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Subject: Re: Avoid perpetual check?

Author: Jarkko Pesonen

Date: 16:38:52 09/03/04

did Kramnik win after Ne3.

I modified crafty so that if there are 10 checks by one side in a row
it evaluetes the position as draw.

Is there some limit in your opinion that would be realistic where
there could be more checks(10 or more in a row) in real game which is
not a DRAW

Jarkko

Below outout:

                8->   0.18   4.93   1. h7 Re7+ 2. Kf5 Re5+ 3. Kg4 Re4+
                                    4. Kh3 Re3+ 5. Kh4 Re4+ 6. Kg5 Re5+
                                    7. Kf4 Re8 8. hxg8=Q+ <HT>
                9->   0.45   4.94   1. h7 Re7+ 2. Kd6 Re6+ 3. Kc5 Re8
			            4. hxg8=Q+ Rxg8 5. Rd7 Re8 6. Ne7 Rf8
                                    7. Kc6 Rf3
               10->   1.44   4.93   1. h7 Re7+ 2. Kd6 Re6+ 3. Kc5 Rc6+
                                    4. Kd4 Rc4+ 5. Ke5 Re4+ 6. Kf5 Re5+
                                    7. Kg4 Re4+ 8. Kh3 Re3+ 9. Kh4 Re4+
                                    <HT>
               11->   4.22   4.93   1. h7 Re7+ 2. Kd6 Re6+ 3. Kc5 Rc6+
                                    4. Kd4 Rc4+ 5. Ke5 Re4+ 6. Kf5 Re5+
                                    7. Kg4 Re4+ 8. Kh3 Re3+ 9. Kh4 Re4+
                                    <HT>
               12     4.24     -1   1. h7
               12     4.26   0.01   1. h7 Re7+ 2. Kd6 Re6+ 3. Kc5 Rc6+
                                    4. Kd4 Rc4+ 5. Ke5 Re4+ 6. Kf5 Re5+
                                    7. Kg4 Re4+ 8. Kh3 Re3+ 9. Kh4 Re4+
                                    10. Kh5 Re5+
               12    21.19   1.05   1. hxg7+ Kxg7 2. Kf5 Nh6+ 3. Kg5 Nf7+
                                    4. gxf7 Kxf7 5. Kh5 Ra5 6. Rd6 Ra4
                                    7. Nf6 Kg7 8. Kg5 Kf7 9. Rd7+ Ke6
               12    46.69   1.12   1. Ne3 Re7+ 2. Kf4 gxh6 3. Rd6 Ra7
                                    4. Nf5 Ra4+ 5. Kf3 Ra3+ 6. Kg4 Ra4+
                                    7. Kf3 <HT>
               12->  50.55   1.12   1. Ne3 Re7+ 2. Kf4 gxh6 3. Rd6 Ra7
                                    4. Nf5 Ra4+ 5. Kf3 Ra3+ 6. Kg4 Ra4+
                                    7. Kf3 <HT>
               13->   1:39   1.10   1. Ne3 Re7+ 2. Kf4 gxh6 3. Rd6 Ra7
                                    4. Nf5 Ra4+ 5. Kf3 Ra3+ 6. Kg4 Ra4+
                                    7. Kh3 Ra3+ 8. Kh4 Ra4+ 9. Kg3 h5 <HT>
               14->   5:31   1.09   1. Ne3 Re7+ 2. Kf4 gxh6 3. Rd6 Ra7
                                    4. Nf5 Ra4+ 5. Kf3 Ra3+ 6. Kg4 Ra4+
                                    7. Kh3 Ra3+ 8. Kh4 Ra4+ 9. Kg3 h5
		                    10. Re6 Rg4+ 11. Kh3
               15->  15:14   1.05   1. Ne3 Re7+ 2. Kf4 gxh6 3. Rd6 Rc7
                                    4. Nf5 Rc4+ 5. Kf3 Rc3+ 6. Ke4 Rc4+
                                    7. Ke3 Rc3+ 8. Ke2 Rc2+ 9. Kd3 Rc7
                                    10. Rd8 Rc6 11. Rd6

Re: Avoid perpetual check? Robert Hyatt 19:55:43 09/03/04
- Re: Avoid perpetual check? Uri Blass 04:01:05 09/04/04
  - Re: Avoid perpetual check? Michael Henderson 13:56:33 09/04/04
    - Re: Avoid perpetual check? Uri Blass 14:01:40 09/04/04
      - Re: Avoid perpetual check? Chris Welty 14:06:50 09/04/04
        
        Re: Avoid perpetual check? Uri Blass 14:22:40 09/04/04
        
        Re: Avoid perpetual check? Ed Schröder 08:02:17 09/05/04
        
        Re: Avoid perpetual check? Uri Blass 08:16:31 09/05/04
        
        Re: Avoid perpetual check? Ed Schröder 12:28:06 09/05/04
        
        Re: Avoid perpetual check? Uri Blass 13:09:54 09/05/04
        
        Re: Avoid perpetual check? Uri Blass 08:20:23 09/05/04
        
        Re: Avoid perpetual check? Michael Henderson 21:47:55 09/04/04
        
        Re: Avoid perpetual check? Uri Blass 23:13:49 09/04/04

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