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Subject: Re: a classic (Micro WCh. 1993)

Author: Uri Blass

Date: 00:53:36 12/11/02

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On December 11, 2002 at 03:39:14, Vincent Lejeune wrote:

>On December 11, 2002 at 01:52:21, Slater Wold wrote:
>
>>On December 11, 2002 at 00:54:17, Mike S. wrote:
>>
>>>The King - Nimzo [B99]
>>>12th World Microcomputer Chess Champion, 1993
>>>[D]r7/8/4p2k/5bR1/3p3r/Np6/1P6/K5R1 w - - 0 59
>>>59.Rh5+ Kxh5 60.Rg5+ Kh6 ½-½
>>>
>>>This stalemate idea saved Nimzo 3rd place in the Micro WM, Munich 1993.
>>>http://www.mark-weeks.com/chess/93wm$tix.htm
>>>
>>>Drawish eval required!
>>>
>>>P3/700 MHz, 64 MB hash:
>>>
>>>Analysis by List 504:
>>>
>>>59.R5g3 d3 60.Rd1 Rh2 61.Rdxd3
>>>  -+  (-4.30)   Depth: 5   00:00:00  3kN
>>>(...)
>>>59.R5g2 e5 60.Rf2 Rh5 61.Rgf1 Kg6 62.Rf3 d3 63.Rg3+ Rg5 64.Rxf5 Rxg3
>>>  -+  (-4.75)   Depth: 11   00:00:04  1525kN
>>>59.Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rxh5 d3 64.Rh2 Kf7 65.Rf2
>>>Ke7 66.Kb1
>>>  -+  (-4.53)   Depth: 11   00:00:04  1540kN
>>>59.Rh5+ Kxh5 60.Rg5+ Kh6 61.Rg6+ Kh7 62.Rg7+ Kh8 63.Rh7+ Kg8 64.Rxh4 d3 65.Rd4
>>>e5 66.Rd5 Re8 67.Nc4
>>>  -+  (-4.33)   Depth: 12   00:00:05  1699kN
>>>59.Rh5+!
>>>  -+  (-3.93)   Depth: 13   00:00:06  1977kN
>>>59.Rh5+ Kxh5 60.Rg5+ Kh6 61.Rg6+ Kh7 62.Rg7+ Kh8 63.Rh7+ Kg8 64.Rg7+ Kf8 65.Rf7+
>>>Ke8 66.Re7+ Kd8 67.Rd7+ Kc8 68.Rc7+ Kb8 69.Rb7+ Kxb7
>>>  =  (0.15)   Depth: 13   00:00:06  1983kN
>>>59.Rh5+ Kxh5 60.Rg5+ Kh6 61.Rg6+ Kh7 62.Rg7+ Kh8 63.Rh7+ Kg8 64.Rg7+ Kf8 65.Rf7+
>>>Ke8 66.Re7+ Kd8 67.Rd7+ Kc8 68.Rc7+ Kb8 69.Rb7+ Kxb7
>>>  =  (0.15)   Depth: 14   00:00:06  2024kN
>>>
>>>
>>>Analysis by Chess Tiger 14.0:
>>>
>>>59.R5g2 e5 60.Rg5 Rh1 61.Rxh1+ Kxg5 62.Rd1
>>>  -+  (-3.66)   Depth: 8   00:00:00  99kN
>>>(...)
>>>59.Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rxh5 d3 64.Rh2 e5 65.Rh5 d2
>>>66.Rg5+ Kh7 67.Rg1 e4 68.Rd1
>>>  -+  (-4.24)   Depth: 14   00:00:08  1931kN
>>>59.Rh5+
>>>  -+  (-3.34)   Depth: 15   00:00:10  2416kN
>>>59.Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kf8 64.Rf7+ Ke8 65.Re7+
>>>Kd8 66.Rd7+ Kc8 67.Rc7+
>>>  ³  (-0.36)   Depth: 15   00:00:10  2426kN
>>>59.Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kf8 64.Rf7+ Ke8 65.Re7+
>>>Kd8 66.Rd7+ Kc8 67.Rc7+
>>>  ³  (-0.36)   Depth: 16   00:00:10  2443kN
>>>
>>>Tiger is "not so sure..." (-0.36), but "chases" the black king correctly, in the
>>>pv.
>>>
>>>
>>>Analysis by Goliath Light 1.5:
>>>
>>>59.Rg7 e5 60.Rf7
>>>  -+  (-4.20)   Depth: 6/10   00:00:00
>>>(...)
>>>59.R5g3 Bc2 60.Rf3 e5 61.Rf6+ Kh5 62.Re6 Re4 63.Reg6
>>>  -+  (-4.29)   Depth: 9/27   00:00:01  459kN
>>>59.Rh5+
>>>  =  (0.00)   Depth: 9/27   00:00:01  740kN
>>>59.Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kf8 64.Rg8+ Kf7 65.Rg7+
>>>Kf6 66.Rg6+ Bxg6
>>>  =  (0.00)   Depth: 9/27   00:00:01  748kN
>>>59.Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kf8 64.Rg8+ Kf7 65.Rg7+
>>>Kf6 66.Rg6+ Bxg6
>>>
>>>1 second! Goliath Light has a special talent for perpetuals (the engine Patzer
>>>too as I'm being told).
>>>
>>>Regards,
>>>M.Scheidl
>>
>>This is not a draw.
>>
>>Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kf8 64.Rg8+ Kf7 65.Rg7+
>>Kf6 66.Rg6+ Bxg6 is wrong.
>>
>>Rh5+ Rxh5 60.Rg6+ Kh7 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kf8 64.Rg8+ Ke7 65.Rg7+
>>Kd6! and the game is won for black.
>
>
>why not "64.Rf7+" in the last line ?????

The point of the poster was that the main line is not a draw.
Movei on 1000Mhz can see the draw in 2.38 seconds

10776 >first : analyze
11276 <first : 1 -260 0 36 g5g7
11276 <first : 2 -250 0 117 g5g7 h4h1
11286 <first : 2 -250 1 278 g5g7 h4h1
11296 <first : 3 -322 2 658 g5g7 h4h1 g1h1 h6g7 h1f1
11296 <first : 3 -321 2 866 g5h5
11306 <first : 3 -292 3 913 g5h5
11306 <first : 3 -287 3 1043 g5h5 h4h5 g1g6 h6h7 g6g7 h7h8 g7h7 h8g8 h7h5
11316 <first : 3 -286 4 1285 g5g3
11316 <first : 3 -267 4 1460 g5g3 d4d3 g3g7
11326 <first : 3 -267 5 1574 g5g3 d4d3 g3g7
11336 <first : 4 -267 6 2292 g5g3 d4d3 g1f1 h6h7
11336 <first : 4 -266 6 2779 g5g7
11346 <first : 4 -267 7 3104 g5g3 d4d3 g1f1 h6h7
11356 <first : 4 -267 8 3331 g5g3 d4d3 g1f1 h6h7
11366 <first : 5 -263 9 5191 g5g3 d4d3 g3e3 h6h7 e3e1
11377 <first : 5 -263 10 6702 g5g3 d4d3 g3e3 h6h7 e3e1
11397 <first : 6 -289 12 9931 g5g3 d4d3 g1f1 h6h7 g3g2 h7h8
11427 <first : 6 -288 15 15744 g5g2
11487 <first : 6 -273 21 26051 g5g2 d4d3 g1f1 h4g4 g2h2 h6g7 f1d1
11497 <first : 6 -273 22 26644 g5g2 d4d3 g1f1 h4g4 g2h2 h6g7 f1d1
11687 <first : 7 -263 41 65482 g5g2 d4d3 g1c1 f5e4 g2f2 h6g7 f2f1
11737 <first : 7 -263 46 75148 g5g2 d4d3 g1c1 f5e4 g2f2 h6g7 f2f1
11997 <first : 8 -285 72 126669 g5g2 d4d3 g1c1 f5e4 g2f2 h6g7 c1c7 g7g8 f2f1
12067 <first : 8 -284 79 139758 g5g3
12268 <first : 8 -282 99 180751 g5g3 d4d3 g3g2 e6e5 g2f2 h4h5 g1c1 h6h7
12428 <first : 8 -282 115 215646 g5g3 d4d3 g3g2 e6e5 g2f2 h4h5 g1c1 h6h7
12789 >first : .
13049 <first : 9 -277 177 342182 g5g3 d4d3 g3g2 a8c8 g2d2 h6h7 a3b5 h7h8 a1b1
13470 <first : 9 -276 219 429262 g5g2
13600 <first : 9 -277 232 455556 g5g3 d4d3 g3g2 a8c8 g2d2 h6h7 a3b5 h7h8 a1b1
13640 <first : 9 -276 236 461948 g5h5
13640 <first : 9 -247 236 462182 g5h5
13660 <first : 9 0 238 465966 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
13690 <first : 9 0 241 470271 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
13730 <first : 10 0 245 477969 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
13760 <first : 10 0 248 483987 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
13840 <first : 11 0 256 500588 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
13900 <first : 11 0 262 511943 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
14030 <first : 12 0 275 540533 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
14140 <first : 12 0 286 564919 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
14331 <first : 13 0 305 608378 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
14571 <first : 13 0 329 662363 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
14902 <first : 14 0 362 737643 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
15332 <first : 14 0 405 835138 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
15943 <first : 15 0 466 974932 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7 h8g8
h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
16684 <first : 15 0 540 1130658 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7
h8g8 h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7
17896 <first : 16 0 662 1398431 g5h5 h6h5 g1g5 h5h6 g5g6 h6h7 g6g7 h7h8 g7h7
h8g8 h7g7 g8f8 g7f7 f8e8 f7e7 e8f8 e7f7


Uri



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