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Subject: Re: H7 vs CM6

Author: allan johnson

Date: 20:34:44 02/20/99

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On February 20, 1999 at 00:51:11, Richard Harrison wrote:

>I have currently played five games (40/2) between CM6000 and HIARCS 7.  No
>special settings for CM and H7 has the –x option giving it 64MB for hash.  The
>two platforms are:  350MHz K6-2/64MB and a 200MHz PPRO/128MB.  The first two
>games, H7 was on the 350MHz machine where it won a game and lost one game.  The
>next three games, CM is using the 350MHz machine.  CM has won all of these games
>and leads the series 4 – 1.  I am posting game 5.  In this game, CM had a score
>hovering around zero until move 27.  Then after about a minute of thinking, it
>found Qd6 and the score shot up to over two points.  The score continued to rise
>to remainder of the game.  H7 on the other hand did not realize the position was
>unfavorable until move 42.  Before this, H7 felt as though the position was
>fairly equal.
>
>White:  CM6000 – 350MHz AMD K6-2 chip with 64MB
>Black:  HIARCS 7 – 200MHz Pentium Pro with 128MB
>Opening:  Alekhine – Modern Variation
>Time control:  40/2 20/1
>
>1)e4 Nf6 2)e5 Nd5 3)d4 d6 4)Nf3 dxe5 5)Nxe5 g6 6)Bc4 c6 7)O-O Bg7 8)Qf3 Be6
>9)Nc3 O-O 10)Re1 Nd7 11)Bb3 Nxe5 12)dxe5 Qd7 13)Nxd5 Bxd5  14)Qg3 Bxb3 15)axb3
>Qf5 16)c3 Qc2 17)b4 Rad8 18)Bg5 f6 19)exf6 exf6 20)Be3 Qxb2 21)Bd4 Rde8 22)Qd3
>a6 23)Bc5 Rxe1+ 24)Rxe1 Rf7 25)Re8+ Bf8 26)h4 a5 27)Qd6! Qc1+ 28)Kh2 Qh6 29)Qe6
>Qxh4+ 30)Kg1 Kg7 31)Bxf8+ Ref8 32)Rxf8 Kxf8 33)bxa5 Kg7 34)Qd7+ Kh6 35)Qxb7 Qe4
>36)Qb4 Qe1+ 37)Kh2 Qxf2 38)a6 Qa7 39)Qa4 c5 40)Qf4+ Kg7 41)Qd6 f5 42)c4 Kh6
>43)Kh1 Kg5 44)g3 Kh6 45)Kg2 Qa8+ 46)Kf2 Qh1 47)a7 Qh2+ 48)Ke3 Qg1+ 49)Kd2 Qg2+
>50)Kc1 Qf1+ 51)Kb2 Qg2+ 52)Ka3 Qc2 53)Qxc5 Qd3+ 54)Ka4 Qd7+ 55)Ka5 Qd8+ 56)Kb5
>Qe8+ 57)Kb6 Qh8 58)Qe3+ g5 59)Kc7 Qg7+ 60)Kc6 Qg8 61)Kd7 Qg7+ 62)Qe7 Qh8
>63)Qe6+Kh5 64)Qe8+ Qxe8+ 65)Kxe8 Kg4 66)c5 (Mate in 10) f4 67)c6 (M8) f3
>68)c7(M7) f2 69)c8(Q) Resigns
 Hi again Richard
 I entered the moves of the game into the CM6000 on my PC (MMX 166 64mb RAM)
up until move 27. I then set it on to autoplay.Yes CM6000 did find Qe6 and
it recorded a positive value of 2.14.It continued with the positive value
for the next 14 moves.The maximum it reached for white was 2.93.Eventually
though the game score finished at 0.00.White deemed the position as equal
by move 44.At this point I stopped the game Some may argue prematurely
 because there was still a possibility for either side to win.That is true,
however,the point of the execise for me was that move 27Qe6 was perhaps
 not the devasting move you suggested.
 It could be that on my PC CM6000 did not find all the best moves
(it found Qe6 in 2.47min).
It does  suggests also that Hiarcs did not play the position as well as
CM6000.I'm not convinced though that CM 6000 is  a stronger programme than
Hiarcs7.So what do other people think?.
Here are the moves played by CM6000 from move 27.The time setting was 200sec per
move.
 27Qd6 Qc1+ 28Kh2 Qh6 29Qe6 Kg7 30Rxf8 Rxf8 31Bxf8 Kxf8 32Qc8+ Ke7 33Qxb7
 Kd6 34Qb8+ Kd7 35bxa5 Qxh4+ 36Kg1 Qa4 37Qa7+ Kc8 38Qa6+ Kb8 39Qb6+ Kc8
 40f4 g5 41fxg5 Qd1+ 42Kh2 Qh5+ 43Kg3 Qg5+ 44Kf3 0.00
 Regards Allan



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