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Subject: Stunning Glaurung 1.0.1

Author: Jouni Uski

Date: 07:43:12 01/18/06


When testing Glaurung in tactical tests I noticed very fast, that it is great
to find combinations. And see: in 2 of 3 test suites Glaurung was better than
ANY of my commercial engines! Here's 2 examples in P2400 hardware:

Kaidanov - Donaldson, USA 1992
[D] rq3rk1/1b1n1ppp/ppn1p3/3pP3/5B2/2NBP2P/PP2QPP1/2RR2K1 w - - 0 1

Analysis by Glaurung 1.0.1:

1.Qh5 g6
  ±  (1.28)   Depth: 2/12   00:00:00
1.Qh5 h6 2.e4
  ±  (0.98)   Depth: 3/12   00:00:00
1.Qh5 h6 2.e4 d4
  ±  (1.20)   Depth: 4/13   00:00:00
1.Qh5 h6 2.Na4 Qc7 3.Qg4
  ±  (0.85)   Depth: 5/13   00:00:00
1.Qh5 g6 2.Qh6 Ndxe5 3.Rc2 f6
  ±  (1.23)   Depth: 6/19   00:00:00  16kN
1.Qh5 g6 2.Qh6 Nc5 3.Bc2 Qc7 4.e4
  ±  (1.35)   Depth: 7/19   00:00:00  42kN
1.Qh5 g6 2.Qh6 Nc5 3.Bc2 Nxe5 4.Re1 f6
  ±  (1.10)   Depth: 8/20   00:00:00  63kN
1.Qh5 g6 2.Qh6 Ncxe5 3.Kf1 Nf6 4.Na4 b5 5.Nb6
  ²  (0.62)   Depth: 9/21   00:00:01  193kN
1.Qh5 g6 2.Qh6 Ncxe5 3.e4 d4 4.Bc2 dxc3 5.Rxd7 cxb2 6.Rb1
  ²  (0.70)   Depth: 10/22   00:00:02  691kN
1.Qh5 g6 2.Qh6 Ndxe5 3.Ne2 Qd8 4.Bb1 f5 5.e4 Rf7 6.exf5
  ²  (0.34)   Depth: 11/23   00:00:05  1509kN
1.Qh5 g6 2.Qh6 Ndxe5 3.Ne2 Qd8 4.Bb1 f5 5.Bg5 Qd7 6.Nf4 a5
  =  (0.25)   Depth: 12/27   00:00:15  4697kN
1.Na4 Ncxe5 2.Nxb6 Nxb6 3.Bxh7+ Kxh7 4.Qh5+ Kg8 5.Bxe5 Qa7 6.Rc7 Nc4 7.Bd4 Nb6
8.b3
  ²  (0.29)   Depth: 12/29   00:00:21  6347kN
1.Na4 g6 2.Bh6 Rc8 3.f4 b5 4.Nc3 Qa7 5.Bc2 Nb4 6.Rd4 Nxc2 7.Qxc2
  ²  (0.39)   Depth: 13/31   00:00:42  13277kN
1.Na4 g6 2.Bh6 Rc8 3.f4 b5 4.Nc3 Qa7 5.Bg5 Nb4 6.Be7 Nc5 7.Bxc5 Qxc5
  ²  (0.39)   Depth: 14/33   00:00:57  17920kN
1.Nxd5 exd5 2.e6 Qd8 3.exd7 Qxd7 4.Qh5 f5 5.e4 g6 6.Qh6 fxe4 7.Bxe4 d4 8.Bd3
  +-  (1.62)   Depth: 14/36   00:01:37  29822kN
1.Nxd5 exd5 2.e6 Qd8 3.exd7 Qxd7 4.Qh5 f5 5.e4 g6 6.Qh6 fxe4 7.Bxe4 d4 8.b3 Rae8
  +-  (1.59)   Depth: 15/39   00:02:05  38143kN

Fatalibekov - Medyanikova, Soviet Union 1975
[D]1rbqnr2/5p1k/p1np3p/1p1Np3/4P2P/1Q2B3/PPP1BP2/2KR3R w - - 0 1

Analysis by Glaurung 1.0.1:

1.Rdg1 Ng7
  +-  (2.28)   Depth: 2/5   00:00:00
1.Rdg1 Ng7 2.h5
  +-  (2.31)   Depth: 3/6   00:00:00
1.Rdg1 Nf6 2.Nc3 Nd4
  +-  (2.03)   Depth: 4/8   00:00:00
1.Rdg1 Rg8 2.Rxg8 Kxg8 3.Bxh6
  +-  (2.17)   Depth: 5/12   00:00:00
1.Rdg1 Na5 2.Qc3 Be6 3.Qd3 Rc8
  +-  (2.20)   Depth: 6/15   00:00:00  41kN
1.Rdg1 Be6 2.f4 f5 3.fxe5 dxe5 4.h5 fxe4
  +-  (2.15)   Depth: 7/16   00:00:00  104kN
1.Rdg1 Be6 2.Bd2 Nd4 3.Qe3 Nxe2+ 4.Qxe2 Bxd5 5.exd5
  +-  (2.04)   Depth: 8/20   00:00:01  238kN
1.Bxh6 Kxh6 2.Qf3 Ng7 3.Nf6 Qb6 4.Rhg1 Qc5
  +-  (2.67)   Depth: 8/22   00:00:02  429kN
1.Bxh6 Kxh6 2.Qf3 Ng7 3.Nf6 Qb6 4.Qg3 Ne6 5.Rxd6 Rh8
  +-  (3.43)   Depth: 9/26   00:00:03  490kN
1.Bxh6 Kxh6 2.Qf3 Rg8 3.Qxf7 Rg4 4.Bxg4 Bxg4 5.Rdg1 Qd7
  +-  (3.57)   Depth: 10/28   00:00:04  654kN
1.Bxh6 Kxh6 2.Qf3 Rg8 3.Qxf7 Rg4 4.Bxg4 Bxg4 5.Ne3 Qc8 6.f3
  +-  (3.79)   Depth: 11/28   00:00:05  1063kN

Jouni




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