Author: Ron Murawski
Date: 10:47:40 02/09/03
Go up one level in this thread
On February 09, 2003 at 09:33:03, David Rasmussen wrote:
>What would your engine play here, and if not the suggested move, then why not?
>
>[D]2r5/p4pk1/3p2p1/Pp2p3/1P1nP1P1/q2P3P/2r3B1/1R2QR1K b - - 0 33
>
>33... Rxg2
>
Depth Score Time Nodes pv
5 342 0.55 19017 Qxd3 Rd1 Qa3 Kh2 Qa2
6 313? 0.83 69477 Qxd3 Qh4 Nc6 Qg5 Kg8
6 153 1.10 129598 Qxd3 Qh4 Kg8 Qf6 R8c7 Qd8+ Kh7 Qxd6
6 157 1.21 153082 f6 Qh4 Rf8 g5 Rf7
6 173 1.27 164674 Qa2 Ra1 Qe6 Rf2 R2c3 Qe3
7 153 1.60 256400 Qa2 Ra1 Qb3 Rb1 Qxd3 Qh4 Kg8 Qf6 R8c7 Qd8+ Kh7
Qxd6
7 184 1.93 354390 f6 Qg3 g5 h4 Rd2 hxg5 Rxd3
7 202! 2.04 408990 Ne2 Rf2 Qxd3 Bf3 Rc1 Rxc1 Rxc1
7 201? 2.15 441253 Ne2 Kh2 Nf4 Rf2 Qb3
7 214 2.42 568233 g5 Qe3 f6 Rg1 R8c3 Bf1 Rxd3 Bxd3
8 213 3.19 875368 g5 Qg3 f6 h4 R8c3 hxg5 fxg5 Qe3
8 243! 3.63 1057129 Ne2 Bf3 Nf4 Bd1 R2c3 Bb3 Rxd3 Rf3
8 267 3.79 1127872 Ne2 Bf3 Nf4 Qe3 Qa2 Qg1 Nxh3 Qxa7
9 289 5.33 1759329 Ne2 Rd1 Nf4 Rd2 Rc1 Rd1 Qb2 Rg1 Nxd3 Rxc1 Rxc1
9 296! 5.88 1987133 Qxd3 Rxf7+ Kxf7 Rd1 Nf3 Qh4 Qxe4 Qh7+ Kf6 Rxd6+
Kg5 Qe7+ Kh6 Bxf3
9 296 6.81 2374884 Qxd3 Rd1 Qc4 Qh4 Qe6 Rf2 Rh8 Qg3 Qf6
10 304 10.49 3939567 Qxd3 Rd1 Qb3 Qh4 Kg8 Rf6 Rxg2 Rxd4 exd4 Kxg2
Qxb4
11 333! 18.40 7371054 Qxd3 Rd1 Qb3 Qh4 Qe6 Kh2 Rb2 Rd3 Rxb4
11 335 23.18 9247444 Qxd3 Rd1 Qc4 Qh4 Qe6 Rde1 R8c4 Rb1 f6 g5 f5 exf5
Nxf5
12 306? 48.89 17871008 Qxd3 Rd1 Qc4 Qh4 Qe6 Ra1 Nb3 Rad1 f6 Rd3 R8c4
Rf2
12 307 61.41 22733572 Rxg2 Kxg2 Rc2+ Rf2 Qxd3 Rxc2 Nxc2 Qc1 Qxe4+ Kh2
Nxb4 Qb2 Qf4+ Kg2 Qe4+ Kh2 &rep.
12 318 160.77 57261607 Ne2 Ra1 Qxd3 Rd1 Qa3 Rf3 Nc3 Qf1 Qxb4 Rxf7+ Kg8
Re1
Horizon prepares Qxd3 by playing Ne2, then grabs the b4 pawn, but allows the
loss of it's own f7 pawn. The position is sharp and dynamic.
>[D]8/p4pk1/3p2p1/Pp2p3/1P1n2P1/6KP/4q3/2Q2R2 b - - 0 38
>
>38... Qc4
>
Depth Score Time Nodes pv
6 409 0.66 47033 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 Qe7
7 415 0.82 118122 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 Qf2
8 444! 1.15 230721 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 Qa1+ f6
8 441? 1.20 264179 Qd3+ Kg2 Ne2 Qe1 Qe4+ Kf2 Qf5+ Kxe2 Qe4+ Kf2
8 444 1.81 493516 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 Qa1+ f6
9 421 2.14 628502 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 h4 Kf6 Qc1
10 440 4.34 1481172 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 h4 Kf6 Qa1+ Ke6
Qe1+ Kd7
11 452 10.65 3876539 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 h4 Kf6 a6
12 481! 21.42 7889595 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 h4 Kf6 Kf2 Qh3
Qd1
12 528 26.47 9842628 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 h4 Kf6 g5+ Kf5
Qf2 Qe3 Qa2
13 557! 66.90 24317486 Qd3+ Kg2 Ne2 Qe1 Nf4+ Rxf4 exf4 h4 Kf6 g5+ Kf5
Qf2 Qe3 Qa2 Qe4+ Kf1 Qxb4
13 634 94.69 34531143 Qd3+ Kh2 Ne2 Qe1 Nf4 Rxf4 exf4 Qa1+ Kf8 Qe1 Qg3+
Qxg3 fxg3+ Kxg3 Ke7
Qd3+ all the way for Horizon. This keeps looking better and better.
>[D]8/p7/5k2/Pn1ppp2/1Pp4P/5K2/8/6R1 b - - 0 47
>
>47... Nd4+
>
Depth Score Time Nodes pv
6 277 0.60 35372 Nd4+ Kf2 f4 h5 e4 Kg2 f3+ Kf2
6 280 0.66 56865 e4+ Kf4 Nd4 Rb1 Ne6+ Kg3 d4
7 300 0.71 81232 e4+ Kf4 Nd4 Rg8 Ne6+ Kg3 f4+ Kg4 Ke5
8 272 0.88 143153 e4+ Kf4 Nd4 Rg8 Ne6+ Kg3 f4+ Kg4 f3 Rc8
8 275 1.04 202707 Nd4+ Kf2 f4 h5 e4 Rg8 Nc2
9 285 1.59 415199 Nd4+ Kf2 f4 h5 e4 Kf1 c3 Kf2 c2 Rc1
10 256? 2.47 772117 Nd4+ Kf2 f4 h5 Ne6 b5 Ng5 Rc1 Nh3+ Kf3 d4
10 314! 5.49 1964609 e4+ Kf2 f4 Rg5 e3+ Ke1 c3 Rg4 c2 Rxf4+ Ke5
10 314 5.54 1974821 e4+ Kf2 f4 Rg5 e3+ Ke1 Ke6 Rg6+ Ke7 Rg5 Nd4
11 285? 6.97 2545454 e4+ Kf2 f4 h5 e3+ Kf1 Na3 Rg6+ Kf5 Rg7 a6 h6 c3
11 251 10.49 3889593 e4+ Kf2 d4 h5 c3 h6 Nd6 h7 Nf7 b5 Ke5
11 252 11.42 4234961 d4 h5 Nd6 Rg6+ Kf7
12 235 15.71 5869046 d4 h5 c3 h6 Nd6 h7 Nf7 b5 Nh8 Ke2 e4 Rh1
12 239 22.79 8544679 Nd4+ Kf2 Ne6 b5 c3 b6 axb6 axb6 Nc5 Ke1 d4
13 251 42.89 16204022 Nd4+ Kf2 Ne6 b5 c3 Rg8 d4 Rc8 e4 b6 e3+ Kf3 axb6
axb6 Ke5
14 224 104.41 39082937 Nd4+ Kf2 Ne6 Rg8 Nf4 b5 c3 b6 c2 b7 c1q Rd8 d4
h5 a6
Horizon likes Nd4+ with designs on queening the c pawn. Horizon endgame
knowledge is not good, so I wouldn't trust this analsis very much.
>/David
Ron
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