Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Interesting Game by Chop

Author: Will Singleton

Date: 23:42:49 06/12/00

Go up one level in this thread


On June 12, 2000 at 16:11:39, Peter McKenzie wrote:

>On June 12, 2000 at 09:40:20, Andrew Williams wrote:
>
>>On June 12, 2000 at 05:10:54, Peter McKenzie wrote:
>>
>>>I watched following game on ICC this evening.  The game was funny because I'd
>>>just been thinking that Chop (Beadle) sacs the exchange too often and was
>>>thinking of ways to fix this problem.  When I saw Rxa4 come along in this game I
>>>though 'oh now, here we go again', but as events unfolded Chop whipped up a cool
>>>attack.  These are the sort of games that keep me interested in this silly hobby
>>>of computer chess :-)  I don't think you'll find the Rf8-f5-d5-d1 rook walk in
>>>too many text books.
>>>
>>
>>Hi Pete,
>>
>>Contrary to what I was saying on ICC the other day, PM likes Rxa4 from ply 1.
>>Clearly that wide-open King position is just too much to resist. By depth 12,
>>however, the score is still -0.60. What score did chop think it was getting
>
>The score after Rxa4 was about -0.1, quite high compared to most of the other
>scores I've seen here (except Fritz).
>The score jumped quite a bit after white played e5 so maybe that was a mistake.
>Chop doesn't like 26.e5 at all, I let it search for a while and it seems to like
>26.f4 best.

You're right about 26.e5, that was a blunder.  Up till then, white has it won,
though the position is dangerous.  I think Amateur played this game very well,
except for that one move.

I tried analyzing it, once using the epd, once playing thru the game using my
pgn reader, and once setting it up manually (and manually setting white
castled).  I got three different analyses, indicating I'm doing something wrong
in figuring castle privileges, which affects king-safety.  The move 26.e5 is
played only when using the pgn readed, which should mimic game conditionns.  So,
obviously something is wrong.

epd...
ply   score     time     nodes   pv

  5      90     0.52     37437   a5 Qb4 Ka1 Qxa5 Qd2 Qa3
  5     103     1.07     51436   Rb1 Qxa4 Rd1 c4 Ka1
  5     104     1.21     65369   e5 Nd5 Qe1 Pxe5 f4
  6      76     2.11    104803   e5 Nd5 Qe1 Pxe5 Rd2 Rf5
  6      91     4.21    211038   a5 Nc6 Rd2 Nxa5 Rb1 e5
  6      96     5.39    281523   f4 Qxa4 Qb3 Qb4 Qxb4 Pxb4 Kb3
  7      95     7.17    364741   f4 Qxa4 Qb3 Qb4 a3 Qxb3 Kxb3 Kd7
  7     101    11.43    614214   Ka1 Nc6 Qb3 Qxb3 Pxb3 Nd4 f4 Nxb3 Kb2
  8      67    15.42    842555   Ka1 Nc6 Qb3 Qxb3 Pxb3 Nd4 Rd3 Rxf2 Rd1
  8      82    21.48   1193904   Rd2 Nc6 Kb1 Qxa4 Rb2 Qd4 Qe2 c4
  8      93    24.53   1372224   f4 Qxa4 Qb3 Qxe4 Qb8 Kf7 Qxc7 Qg2 Ka1 d5 Qxc5
Qxg3

pgn (game condition)...
ply   score     time     nodes    pv

  5     168     1.22     51629    e5 Nf5 Qe1 Nd4 Pxd6 Pxd6
  5     177     1.38     64483    Ka1 Qxa4 f4 Rf6 Rb1
  5     181     1.56     82354    Rd2 Qb4 Ka1 Qxa4 Rb1 c4
  5     192     2.25    102611    Rb1 Qxa4 Rd1 Rf6 Qe2
  6     177     3.09    132678    Rb1 Qxa4 Rd1 Rf6 g4 c4
  6     185     6.31    319022    e5 Qb4 Ka1 Nd5 Qe1 Qxe1 Rxe1 Rxf2 Pxd6 Pxd6
  7     111    12.39    668009    e5 Nd5 Qd2 Qxa4 Rh4 Qb5 Ka1 Pxe5
  7     163    16.28    872609    h6 Qb4 Ka1 Qxa4 Rd2 Kd8 Rb1 Kc8
  7     168    20.15   1081306    a5 Nc6 f4 Qb5 Ka1 Kd7 Rb1 Qxa5
  7     177    22.42   1225653    Rb1 Qxa4 Rd1 Kd7 Ka1 Kc8 Rb3
  8     138    30.43   1675875    Rb1 Qxa4 Ka1 Kd7 Rb2 Nc6 Rc1 Nd4
  8     162    41.59   2320322    Rd2 Nc6 Kb1 Qxa4 Rb2 Qd4 Qe2 c4

manual...
ply   score     time     nodes    pv

  5      81     0.48     34618    a5 Qb4 Ka1 Qxa5 Rb1 Rf6
  5      83     1.09     51664    e5 Nd5 Qe1 Pxe5 Ka3
  5      86     1.32     73983    Rd2 Qb4 Ka1 Qxa4 Rb1 c4
  5      88     1.51     89268    Rb1 Qxa4 Rd1 c4 Ka1
  6      69     2.28    124218    Rb1 Qxa4 Rc1 c4 Ka1 d5
  6      79     4.56    245530    a5 Nc6 Rc1 Nxa5 Rd1 Qb4 Ka1
  7      73     8.56    467376    a5 Nc6 f4 Qb4 Ka1
  7      86    10.25    554203    Rb1 Qxa4 Rd1 c4 Ka1 Nc6 Qe2
  8      78    15.55    876609    Rb1 Qxa4 Ka1 Nc6 Rb7 Nd4 Rb8 Ke7 Rb1
  8      81    26.08   1466308    a5 Nc6 Rd2 Qb4 Ka1 Qxa5 Rb1 Nd4 Rb7




This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.