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Subject: Re: Position from Yace-Crafty 18.6

Author: Ferdinand S. Mosca

Date: 00:13:31 03/18/01

Go up one level in this thread


On March 17, 2001 at 09:49:49, Uri Blass wrote:

>On March 17, 2001 at 09:35:41, Ferdinand S. Mosca wrote:
>
>>
>>
>>Yace-Crafty 18.6 (1-0)
>>/tc 75min /inc 30sec
>>P3_667_128_24_nalimov_winborad
>>
>>[D]8/1p3pkp/p4p2/P3pP2/1PR5/3r2PP/3b2K1/1R6 b - - 0 1
>>
>>Although white is better, but Crafty played here Rc3?
>>Does Crafty see something of a fortress from it, or it likes
>>to play B vs R than RB vs RR?
>>
>>How do other programs evaluate this position?
>>
>>Regards,
>>Dinan
>
>Yace also likes Rc3
>
>Yace at depth 13:
>Rc3 Rxc3 Bxc3 Kf3 h5 Rb3 Bd2...
>
>+1.00 for white

Hi Uri,

Around this depth, you are right, but
I don't think Yace likes Rc3, based from the following analysis.

It found Bc3 at around 1 min and 33 sec with a score of -1.32 on depth 14.
It likes Rd6 at around 3 min and 14.sec with a score of -1.20 on depth 14.

white ( 1): input: setb 8/1p3pkp/p4p2/P3pP2/1PR5/3r2PP/3b2K1/1R6 b - - 0 1
Stored 0 learned positions into hash table
black ( 1): input: a
usetime = 99999.00, mintime = 99999.00 maxtime = 99999.00 tl 99999.00 ml 0
         8   0.004  -4.87  1t  1...Rxg3+ 2. Kxg3 {-490}
        16   0.008  -3.37  1t  1...Bxb4 2. Rbxb4 {-340}
        17   0.011  -0.53  1t  1...b5 {-70}
        42   0.015  -0.53  1.  1...b5 {-70}
        48   0.019  -1.32  2-- 1...b5 2. axb6 Bxb4 {-70}
        84   0.023  -1.95  2t  1...b5 2. axb6 {-150}
       162   0.027  -1.32  2t+ 1...h5 2. g4 {-70}
       205   0.031  -0.70  2t  1...h5 2. Re4 {-70}
       358   0.035  -0.70  2.  1...h5 2. Re4 {-70}
       644   0.039  -0.61  3t  1...h5 2. Re4 b5 {-70}
      1110   0.043  -0.61  3.  1...h5 2. Re4 b5 {-70}
      2348   0.049  -1.23  4-- 1...h5 2. Rc7 Kh6 3. Rxf7 {-150}
      2762   0.054  -1.35  4t  1...h5 2. Rc7 h4 3. gxh4 {-150}
      4811   0.062  -1.32  4t+ 1...Kh6 2. Rh4+ Kg7 3. Rg4+ Kh6 4. Rg7
      5321   0.067  -1.28  4t  1...Kh6 2. Rc7 Kg5 3. Rxb7 Kxf5 4. Rxf7 {-150}
      5991   0.072  -0.97  4t+ 1...Rc3 2. Rg4+ Kh6 3. Rd1 Bg5 4. Rxg5 fxg5 {80}
      7069   0.078  -0.77  4t  1...Rc3 2. Rg4+ Kf8 3. Re4 h5 {-70}
     10749   0.092  -0.77  4.  1...Rc3 2. Rg4+ Kf8 3. Re4 h5 {-70}
     14417   0.104  -0.76  5t  1...Rc3 2. Rxc3 Bxc3 3. Rb3 Bd4 4. g4 {-70}
     24492   0.128  -0.76  5.  1...Rc3 2. Rxc3 Bxc3 3. Rb3 Bd4 4. g4 {-70}
     33960   0.153  -0.84  6t  1...Rc3 2. Re4 Re3 3. Rxe3 Bxe3 4. Kf3 Bg5 {-70}
     64278   0.229  -0.83  6t+ 1...Bc3 2. Re4 Rd2+ 3. Kf3 Rd3+ 4. Re3 Rxe3+ 5.
                               Kf2 {430}
     73971   0.263  -0.82  6t  1...Bc3 2. g4 Bd4 3. b5 Bc3 4. bxa6 bxa6 {-70}
     85187   0.292  -0.82  6.  1...Bc3 2. g4 Bd4 3. b5 Bc3 4. bxa6 bxa6 {-70}
    114057   0.365  -0.85  7t  1...Bc3 2. g4 Bd4 3. Rc7 b5 4. Re7 Bc3 {-70}
    244173   0.659  -0.84  7t+ 1...Bg5 2. Re4 h5 3. Rbe1 Bd2 4. Rd1 Kh6 {-70}
    269949   0.727  -0.83  7t  1...Bg5 2. Rc7 Rd2+ 3. Kf1 Be3 4. b5 axb5 5.
                               Rxb7 {-70}
    278510   0.754  -0.83  7.  1...Bg5 2. Rc7 Rd2+ 3. Kf1 Be3 4. b5 axb5 5.
                               Rxb7 {-70}
    348293   0.935  -0.88  8t  1...Bg5 2. Rc7 Rd2+ 3. Kf1 Rd3 4. h4 Bh6 5. g4
                               b5 {-70}
    768081   1.922  -0.88  8.  1...Bg5 2. Rc7 Rd2+ 3. Kf1 Rd3 4. h4 Bh6 5. g4
                               b5 {-70}
    988480   2.470  -0.88  9t  1...Bg5 2. Rc7 Rd2+ 3. Kh1 Rd3 4. h4 Be3 5.
                               Rxb7 Bf2 6. b5 axb5 {-70}
   1757865   4.198  -0.88  9.  1...Bg5 2. Rc7 Rd2+ 3. Kh1 Rd3 4. h4 Be3 5.
                               Rxb7 Bf2 6. b5 axb5 {-70}
   1919327   4.573  -1.28 10-- 1...Bg5 2. Rc7 Rd2+ 3. Kh1 Rd3 4. Rxb7 Rxg3 5.
                               Rb6 Bd2 6. Rxa6 Rf3 {-150}
   2120256   5.055  -1.38 10t  1...Bg5 2. Rc7 Rd2+ 3. Kh1 Rd3 4. Rxb7 Rxg3 5.
                               Rb6 Rxh3+ 6. Kg2 Ra3 7. Rxa6 {-70}
   2234068   5.339  -1.37 10t+ 1...Bc3 2. Rb3 Rd2+ 3. Kf3 Bd4 4. Rc7 b5 5. Rb2
                               Bxb2 6. g4 {430}
   2536136   6.049  -1.09 10t  1...Bc3 2. Rc7 Rd2+ 3. Kh1 Bd4 4. Rxb7 Rd3 5.
                               b5 Rxg3 6. bxa6 Rxh3+ 7. Kg2 {-70}
   2631714   6.280  -1.08 10t+ 1...Rc3 2. Rxc3 Bxc3 3. b5
   3001162   7.158  -0.94 10t  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Ke4 Kh6 5.
                               Rb3 Bd4 6. Rd3 Kg5 {-70}
   4312400  10.129  -0.94 10.  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Ke4 Kh6 5.
                               Rb3 Bd4 6. Rd3 Kg5 {-70}
   5174977  12.114  -0.96 11t  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Rb3 Bd2 5.
                               Ke4 Kh6 6. Kd3 Bg5 7. Ke4 {-70}
   8071261  18.570  -0.96 11.  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Rb3 Bd2 5.
                               Ke4 Kh6 6. Kd3 Bg5 7. Ke4 {-70}
   9006897  20.691  -0.99 12t  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Ke4 Kf8 5. b5
                               Bxa5 6. bxa6 bxa6 7. Ra1 Bc3 8. Rxa6 {-70}
  16999858  40.405  -0.99 12.  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Ke4 Kf8 5. b5
                               Bxa5 6. bxa6 bxa6 7. Ra1 Bc3 8. Rxa6 {-70}
  19869389  47.264  -0.96 13t  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Rb3 Bd2 5.
                               Ke4 Kh6 6. Kd3 Bc1 7. Rb1 Bg5 8. Ke4 {HT} {-70}
  29585861  1:10.4  -0.96 13.  1...Rc3 2. Rxc3 Bxc3 3. Kf3 h5 4. Rb3 Bd2 5.
                               Ke4 Kh6 6. Kd3 Bc1 7. Rb1 Bg5 8. Ke4 {-70}
  34001207  1:20.7  -1.33 14t  1...Rc3 2. Rxc3 Bxc3 3. Rb3 Bd4 4. b5 axb5 5.
                               Rxb5 Bc3 6. Kf3 h5 7. Ke4 Bd2 8. Rxb7 Bxa5 9.
                               Re7 {-70}
  39028873  1:33.7  -1.32 14t+ 1...Bc3 2. g4 Bd4 3. Rc7 Rd2+ 4. Kh1 Rd3 5.
                               Rxb7 Rxh3+ 6. Kg2 Rd3 7. Rh1
  53191442  2:09.1  -1.21 14t  1...Bc3 2. Rc7 e4 3. Rb3 Be5 4. Rxd3 exd3 5.
                               Rd7 Bc3 6. Rxd3 Bxb4 7. Rd7 Bxa5 8. Rxb7 Bc3 9.
                               Kf3 {-70}
  79925711  3:14.3  -1.20 14t+ 1...Rd6 2. Kf3 Bg5 3. Ke4 Rd2 4. Rc7 Rd4+ 5.
                               Kf3 e4+ 6. Ke2 Rd3 7. Rxb7 Rxg3 8. Kf2 Rxh3 9.
                               Rb6 e3+ 10. Kf1 {10}
 108638903  4:28.5  -1.08 14t  1...Rd6 2. Kf2 Bh6 3. Rb2 b5 4. axb6 Rxb6 5. g4
                               Bg5 6. Rbc2 Rd6 7. Re4 Bf4 8. Rc7 Rd3 {-70}
 114783179  4:44.0  -1.08 14u. 1...Rd6 2. Kf2 Bh6 3. Rb2 b5 4. axb6 Rxb6 5. g4
                               Bg5 6. Rbc2 Rd6 7. Re4 Bf4 8. Rc7 Rd3 {-70}
114783179 Nodes, 21.81% Leavenodes, 404098 Nodes/sec
71896396 eval, 65.49% score, 339576330 genmoves, 10.40% captures le 464/292
ext: pawn 131688, rcp 737329, chk 3444465, repchk 545740, null 1872, prune
5145889
htable: 85220625 store, 0 rejected, 113820269 probe, 35.1% f/p, 46.9% f/s
entries 5333331 age 1 renew 0
egtb probes 0, found 0

Regards,
dinan


>
>There is no fortress and black simply have other problems if it does not trade
>rooks.
>
>Uri



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