Goofy

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Henk
Posts: 5855
Joined: Mon May 27, 2013 8:31 am

Goofy

Post by Henk » Thu Jan 02, 2020 2:45 pm

In this position Bb5 looses a piece after c5-c4. Skipper does not see that.
So you can't reduce pawn moves.

[d] rnbq1rk1/pp2ppbp/5np1/2pp4/2B5/2N1PN2/PPPP1PPP/R1BQ1RK1 w - d6 0 7

Code: Select all

 13	+0.07 	13.7M  	1:44.08	c4b5 
 12	 -0.05 	9.10M  	1:07.25	c4e2  b8c6  e2b5  a7a6  b5e2  c8d7  e2d3  c6b4  d3e2  d7f5  d2d3  f5d7 
 11	 -0.06 	1.73M  	0:11.03	c4b5  b8c6  b5a4  c8f5  d2d3  f5d7  a4b5  d8b8  c1d2  g7h6  a1b1 
 10	 -0.02 	691577	0:04.12	c4b5  b8c6  b5e2 
  9	+0.07 	288998	0:01.64	c4d3 
  8	 -0.05 	90758  	0:00.54	c4b5  b8c6  d2d4  c5d4  e3d4  a7a6  b5a4  c8d7 
  7	 -0.05 	39243  	0:00.24	c4b5  b8c6  b5a4  d5d4  c3b5  c8d7  a1b1 
  6	 -0.04 	16227  	0:00.12	c4b5  a7a6  b5a4  b7b5  a4b3  c8f5 
  5	 -0.03 	7230    	0:00.06	c4b5  c8f5  f3e5  g7h6  a1b1 
  4	 -0.02 	2399    	0:00.03	c4b5  f6g4  d2d4  c5c4 
  3	 -0.02 	483      	0:00.02	c4b5  b8c6  a1b1 
  2	 -0.03 	204      	0:00.01	c4b5  c8f5 
  1	 -0.09 	68        	0:00.01	c4b5 
  

Henk
Posts: 5855
Joined: Mon May 27, 2013 8:31 am

Re: Goofy

Post by Henk » Thu Jan 02, 2020 3:02 pm

When not applying LMR for pawn moves result is a bit better. No Bb5 at highest levels.

Code: Select all

 13	 -0.07 	31.2M  	3:50.52	c4e2  b8c6  d2d4  c5d4  f3d4  c6d4  e3d4  d8d6  e2f3  c8e6  c3b5  d6b4
 12	 -0.08 	12.1M  	1:22.84	c4e2  b8c6  d2d4  c5d4  f3d4  c6d4  e3d4  d8d6  c1g5  h7h6  c3b5  d6b4 
 11	+0.11 	5.31M  	0:34.08	c4d3 
 10	 -0.03 	2.48M  	0:15.28	c4e2  b8c6  e2b5  a7a6  b5e2  d5d4  c3b1  f6d5  e2c4  g7f6 
  9	 -0.06 	943191	0:05.64	c4b5  a7a6  b5e2  b8c6  d2d4  c5d4  e3d4  d8b6  a1b1 
  8	 -0.04 	197059	0:01.09	c4b5  a7a6  b5d3  c5c4  d3e2  c8g4  d2d3  d8c7  d3c4  d5c4 
  7	 -0.05 	89882  	0:00.53	c4b5  b8c6  d1e2  c8f5  b5a4  f5d7  a1b1 
  6	 -0.04 	22949  	0:00.14	c4b5  a7a6  b5a4  b7b5  a4b3  c8f5 
  5	 -0.03 	8684    	0:00.07	c4b5  c8f5  f3e5  g7h6  a1b1 
  4	 -0.02 	2960    	0:00.03	c4b5  f6g4  d2d4  c5c4 
  3	 -0.02 	634      	0:00.02	c4b5  b8c6  a1b1 
  2	 -0.04 	287      	0:00.02	c4b5  c8f5 
  1	+0.01 	63        	0:00.01	c4e2 
  

Pio
Posts: 123
Joined: Sat Feb 25, 2012 9:42 pm
Location: Stockholm
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Re: Goofy

Post by Pio » Thu Jan 02, 2020 4:16 pm

Henk wrote:
Thu Jan 02, 2020 2:45 pm
In this position Bb5 looses a piece after c5-c4. Skipper does not see that.
So you can't reduce pawn moves.

[d] rnbq1rk1/pp2ppbp/5np1/2pp4/2B5/2N1PN2/PPPP1PPP/R1BQ1RK1 w - d6 0 7

Code: Select all

 13	+0.07 	13.7M  	1:44.08	c4b5 
 12	 -0.05 	9.10M  	1:07.25	c4e2  b8c6  e2b5  a7a6  b5e2  c8d7  e2d3  c6b4  d3e2  d7f5  d2d3  f5d7 
 11	 -0.06 	1.73M  	0:11.03	c4b5  b8c6  b5a4  c8f5  d2d3  f5d7  a4b5  d8b8  c1d2  g7h6  a1b1 
 10	 -0.02 	691577	0:04.12	c4b5  b8c6  b5e2 
  9	+0.07 	288998	0:01.64	c4d3 
  8	 -0.05 	90758  	0:00.54	c4b5  b8c6  d2d4  c5d4  e3d4  a7a6  b5a4  c8d7 
  7	 -0.05 	39243  	0:00.24	c4b5  b8c6  b5a4  d5d4  c3b5  c8d7  a1b1 
  6	 -0.04 	16227  	0:00.12	c4b5  a7a6  b5a4  b7b5  a4b3  c8f5 
  5	 -0.03 	7230    	0:00.06	c4b5  c8f5  f3e5  g7h6  a1b1 
  4	 -0.02 	2399    	0:00.03	c4b5  f6g4  d2d4  c5c4 
  3	 -0.02 	483      	0:00.02	c4b5  b8c6  a1b1 
  2	 -0.03 	204      	0:00.01	c4b5  c8f5 
  1	 -0.09 	68        	0:00.01	c4b5 
  
What happens if you do not reduce pawn moves that attack pieces (but not pawns)?

Henk
Posts: 5855
Joined: Mon May 27, 2013 8:31 am

Re: Goofy

Post by Henk » Thu Jan 02, 2020 9:24 pm

Not reducing pawn moves attacking non-pawn pieces gives about similar result as not reducing all pawn moves. But might perform better in other positions I don't know.

Still needs level 11.
So in a 3, 5 or 10 minute game it still would go wrong.

Code: Select all

 13	 -0.07 	28.3M  	3:42.54	c4e2  b8c6  d2d4  d8a5  c1d2  c5d4  e3d4  a5b6  c3a4  b6c7  d2g5  f6e4  g5e3 
 12	 -0.09 	16.4M  	2:03.36	c4e2  b8c6  d2d4  c5d4  f3d4  c6d4  e3d4  d8b6  e2b5  a7a6  b5a4  c8f5 
 11	+0.03 	1.92M  	0:12.59	c4e2 
 10	+0.03 	583472	0:03.60	c4b5 
  9	 -0.04 	325672	0:01.95	c4e2  b8c6  e2b5  a7a6  b5a4  b7b5  a4b3  c8f5 
  8	 -0.05 	129487	0:00.78	c4b5  b8c6  d2d4  c5d4  e3d4  a7a6  b5a4  c8d7 
  7	 -0.04 	53361  	0:00.32	c4b5  a7a6  b5a4  b7b5  a4b3  b5b4  c3e2 
  6	 -0.04 	19144  	0:00.14	c4b5  a7a6  b5a4  b7b5  a4b3  c8f5 
  5	 -0.03 	7442    	0:00.05	c4b5  c8f5  f3e5  g7h6  a1b1 
  4	 -0.02 	2435    	0:00.03	c4b5  f6g4  d2d4  c5c4 
  3	 -0.02 	481      	0:00.02	c4b5  b8c6  a1b1 
  2	 -0.03 	202      	0:00.01	c4b5  c8f5 
  1	 -0.04 	66        	0:00.01	c4b5 
  
Maybe add an SEE too for if pawn move can be traded there is no danger.

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