Don Dailey you need to teach underpromotion to Komodo!

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Uri Blass
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Re: Don Dailey you need to teach underpromotion to Komodo!

Post by Uri Blass »

hgm wrote:
pichy wrote:PS: Notice that Komodo think like that only when you give the Black side to play, but if you give it the White side it will find the correct underpromotion to a Rook. I would like to see the Analysis of Don Dailey experimental program (to be released soon) which he already fixed.
That is obviously not true. In Uri's post Komodo is clearly thinking for white, and it does not find the under-promotion, but on the contrary wants to promote to Queen (and thinks it is won: +2.28 or #3).
Note that in my post I did not play a game against komodo from the initial position of this thread and it is possible that the behaviour of komodo3 in a game is different(meaning it see that promotion to a queen leads to a stalemate earlier and remember it in the hash tables but not if I give it the position that it needs to promote to a rook with no memory of hash tables from previous moves).

I only gave komodo the diagram that it should promote to a rook and it
suggested promotion to a queen with a wrong mate score.
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hgm
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Location: Amsterdam
Full name: H G Muller

Re: Don Dailey you need to teach underpromotion to Komodo!

Post by hgm »

pichy wrote:It is very simple to test it, simply use that same computer that you are using to to post here, and first play this ending versus Komodo 32 3 32bit as White and then reverse side you take Black and let Komodo play with White :wink:
Simple? Without having Komodo? How do you imagine that?
pichy
Posts: 2564
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Re: Don Dailey you need to teach underpromotion to Komodo!

Post by pichy »

hgm wrote:
pichy wrote:It is very simple to test it, simply use that same computer that you are using to to post here, and first play this ending versus Komodo 32 3 32bit as White and then reverse side you take Black and let Komodo play with White :wink:
Simple? Without having Komodo? How do you imagine that?

Here download Komodo 3 for Windows, if you want Komodo 4 you will have to pay:
:roll:
http://komodochess.com/downloads.php

You will also need to download a chess GUI like Arena 3.0 if you don't already have it:
http://www.playwitharena.com/?Download
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Don
Posts: 5106
Joined: Tue Apr 29, 2008 4:27 pm

Re: Don Dailey you need to teach underpromotion to Komodo!

Post by Don »

pichy wrote:
hgm wrote:
Uri Blass wrote:I do not know about komodo4 because I do not have it but komodo3 has some stalemate bug so it does not see the underpromtion.


New game
8/2P5/8/8/3r4/8/2K5/k7 w - - 0 1

Analysis by Komodo32 3 32bit:

1.c7-c8Q Rd4-a4 2.Qc8-c3+
+- (2.28) Depth: 1 00:00:00
1.c7-c8Q Rd4-a4 2.Qc8-c3+ Ka1-a2 3.Qc3-b2#
+- (#3) Depth: 2 00:00:00

(, 16.04.2012)
I don't get it. If Komodo can't see the stalemate, it should always think the position is won, wheter it considers Rook promotions or not, because promotion to Q in the Saavedra line also easily wins if you discard the stalemate. Yet, in the founding post of this thread, Komodo reports 0.00 scores. The only way to get those is by thinking you can force a stalemate.

Are we talking about different Komodo versions now?
That is the point here Komodo 3 can't predict the next best move, if Komodo see the correct move following promotion to a Queen it should also play Rc4+ NOT Rd4-a4 to force the Stalemate. :wink:

PS: Notice that Komodo think like that only when you give the Black side to play, but if you give it the White side it will find the correct underpromotion to a Rook. I would like to see the Analysis of Don Dailey experimental program (to be released soon) which he already fixed.
Here is some analysis of the latest development version of Komodo from the original position. It has failed on the 27th iteration but the score is huge so I think it will announce mate, but I cannot wait for it as it is taking a long time. Score is over 18 pawns at depth 27.

Code: Select all

 - - - - - - - -
 - - - - - - - -
 - K P - - - - -
 - - - r - - - -
 - - - - - - - -
 - - - - - - - -
 - - - - - - - -
 k - - - - - - -

DEPTH      TIME         NODES      KNPS    SCORE   PRINCIPAL VARIATION
-----  --------  ------------  --------  -------   -------------------------------------------------
    1       0.0           200     200.0     1.51   c6c7 a1b2 c7c8q 
    2       0.0           562     281.0     1.73   c6c7 a1b2 c7c8q b2b3 c8h3 
    3       0.0          2251     562.8     1.68   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8c5 
    4       0.0          2579     644.8     1.68   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8c5 
    5       0.0         10503     875.2     1.61   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4a5 d4d5 a5b6 d5d6 
    6       0.0         11825     909.6     1.75   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4c3 d4d1 c3c2 d1d4 c7c8q 
    7       0.0         15098    1078.4     1.78   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4c3 d4d1 c3c2 d1b1 c7c8q b1b2 c2c3 b2a2 
    8       0.0         44726    1397.7     1.84   c6c7 a1b2 c7c8q d5d3 c8c4 d3c3 c4d5 b2a3 d5e5 a3b2 b6b5 
    9       0.0         60535    1552.2     1.86   c6c7 a1b2 c7c8q d5d3 c8c4 d3c3 c4d5 b2a3 b6b5 c3b3 b5c4 b3b4 c4c5 b4b3 
   10       0.1        128085    1663.4     1.87   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8h8 b2c2 h8h2 c2d3 h2d6 d3e2 d6d5 b3d3 d5f5 e2d2 f5f4 d2d1 
   11       0.1        202353    1759.6     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   12       0.1        209686    1732.9     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   13       0.1        219756    1772.2     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   14       0.1        233164    1821.6     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   15       1.5       2933774    1902.6     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3f3 c7c8q f3f2 c2c1 f2f1 c1d2 f1f2 d2c3
   16       1.7       3244673    1917.7     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3f3 c7c8q f3f2 c2c1 f2f1 c1d2 f1f2 d2c3
   17       2.3       4527464    1958.2     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   18       3.2       6320084    1992.5     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   19       3.7       7538404    2015.1     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   20       4.8       9848655    2046.7     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   21       6.5      13428553    2068.5     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   22       8.5      17687573    2082.9     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   23      13.0      27101167    2091.0     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   24      24.7      53042180    2150.3     2.30   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   25      51.5     118157086    2296.0     2.46   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 c3c2 c5c4
   26     293.4     779171909    2655.5     7.84   c6c7 d5d6 b6b5 d6d3 c7c8q a1b2 c8c4 d3c3 c4e4 c3b3 b5c4 b3c3 c4d4 c3c1 e4b7 b2a3 b7e7
Capital punishment would be more effective as a preventive measure if it were administered prior to the crime.
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Don
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Re: Don Dailey you need to teach underpromotion to Komodo!

Post by Don »

P.S. I truncated the variations for formatting purposes.
Don wrote:
pichy wrote:
hgm wrote:
Uri Blass wrote:I do not know about komodo4 because I do not have it but komodo3 has some stalemate bug so it does not see the underpromtion.


New game
8/2P5/8/8/3r4/8/2K5/k7 w - - 0 1

Analysis by Komodo32 3 32bit:

1.c7-c8Q Rd4-a4 2.Qc8-c3+
+- (2.28) Depth: 1 00:00:00
1.c7-c8Q Rd4-a4 2.Qc8-c3+ Ka1-a2 3.Qc3-b2#
+- (#3) Depth: 2 00:00:00

(, 16.04.2012)
I don't get it. If Komodo can't see the stalemate, it should always think the position is won, wheter it considers Rook promotions or not, because promotion to Q in the Saavedra line also easily wins if you discard the stalemate. Yet, in the founding post of this thread, Komodo reports 0.00 scores. The only way to get those is by thinking you can force a stalemate.

Are we talking about different Komodo versions now?
That is the point here Komodo 3 can't predict the next best move, if Komodo see the correct move following promotion to a Queen it should also play Rc4+ NOT Rd4-a4 to force the Stalemate. :wink:

PS: Notice that Komodo think like that only when you give the Black side to play, but if you give it the White side it will find the correct underpromotion to a Rook. I would like to see the Analysis of Don Dailey experimental program (to be released soon) which he already fixed.
Here is some analysis of the latest development version of Komodo from the original position. It has failed on the 27th iteration but the score is huge so I think it will announce mate, but I cannot wait for it as it is taking a long time. Score is over 18 pawns at depth 27.

Code: Select all

 - - - - - - - -
 - - - - - - - -
 - K P - - - - -
 - - - r - - - -
 - - - - - - - -
 - - - - - - - -
 - - - - - - - -
 k - - - - - - -

DEPTH      TIME         NODES      KNPS    SCORE   PRINCIPAL VARIATION
-----  --------  ------------  --------  -------   -------------------------------------------------
    1       0.0           200     200.0     1.51   c6c7 a1b2 c7c8q 
    2       0.0           562     281.0     1.73   c6c7 a1b2 c7c8q b2b3 c8h3 
    3       0.0          2251     562.8     1.68   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8c5 
    4       0.0          2579     644.8     1.68   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8c5 
    5       0.0         10503     875.2     1.61   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4a5 d4d5 a5b6 d5d6 
    6       0.0         11825     909.6     1.75   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4c3 d4d1 c3c2 d1d4 c7c8q 
    7       0.0         15098    1078.4     1.78   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4c3 d4d1 c3c2 d1b1 c7c8q b1b2 c2c3 b2a2 
    8       0.0         44726    1397.7     1.84   c6c7 a1b2 c7c8q d5d3 c8c4 d3c3 c4d5 b2a3 d5e5 a3b2 b6b5 
    9       0.0         60535    1552.2     1.86   c6c7 a1b2 c7c8q d5d3 c8c4 d3c3 c4d5 b2a3 b6b5 c3b3 b5c4 b3b4 c4c5 b4b3 
   10       0.1        128085    1663.4     1.87   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8h8 b2c2 h8h2 c2d3 h2d6 d3e2 d6d5 b3d3 d5f5 e2d2 f5f4 d2d1 
   11       0.1        202353    1759.6     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   12       0.1        209686    1732.9     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   13       0.1        219756    1772.2     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   14       0.1        233164    1821.6     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   15       1.5       2933774    1902.6     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3f3 c7c8q f3f2 c2c1 f2f1 c1d2 f1f2 d2c3
   16       1.7       3244673    1917.7     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3f3 c7c8q f3f2 c2c1 f2f1 c1d2 f1f2 d2c3
   17       2.3       4527464    1958.2     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   18       3.2       6320084    1992.5     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   19       3.7       7538404    2015.1     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   20       4.8       9848655    2046.7     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   21       6.5      13428553    2068.5     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   22       8.5      17687573    2082.9     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   23      13.0      27101167    2091.0     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   24      24.7      53042180    2150.3     2.30   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   25      51.5     118157086    2296.0     2.46   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 c3c2 c5c4
   26     293.4     779171909    2655.5     7.84   c6c7 d5d6 b6b5 d6d3 c7c8q a1b2 c8c4 d3c3 c4e4 c3b3 b5c4 b3c3 c4d4 c3c1 e4b7 b2a3 b7e7
Capital punishment would be more effective as a preventive measure if it were administered prior to the crime.
Uri Blass
Posts: 11221
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Don Dailey you need to teach underpromotion to Komodo!

Post by Uri Blass »

I found that when I play against it komodo3 can promote to a rook and does not miss the stalemate earlier in the analysis that does not consider the rook promotion.
I did not play till the end and stopped to play after komodo promoted to a rook and here is the game

I also found that without playing the previous moves komodo3 promotes to a queen with a wrong mate announcement.

[Event "5'/40+5'/40+5'/40"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Komodo32 3 32bit"]
[Black "Uri Blass"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/1KP5/3r4/8/8/8/k7 w - - 0 1"]
[PlyCount "11"]
[TimeControl "40/300:40/300:40/300"]

1. c7 {0.00/12 1} Rd6+ {4} 2. Kb5 {0.00/24 3} Rd5+ {1} 3. Kb4 {0.00/26 5} Rd4+
{1} 4. Kb3 {0.00/28 9} Rd3+ {1} 5. Kc2 {0.00/28 4} Rd4 {1} 6. c8=R {#8/12 0} *
pichy
Posts: 2564
Joined: Thu Mar 09, 2006 3:04 am

Re: Don Dailey you need to teach underpromotion to Komodo!

Post by pichy »

Uri Blass wrote:I found that when I play against it komodo3 can promote to a rook and does not miss the stalemate earlier in the analysis that does not consider the rook promotion.
I did not play till the end and stopped to play after komodo promoted to a rook and here is the game

I also found that without playing the previous moves komodo3 promotes to a queen with a wrong mate announcement.

[Event "5'/40+5'/40+5'/40"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Komodo32 3 32bit"]
[Black "Uri Blass"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/1KP5/3r4/8/8/8/k7 w - - 0 1"]
[PlyCount "11"]
[TimeControl "40/300:40/300:40/300"]

1. c7 {0.00/12 1} Rd6+ {4} 2. Kb5 {0.00/24 3} Rd5+ {1} 3. Kb4 {0.00/26 5} Rd4+
{1} 4. Kb3 {0.00/28 9} Rd3+ {1} 5. Kc2 {0.00/28 4} Rd4 {1} 6. c8=R {#8/12 0} *
Now try playing with the White piece and Komodo with the Black and you will see that Komodo does not predict you to promote to a Rook :shock:
pichy
Posts: 2564
Joined: Thu Mar 09, 2006 3:04 am

Re: Don Dailey you need to teach underpromotion to Komodo!

Post by pichy »

pichy wrote:
Uri Blass wrote:I found that when I play against it komodo3 can promote to a rook and does not miss the stalemate earlier in the analysis that does not consider the rook promotion.
I did not play till the end and stopped to play after komodo promoted to a rook and here is the game

I also found that without playing the previous moves komodo3 promotes to a queen with a wrong mate announcement.

[Event "5'/40+5'/40+5'/40"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Komodo32 3 32bit"]
[Black "Uri Blass"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/1KP5/3r4/8/8/8/k7 w - - 0 1"]
[PlyCount "11"]
[TimeControl "40/300:40/300:40/300"]

1. c7 {0.00/12 1} Rd6+ {4} 2. Kb5 {0.00/24 3} Rd5+ {1} 3. Kb4 {0.00/26 5} Rd4+
{1} 4. Kb3 {0.00/28 9} Rd3+ {1} 5. Kc2 {0.00/28 4} Rd4 {1} 6. c8=R {#8/12 0} *
Now try playing with the White piece and Komodo with the Black and you will see that Komodo does not predict you to promote to a Rook :shock:
Now if you play with White and Komodo with Black it can not predict that you will promote to a Rook and it set up the trap thinking that you will promote to a Queen in order to respond Rc4+ and force mate.
And here is the famous Saavedra ending study game that I played versus Komodo:

[Event "?"]
[Site "?"]
[Date "2012.04.16"]
[Round "?"]
[White "Pichy"]
[Black "Komodo3-64"]
[Result "1-0"]
[BlackElo "3050"]
[ECO "TB: Wh"]
[Opening "ite wins in 1"]
[WhiteElo "2200"]
[TimeControl "0+10"]
[SetUp "1"]
[FEN "8/8/1KP5/3r4/8/8/8/k7 w - - 0 1"]
[WhiteType "human"]
[BlackType "program"]

1. c7 Rd6+ 2. Kb5 Rd5+ 3. Kb4 Rd4+ 4. Kb3 Rd3+ 5. Kc2 Rd4 6. c8=R Ra4 7.
Kb3 Kb1 8. Kxa4 Kb2 9. Kb4 Ka2 10. Rc2+ Ka1 {Black resigns} 11. Kb3 Kb1
{Black resigns} 12. Rc3 Ka1 {Black resigns} 13. Rc1# 1-0

Final Position where Komodo playing as Black set up the trap thinking that I was going to promote to a Queen :lol:

[d]8/8/8/8/8/1K6/8/k1R5 b - - 10 13
pichy
Posts: 2564
Joined: Thu Mar 09, 2006 3:04 am

Re: Don Dailey you need to teach underpromotion to Komodo!

Post by pichy »

Don wrote:P.S. I truncated the variations for formatting purposes.
Don wrote:
pichy wrote:
hgm wrote:
Uri Blass wrote:I do not know about komodo4 because I do not have it but komodo3 has some stalemate bug so it does not see the underpromtion.


New game
8/2P5/8/8/3r4/8/2K5/k7 w - - 0 1

Analysis by Komodo32 3 32bit:

1.c7-c8Q Rd4-a4 2.Qc8-c3+
+- (2.28) Depth: 1 00:00:00
1.c7-c8Q Rd4-a4 2.Qc8-c3+ Ka1-a2 3.Qc3-b2#
+- (#3) Depth: 2 00:00:00

(, 16.04.2012)
I don't get it. If Komodo can't see the stalemate, it should always think the position is won, wheter it considers Rook promotions or not, because promotion to Q in the Saavedra line also easily wins if you discard the stalemate. Yet, in the founding post of this thread, Komodo reports 0.00 scores. The only way to get those is by thinking you can force a stalemate.

Are we talking about different Komodo versions now?
That is the point here Komodo 3 can't predict the next best move, if Komodo see the correct move following promotion to a Queen it should also play Rc4+ NOT Rd4-a4 to force the Stalemate. :wink:

PS: Notice that Komodo think like that only when you give the Black side to play, but if you give it the White side it will find the correct underpromotion to a Rook. I would like to see the Analysis of Don Dailey experimental program (to be released soon) which he already fixed.
Here is some analysis of the latest development version of Komodo from the original position. It has failed on the 27th iteration but the score is huge so I think it will announce mate, but I cannot wait for it as it is taking a long time. Score is over 18 pawns at depth 27.

Code: Select all

 - - - - - - - -
 - - - - - - - -
 - K P - - - - -
 - - - r - - - -
 - - - - - - - -
 - - - - - - - -
 - - - - - - - -
 k - - - - - - -

DEPTH      TIME         NODES      KNPS    SCORE   PRINCIPAL VARIATION
-----  --------  ------------  --------  -------   -------------------------------------------------
    1       0.0           200     200.0     1.51   c6c7 a1b2 c7c8q 
    2       0.0           562     281.0     1.73   c6c7 a1b2 c7c8q b2b3 c8h3 
    3       0.0          2251     562.8     1.68   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8c5 
    4       0.0          2579     644.8     1.68   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8c5 
    5       0.0         10503     875.2     1.61   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4a5 d4d5 a5b6 d5d6 
    6       0.0         11825     909.6     1.75   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4c3 d4d1 c3c2 d1d4 c7c8q 
    7       0.0         15098    1078.4     1.78   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4c3 d4d1 c3c2 d1b1 c7c8q b1b2 c2c3 b2a2 
    8       0.0         44726    1397.7     1.84   c6c7 a1b2 c7c8q d5d3 c8c4 d3c3 c4d5 b2a3 d5e5 a3b2 b6b5 
    9       0.0         60535    1552.2     1.86   c6c7 a1b2 c7c8q d5d3 c8c4 d3c3 c4d5 b2a3 b6b5 c3b3 b5c4 b3b4 c4c5 b4b3 
   10       0.1        128085    1663.4     1.87   c6c7 d5d3 c7c8q d3b3 b6a5 a1b2 c8h8 b2c2 h8h2 c2d3 h2d6 d3e2 d6d5 b3d3 d5f5 e2d2 f5f4 d2d1 
   11       0.1        202353    1759.6     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   12       0.1        209686    1732.9     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   13       0.1        219756    1772.2     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   14       0.1        233164    1821.6     0.00   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3d4 c7c8q d4c4 c8c4 
   15       1.5       2933774    1902.6     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3f3 c7c8q f3f2 c2c1 f2f1 c1d2 f1f2 d2c3
   16       1.7       3244673    1917.7     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 d5d4 b4b3 d4d3 b3c2 d3f3 c7c8q f3f2 c2c1 f2f1 c1d2 f1f2 d2c3
   17       2.3       4527464    1958.2     2.18   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   18       3.2       6320084    1992.5     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   19       3.7       7538404    2015.1     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   20       4.8       9848655    2046.7     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   21       6.5      13428553    2068.5     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   22       8.5      17687573    2082.9     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   23      13.0      27101167    2091.0     2.19   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   24      24.7      53042180    2150.3     2.30   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 d3d2 e1e4
   25      51.5     118157086    2296.0     2.46   c6c7 d5d6 b6b5 d6d5 b5b4 a1b2 c7c8q d5d4 b4c5 d4d3 c8e6 b2c2 e6e2 c2c3 e2e1 c3c2 c5c4
   26     293.4     779171909    2655.5     7.84   c6c7 d5d6 b6b5 d6d3 c7c8q a1b2 c8c4 d3c3 c4e4 c3b3 b5c4 b3c3 c4d4 c3c1 e4b7 b2a3 b7e7
If Komodo is playing Black the second move is NOT an Improvement over Saavedra Endgame study, in that case it allows White to immediately get a Queen without any chance of setting up the Known trap with Rc4+

PS: After this position Black allows White to get an Immediate advantage, you don't want this if Komodo is Playing with the Black pieces:

[d]8/2P5/8/1K6/8/3r4/8/k7 w - - 3 3

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hgm
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Re: Don Dailey you need to teach underpromotion to Komodo!

Post by hgm »

Well, that is what Marco has been explaining to you the whole time: setting up the trap is a blunder, DTM-wise, because it gets you checkmated very quickly (if the opponent does not let himself be suckered into it). Komodo of course sees this, so it prefers to avoid the futile trap, and play a better move in stead.