Author: David Rasmussen
Date: 16:32:28 02/08/03
Go up one level in this thread
On February 08, 2003 at 14:54:00, John Merlino wrote:
>
>I'll attempt to guess where Chezzz went out of book again, ok? :-) I'll guess
>that the first non-book move was 6...e6. I can't find that move in any database,
You may be right, but I don't know because this game was resumed from some other
day, and in the meantime I've switched book scheme and books. I could find out
what book I was using that day etc., but... :)
>and CM9000 has 6...Nf6 in its book, AND that move (e6) appears to lose at least
>1/4 of a pawn.
>
>Note, the following analysis was done fairly quickly on a fairly slow machine.
>But it might prove to be of some use.
>
>CM9000 is also pretty happy with 14...f6 (eval about -0.5) and 19...c4 (ditto).
>
>CM9000 really likes 32...Qa2 (eval over -3). 32...Rhc8 is about 3/4 pawn less.
>
Chezzz never really likes Qa2:
time nodes depth score pv
00:00:00.00 14n 01/01/02 +1.042 32... g5 (14)
00:00:00.01 16n 01/01/02 +1.126 32... a6 (16)
00:00:00.01 18n 01/01/02 +1.342 32... f6 (18)
00:00:00.03 45n 01/01/02 +1.376 32... Rhc8 (45)
00:00:00.03 60n 01/01/02 ---------------------------------------------------
00:00:00.04 90n 02/02/03 +1.118 32... Rhc8 33. Kh2 (90)
00:00:00.06 319n 02/03/05 +1.503 32... Rc3 33. Kg1 Rxd3 (319)
00:00:00.08 407n 02/03/05 ---------------------------------------------------
00:00:00.08 620n 03/04/05 +1.503 32... Rc3 33. Kg1 Rxd3 (620)
00:00:00.11 1435n 03/05/07 ---------------------------------------------------
00:00:00.12 3739n 04/06/08 +1.231 32... Rc3 33. Qe1 Rxd3 34. Rc1 (3739)
00:00:00.12 4714n 04/06/08 +1.286 32... Qa2 33. Ra1 Qb2 34. Rb1 (4714)
00:00:00.14 8478n 04/07/09 +1.607 32... Rhc8 33. Kh2 R8c3 34. h4 Rxd3 (8478)
00:00:00.17 8548n 04/07/09 ---------------------------------------------------
00:00:00.17 12kn 05/08/09 +1.607 32... Rhc8 33. Kh2 R8c3 34. h4 Rxd3 (12031)
00:00:00.22 18kn 05/10/11 ---------------------------------------------------
00:00:00.25 31kn 06/10/12 +1.607 32... Rhc8 33. Kh2 R8c3 34. Qe1 Rxd3
35. h4 (31162)
00:00:00.33 56kn 06/12/13 ---------------------------------------------------
00:00:00.42 114kn 07/12/13 +1.710 32... Rhc8 33. g5 R8c3 34. Rf6 Qa2
35. Bf1 Rc6 (114951)
00:00:00.54 169kn 07/13/14 ---------------------------------------------------
00:00:01.00 443kn 08/14/16 +1.793 32... Rhc8 33. Qe1 Kg8 34. Qd1 R8c3
35. Qe1 Rxd3 36. Kh2 (443044)
00:00:01.25 566kn 08/17/18 ---------------------------------------------------
00:00:02.04 1076kn 09/15/18 +1.636 32... Rhc8 33. Qe1 Kg8 34. Qe3 R8c7
35. Bf3 R7c3 36. Rfd1 Qa2 (1076042)
00:00:02.48 1344kn 09/16/18 ---------------------------------------------------
00:00:04.97 2839kn 10/18/22 +1.604 32... Rhc8 33. Qe1 Kg8 34. Qe3 R8c7
35. Qg5 Nc6 36. Rbc1 Rxc1
37. Rxc1 Qxb4 (2839788)
00:00:09.17 5383kn 10/21/23 +1.740 32... Rc3 33. Kg1 Rxd3 34. Ra1 Rxd1
35. Rxa3 Rxf1+ 36. Kxf1 Rc8
37. h4 Rc2 (5383041)
00:00:09.26 5429kn 10/21/23 ---------------------------------------------------
00:00:12.79 7529kn 11/23/26 +1.785 32... Rc3 33. Kg1 Rxd3 34. Ra1 Qc3
35. Qe1 Qxe1 36. Raxe1 f6
37. Rd1 Rc3 (7529420)
00:00:18.36 10Mn 11/23/26 +2.073 32... Rhc8!
00:00:28.90 17Mn 11/22/23 +2.160 32... Rhc8 33. Qe1 Qxd3 34. Rd1 Qe2
35. Qxe2 Rxe2 36. Rc1 Rc4
37. Kh2 Rxb4 (17757104)
00:00:30.28 18Mn 11/22/23 ---------------------------------------------------
00:00:38.20 23Mn 12/23/27 +2.103 32... Rhc8 33. Qe1 Qxd3 34. Rd1 Qc4
35. Qh4 Qa2 36. Qf6+ Kg8
37. Ra1 Qe6 38. Kh2 Qd7 (23529377)
00:00:52.64 32Mn 12/25/27 ---------------------------------------------------
00:01:19.56 48Mn 13/27/31 +2.233 32... Rhc8 33. Qe1 Qxd3 34. Rd1 Qc4
35. Rb1 Qe6 36. Rf2 Rxf2
37. Qxf2 Rc2 38. Qe3 f6 (48761906)
00:02:08.73 77Mn 13/28/31 ---------------------------------------------------
>38...Qc4 is a blunder (eval about -1.3), whereas 38...Qd3+ is almost -4.4. The
>full PV is 38...Qd3+ 39.Kg2 Ne2 40.Qe1 Nf4+ 41.Rxf4 exf4 42.h4 a6 43.h5 Kh6
>44.hxg6 Kxg6 45.Kf2 Qg3+ 46.Kf1 Qh3+ 47.Kf2 Qxg4
>
I can't see why it is a blunder, but PostModernist agrees.
Chezzz likes Qd3+, but finds Qc4 better eventually:
time nodes depth score pv
00:00:00.00 6n 01/01/02 +1.705 1... e4 (6)
00:00:00.00 8n 01/01/02 +1.990 1... d5 (8)
00:00:00.00 12n 01/01/02 +2.005 1... f6 (12)
00:00:00.02 46n 01/01/02 ---------------------------------------------------
00:00:00.04 395n 02/04/05 +1.980 1... Qd3+ 2. Kh4 f6 (395)
00:00:00.05 684n 02/04/05 ---------------------------------------------------
00:00:00.05 2656n 03/06/08 +1.915 1... Qd3+ 2. Kg2 d5 3. h4 (2656)
00:00:00.07 4355n 03/06/08 +1.965 1... d5 2. Rf2 Qd3+ 3. Kh4 (4355)
00:00:00.07 4885n 03/06/08 +2.080 1... Qc4 2. Qe1 f6 (4885)
00:00:00.08 4937n 03/06/08 ---------------------------------------------------
00:00:00.08 7410n 04/06/08 +2.015 1... Qc4 2. Qb1 Ne2+ 3. Kh4 d5 (7410)
00:00:00.10 13kn 04/08/09 +2.185 1... Qd3+ 2. Kh2 Ne2 3. Qe1 d5 (13470)
00:00:00.13 15kn 04/08/12 ---------------------------------------------------
00:00:00.14 30kn 05/10/12 +2.155 1... Qd3+ 2. Kh2 d5 3. Qd1 Qxd1
4. Rxd1 (30371)
00:00:00.16 40kn 05/10/12 +2.235 1... Qc4 2. Qb1 Nc6 3. Rd1 d5 (40056)
00:00:00.22 54kn 05/11/14 ---------------------------------------------------
00:00:00.27 89kn 06/10/12 +2.510 1... Qc4 2. Qb1 Qc3+ 3. Kg2 Nc2
4. Rc1 Qd2+ 5. Kf3 Nxb4 (89621)
00:00:00.35 118kn 06/13/16 ---------------------------------------------------
00:00:00.54 231kn 07/13/15 +2.755 1... Qc4 2. Kg2 f5 3. Qxc4 bxc4
4. Rc1 d5 5. gxf5 (231833)
00:00:00.77 351kn 07/17/18 ---------------------------------------------------
00:00:01.32 683kn 08/16/18 +2.815 1... Qd3+ 2. Kg2 Nc2 3. Rf2 Nxb4
4. Qc7 Qd5+ 5. Kg3 Nd3
6. Qxa7 Nxf2 7. Qxf2 (683546)
00:00:01.63 849kn 08/16/18 ---------------------------------------------------
00:00:02.25 1222kn 09/19/20 +2.950 1... Qd3+ 2. Kg2 Nc2 3. Rf2 Nxb4
4. Qc7 Qd5+ 5. Kg3 Nc6
6. h4 e4 (1222754)
00:00:03.29 1823kn 09/19/20 ---------------------------------------------------
00:00:06.05 3552kn 10/21/24 +2.810 1... Qd3+ 2. Kg2 Nc2 3. Rf2 Nxb4
4. Qc7 Qd5+ 5. Kg3 Nc6
6. h4 b4 7. Rc2 (3552874)
00:00:08.16 4752kn 10/24/25 ---------------------------------------------------
00:00:12.27 7172kn 11/24/26 +3.050 1... Qd3+ 2. Kg2 Nc2 3. Kf2 Nxb4
4. Qe3 Qxe3+ 5. Kxe3 d5
6. Rc1 Na6 7. h4 f6 (7172486)
00:00:17.38 10Mn 11/25/28 ---------------------------------------------------
00:00:29.83 17Mn 12/25/28 +3.000 1... Qd3+ 2. Kg2 Nc2 3. Rf2 Nxb4
4. Qc7 Qd5+ 5. Kh2 Nc6
6. h4 e4 7. Kg3 Qe5+
8. Kg2 Qd5 (17028716)
00:00:43.16 24Mn 12/27/28 ---------------------------------------------------
00:00:57.72 33Mn 13/27/30 +3.025 1... Qd3+ 2. Kg2 Nc2 3. Rf2 Nxb4
4. Qc7 Qd5+ 5. Kg3 Nc6
6. h4 e4 7. a6 b4
8. Kf4 Qd4 (33130578)
00:02:42.97 96Mn 13/29/32 +3.320 1... Qc4 2. Qb1 Nc2 3. Kh4 Nxb4
4. Rc1 Qe2 5. Kg3 Qe3+
6. Kg2 Nd3 7. Rf1 Qe2+
8. Kg1 b4 (96048298)
00:02:48.33 99Mn 13/29/32 ---------------------------------------------------
00:04:18.60 154Mn 14/30/34 +3.370 1... Qc4 2. Qb1 Nc2 3. Kh4 Nxb4
4. Rc1 Qe2 5. Rf1 d5
6. Qd1 Qc4 7. Qf3 f5
8. Kg5 (154778146)
00:04:52.32 174Mn 14/30/34 ---------------------------------------------------
Maybe I am grossly misevaluating something? Passers for instance?
/David
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