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Subject: Re: A couple of test positions

Author: Richard Pijl

Date: 07:02:10 11/12/04

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On November 12, 2004 at 08:03:52, Albert Silver wrote:

>The following shots were played by some Pro Deo settings I'm working on, against
>Fritz 8.0.0.26. Some engines should not have too much trouble, others may have
>more. They're nice shots in any case.
>
>[D]r1b2rk1/1p2bpp1/pqn1p2p/8/2B1QB1P/P3PN2/1P3PP1/1K1R3R w - - 0 16
>
>The game went quite spectacularly and PD played 16.Ng5! afer which the game
>proceeded with 16...g6 17.Nxf7! Kxf7 18.h5! Bxa3 19.Qxg6+ Ke7 20.Rd2 Bb4 21.Rd3
>Qc5 22.Bxh6 Rf5 23.Rhd1!! and black resigned a few moves later.

The Baron 1.5.0, Xeon 2.8:
 ply       time        nodes   score  pv
  4( 9)&   0:00.09     11098   +0.94  Nf3-g5 f7-f5 Qe4-c2 Rf8-f6
  4(13).   0:00.11     15422   +0.94  Nf3-g5 f7-f5 Qe4-c2 Rf8-f6
  5(13)&   0:00.45     65656   +0.48  Nf3-g5 g7-g6 Ng5xe6 Be7xa3 Rd1-d2
  5(14)&   0:00.69    117149   +0.70  Bf4-d6 Rf8-d8 Bd6xe7 Nc6xe7 Rd1xd8
                                      Qb6xd8 Nf3-e5 a6-a5
  5(14).   0:00.73    128145   +0.70  Bf4-d6 Rf8-d8 Bd6xe7 Nc6xe7 Rd1xd8
                                      Qb6xd8 Nf3-e5 a6-a5
  6(14)&   0:00.98    189651   +0.42  Bf4-d6 Be7-f6 Qe4-c2 Rf8-d8 Qc2-b3
                                      Qb6-a5
  6(14)&   0:01.36    258461   +0.48  Nf3-g5 g7-g6 Ng5xe6 Be7xa3 Rd1-d2
                                      Bc8xe6 (Bc4xe6) (Kg8-g7)
  6(15).   0:03.09    637352   +0.48  Nf3-g5 g7-g6 Ng5xe6 Be7xa3 Rd1-d2
                                      Bc8xe6 (Bc4xe6) (Kg8-g7)
  7(14)&   0:04.16    821122   +0.26  Nf3-g5 g7-g6 Ng5xf7 Kg8xf7 Bf4xh6
                                      Be7xa3 Qe4-c2
  7(16)&   0:05.08   1032483   +0.37  Bf4-d6 Be7-f6 Qe4-c2 Rf8-d8 Qc2-b3
                                      Qb6xb3 Bc4xb3 Bc8-d7 Bb3-c4
  7(16).   0:10.39   2238414   +0.37  Bf4-d6 Be7-f6 Qe4-c2 Rf8-d8 Qc2-b3
                                      Qb6xb3 Bc4xb3 Bc8-d7 Bb3-c4
  8(16)&   0:11.16   2459182   +0.38  Bf4-d6 Be7-f6 Nf3-d4 Rf8-d8 Nd4-b3
                                      Bc8-d7 Bc4-d3 g7-g6 Bd3-c4
  8(17).   0:34.47   7725624   +0.38  Bf4-d6 Be7-f6 Nf3-d4 Rf8-d8 Nd4-b3
                                      Bc8-d7 Bc4-d3 g7-g6 Bd3-c4
  9(17)&   0:40.36   9112980   +0.33  Bf4-d6 Be7-f6 b2-b4 Rf8-d8 Bd6-c5
                                      Qb6-c7 Rd1xd8 Qc7xd8 Bc4-d3 g7-g6 Nf3-d4
  9(19).   1:39.81  22196623   +0.33  Bf4-d6 Be7-f6 b2-b4 Rf8-d8 Bd6-c5
                                      Qb6-c7 Rd1xd8 Qc7xd8 Bc4-d3 g7-g6 Nf3-d4
 10(17)+   1:49.67  24474600   +0.63  Bf4-d6 (Be7-f6) (b2-b4) (Rf8-d8) (Nf3-g5)
                                      (g7-g6) (Qe4-f4) (Kg8-g7) (Ng5-e4)
 10(19)&   1:54.52  25757177   +0.52  Bf4-d6 Be7-f6 b2-b4 Rf8-d8 Nf3-g5
                                      h6xg5 h4xg5 Rd8xd6 Qe4-h7 Kg8-f8 Qh7-h8
                                      Kf8-e7 g5xf6 g7xf6 Rd1xd6
 10(19)&   2:38.89  35090390   +0.62  Nf3-g5 g7-g6 Bf4-d6 Be7xd6 Rd1xd6
                                      Qb6-c7 Qe4-f4 Kg8-g7 Ng5-e4 b7-b5 Qf4-f6
                                      Kg7-h7
 10(19).   3:42.19  48903854   +0.62  Nf3-g5 g7-g6 Bf4-d6 Be7xd6 Rd1xd6
                                      Qb6-c7 Qe4-f4 Kg8-g7 Ng5-e4 b7-b5 Qf4-f6
                                      Kg7-h7
 11(18)&   4:01.64  52908112   +0.62  Nf3-g5 g7-g6 Bf4-d6 Be7xd6 Rd1xd6
                                      Qb6-c7 Qe4-f4 Kg8-g7 Ng5-e4 b7-b5 Qf4-f6
                                      Kg7-h7
 11(20).   7:29.56 101078253   +0.62  Nf3-g5 g7-g6 Bf4-d6 Be7xd6 Rd1xd6
                                      Qb6-c7 Qe4-f4 Kg8-g7 Ng5-e4 b7-b5 Qf4-f6
                                      Kg7-h7
 12(22)&  10:15.52 132730188   +0.71  Nf3-g5 g7-g6 Ng5xf7 Kg8xf7 h4-h5
                                      Be7xa3 h5xg6 Kf7-e7 Rd1-d2 Rf8-d8 Rd2-c2
                                      Nc6-a5 Bc4-a2 Qb6-b4 (Qe4xb4)
 12(22).  14:26.14 193610205   +0.71  Nf3-g5 g7-g6 Ng5xf7 Kg8xf7 h4-h5
                                      Be7xa3 h5xg6 Kf7-e7 Rd1-d2 Rf8-d8 Rd2-c2
                                      Nc6-a5 Bc4-a2 Qb6-b4
 13(24)&  18:31.77 243854437   +0.75  Nf3-g5 g7-g6 Ng5xf7 Kg8xf7 h4-h5
                                      Be7xa3 h5xg6 Kf7-e7 b2-b3 Nc6-a5 Bf4xh6
                                      Rf8-f6 g6-g7 Bc8-d7 Qe4-h7
 13(24).  30:42.13 415063274   +0.75  Nf3-g5 g7-g6 Ng5xf7 Kg8xf7 h4-h5
                                      Be7xa3 h5xg6 Kf7-e7 b2-b3 Nc6-a5 Bf4xh6
                                      Rf8-f6 g6-g7 Bc8-d7 Qe4-h7
 14(24)&  36:45.78 496692814   +0.83  Nf3-g5 f7-f5 Bc4xe6 Kg8-h8 Qe4-c4
                                      Be7xa3 Qc4-b3 Qb6xb3 Be6xb3 Ba3-e7 Bf4-d6
                                      Be7xd6 Rd1xd6 a6-a5 Bb3-c4 f5-f4
>
>[D]r1r3k1/pp2bpp1/2n1b2p/q2n4/3P2P1/P1NB1N1P/1PQB1P2/1K1R3R b - - 0 17
>
>Here PD played the strong 17...Ncb4! (not obvious to find for a human IMO) and
>play went 18.axb4 Bxb4 19.Bh7+ Kh8 20.Be4 Rxc3! 21.Bxc3 Nxc3+ 22.bxc3 Bxc3
>23.Qxc3 Qxc3 and white is lost.

The Baron 1.5.0, Xeon 2.8:
  5(13)&   0:00.88    171775   -0.75  Nd5xc3 Bd2xc3 Qa5-d5 Qc2-e2 Qd5-a2
                                      Kb1-c1 Be6-b3
  5(13).   0:01.36    273930   -0.75  Nd5xc3 Bd2xc3 Qa5-d5 Qc2-e2 Qd5-a2
                                      Kb1-c1 Be6-b3
  6(13)+   0:01.67    342088   -0.37  Nd5xc3 (Bd2xc3) (Qa5-d5) (Qc2-e2) (Qd5-a2)

                                      (Kb1-c1) (Nc6xd4) (Nf3xd4) (Rc8xc3)
  6(13)&   0:01.78    370713   -0.20  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-f8
                                      Qc2-e4 g7-g6 Bh7xg6 (f7xg6) (Qe4xg6)
  6(13).   0:02.45    502890   -0.20  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-f8
                                      Qc2-e4 g7-g6 Bh7xg6 (f7xg6) (Qe4xg6)
  7(14)&   0:02.94    618540   -0.20  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-f8
                                      Qc2-e4 g7-g6 Bh7xg6 f7xg6 Qe4xg6 Qd5-a2
                                      Kb1-c1
  7(14).   0:05.30   1133902   -0.20  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-f8
                                      Qc2-e4 g7-g6 Bh7xg6 f7xg6 Qe4xg6 Qd5-a2
                                      Kb1-c1
  8(15)+   0:07.11   1559637   +0.10  Nd5xc3 (Bd2xc3) (Qa5-d5) (Bd3-h7) (Kg8-f8)

                                      (Qc2-e4) (g7-g6) (Bh7xg6) (f7xg6) (Qe4xg6)
(Qd5-a2)
                                      (Kb1-c1) (Qa2-a1)
  8(16)&   0:09.02   2020032   +0.88  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-h8
                                      Bh7-e4 Qd5-a2 Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1
                                      Kc1xb1 Bb3xd1 (Rh1xd1)
  8(16).   0:12.59   2863575   +0.88  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-h8
                                      Bh7-e4 Qd5-a2 Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1
                                      Kc1xb1 Bb3xd1 (Rh1xd1)
  9(17)&   0:16.38   3770282   +0.88  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-h8
                                      Bh7-e4 Qd5-a2 Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1
                                      Kc1xb1 Bb3xd1 Rh1xd1
  9(17).   0:26.84   6237753   +0.88  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-h8
                                      Bh7-e4 Qd5-a2 Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1
                                      Kc1xb1 Bb3xd1 Rh1xd1
 10(18)&   0:43.06  10083491   +0.69  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-e4 Qd5-a2
                                      Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1 Kc1xb1 Bb3xd1
                                      Rh1xd1 Be7-d6 Nf3-e5
 10(19).   1:15.11  17969534   +0.69  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-e4 Qd5-a2
                                      Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1 Kc1xb1 Bb3xd1
                                      Rh1xd1 Be7-d6 Nf3-e5
 11(19)&   1:47.16  25752194   +0.59  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-h8
                                      Bh7-e4 Qd5-a2 Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1
                                      Kc1xb1 Bb3xd1 Rh1xd1 Be7-d6 Nf3-e5
(Nc6xe5)
                                      (d4xe5)
 11(19).   3:10.83  46261640   +0.59  Nd5xc3 Bd2xc3 Qa5-d5 Bd3-h7 Kg8-h8
                                      Bh7-e4 Qd5-a2 Kb1-c1 Be6-b3 Qc2-b1 Qa2xb1
                                      Kc1xb1 Bb3xd1 Rh1xd1 Be7-d6 Nf3-e5
(Nc6xe5)
 12(20)&   5:20.81  77858854   +0.57  Nd5xc3 Bd2xc3 Qa5-d5 Rd1-e1 Be7-d6
                                      Re1xe6 Qd5xe6 g4-g5 h6xg5 Bd3-h7 Kg8-f8
                                      Rh1-e1 Qe6-c4 Qc2-e4
 12(20).   7:55.06 117422333   +0.57  Nd5xc3 Bd2xc3 Qa5-d5 Rd1-e1 Be7-d6
                                      Re1xe6 Qd5xe6 g4-g5 h6xg5 Bd3-h7 Kg8-f8
                                      Rh1-e1 Qe6-c4 Qc2-e4
 13(22)&  13:50.89 197519072   +0.59  Nd5xc3 Bd2xc3 Qa5-d5 Rd1-e1 Qd5-a2
                                      Kb1-c1 Nc6-a5 Re1-e3 Be7-d6 Qc2-b1 Bd6-f4
                                      Qb1xa2 Be6xa2 Nf3-e5 Na5-b3 Kc1-d1
 13(22)+  23:47.31 349716217   +0.87  Nc6-b4 (a3xb4) (Nd5xb4) (Bd3-h7) (Kg8-h8)
                                      (Qc2-e4) (Be6-a2) (Kb1-c1) (Ba2-d5)
(Qe4xe7) (Kh8xh7)
 13(22)&  27:58.16 413213967   +1.82  Nc6-b4 a3xb4 Be7xb4 Nf3-e5 Nd5xc3
                                      b2xc3 Rc8xc3 Bd2xc3 Bb4xc3 Bd3-h7 Kg8-h8
                                      Qc2-e2 Kh8xh7 Kb1-c2 Qa5-b4 Qe2-e3
 13(22).  28:58.52 427959131   +1.82  Nc6-b4 a3xb4 Be7xb4 Nf3-e5 Nd5xc3
                                      b2xc3 Rc8xc3 Bd2xc3 Bb4xc3 Bd3-h7 Kg8-h8
                                      Qc2-e2 Kh8xh7 Kb1-c2 Qa5-b4 Qe2-e3
 14(24)+  36:19.41 538471776   +2.22  Nc6-b4 (a3xb4) (Be7xb4) (Nf3-e5) (Nd5xc3)
                                      (b2xc3) (Rc8xc3) (Bd2xc3) (Bb4xc3)
(Bd3-h7) (Kg8-h8)
                                      (Qc2-e2) (Be6-b3) (Ne5xf7) (Kh8xh7)
 14(24)&  42:19.64 633407857   +2.36  Nc6-b4 a3xb4 Be7xb4 Nf3-e5 Nd5xc3
                                      b2xc3 Rc8xc3 Bd2xc3 Bb4xc3 Bd3-h7 Kg8-h8
                                      Qc2-e2 Be6-b3 Ne5xf7 Kh8xh7 Qe2-e4 Kh7-g8
                                      Nf7xh6
 14(24).  46:34.95 698138044   +2.36  Nc6-b4 a3xb4 Be7xb4 Nf3-e5 Nd5xc3
                                      b2xc3 Rc8xc3 Bd2xc3 Bb4xc3 Bd3-h7 Kg8-h8
                                      Qc2-e2 Be6-b3 Ne5xf7 Kh8xh7 Qe2-e4 Kh7-g8
                                      Nf7xh6
Richard.



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