd3 Nf5 9. Kc3 Nd4 10. Kb2 Kd6 11.
f5 Ke7 12. Kc3 Kf6 13. Kxd4
23 33:06 ++ 1. ... Ke5!!
time=60:00 cpu=99% mat=2 n=376577098 fh=11% nps=104596
ext-> checks=20982272 recaps=142694 pawns=4971930 1rep=505061
thrt:77636
predicted=0 nodes=376577098 evals=40544571
endgame tablebase-> probes done=1475614 successful=1362726
SMP-> split=0 stop=0 data=0/64 cpu=60:00 elap=60:00
This line looks pretty good!
Kind regards
Bernhard
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