Why is Houdini 4 so clueless?

Sedat Canbaz · Post by **Sedat Canbaz** » Tue Mar 04, 2014 7:49 pm

sicilianquake87 wrote:
Sedat Canbaz wrote:Right now I noticed a game lost on time by Houdini 4 (actually Houdini was wining this game, but...)

Strange indeed...not sure why ?!

Has anybody seen a game forfeit on time by Houdini 4 ?
This is rare indeed. I thought Houdini TM was one of the best out there.

Agreed...not very often,even I can say very very rare...but however is better to see no game forfeit on time

And as far as I noticed,
No any game forfeit on time by Stockfish,Komodo,Bouquet!

For example,
There are only 10 games forfeit on time by different engines (based on 6000 games)
http://www.sedatcanbaz.com/chess/?page_id=515

zullil · Post by **zullil** » Tue Mar 04, 2014 8:40 pm

yanquis1972 wrote:good question, after about 10 minutes on my machine houdini at least evaluates it as winning for white but cant seem to find a path --

New game
[d]8/8/3k4/1B3p1p/3K1P1P/6P1/8/3b4 w - - 0 1

After a long search, Stockfish says +3.23 for White, but the pv doesn't seem to show progress.

Code: Select all

info depth 91 seldepth 107 score cp 323 nodes 132851710116 nps 14848614 time 8947078 multipv 1 pv b5d3 d6e6 d4c3 d1f3 d3c2 f3g4 c3c4 e6d6 c4d4 d6e6 d4c5 g4e2 c2b1 e6f6 c5d5 e2b5 d5d4 b5e2 b1d3 e2f3 d3b5 f6e6 b5a6 f3c6 d4c5 c6e8 a6d3 e8g6 d3e2 e6f6 c5d5 g6e8 e2d3 e8a4 d3c4 a4d7 d5d6 d7e8 c4e6 e8a4 e6d5 a4e8 d5c4 e8a4 c4e6 a4d1 e6g8 d1a4 d6c7 f6e7 g8c4 a4d1 c4d3 e7f6 d3b1
info depth 92 currmove b5d3 currmovenumber 1
info depth 92 currmove b5c4 currmovenumber 2
info depth 92 currmove d4c4 currmovenumber 11
info depth 92 currmove d4e3 currmovenumber 12
info depth 92 seldepth 107 score cp 323 nodes 202934876112 nps 14953682 time 13570896 multipv 1 pv b5d3 d6e6 d4c3 d1f3 d3c2 f3g4 c3c4 e6d6 c4d4 d6e6 d4c5 g4e2 c2b1 e6f6 c5d5 e2b5 d5d4 b5e2 b1d3 e2f3 d3b5 f3d1 b5c4 d1a4 c4e2 a4e8 e2d1 f6e6 d1c2 e8g6 d4c5 e6f6 c5d6 g6h7 c2a4 h7g6 a4b3 g6h7 d6c6 h7g6 b3c4 f6g7 c6d7 g7f6 c4d3 g6h7

ernst · Post by **ernst** » Tue Mar 04, 2014 8:50 pm

Let me start with a quote from houdini's website.

Houdini 4 uses calibrated evaluations in which engine scores correlate directly with the win expectancy in the position. A +1.00 pawn advantage gives a 80% chance of winning the game against an equal opponent at blitz time control. At +2.00 the engine will win 95% of the time, and at +3.00 about 99% of the time. If the advantage is +0.50, expect to win nearly 50% of the time.

Now for houdini's eval on the position.

Code: Select all

31/64  1&#58;00   +3.50    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb3 Be2 
                       86.Bf7 Bf3 87.Be8 Bg4 88.Kg8 Ke7 
                       89.Bg6 Ke6 90.Kg7 &#40;882.084.203&#41; 14597 
                       TB&#58;3.388.540 

32/68  1&#58;16   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb3 Be2 
                       86.Bf7 Bf3 87.Kg8 Ke7 88.Bg6 Ke6 
                       89.Kh7 Kf6 90.Kh6 &#40;1.111.321.666&#41; 14500 
                       TB&#58;4.723.931 

33/68  1&#58;26   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Be8 Bg4 
                       86.Kg8 Ke7 87.Bg6 Bf3 88.Kg7 Ke6 
                       89.Kh6 Kf6 90.Kh7 &#40;1.251.368.021&#41; 14529 
                       TB&#58;5.728.317 

34/70  1&#58;57   +3.53    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb5 Bd1 
                       86.Be8 Bg4 87.Kg8 Ke7 88.Bg6 Kf6 
                       89.Kh7 Be2 90.Kh6 &#40;1.700.815.938&#41; 14536 
                       TB&#58;8.832.522 

35/70  2&#58;20   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb5 Bd1 
                       86.Be8 Be2 87.Kg8 Ke7 88.Ba4 Kf6 
                       89.Kh7 Kf7 90.Kh6 &#40;2.069.642.782&#41; 14688 
                       TB&#58;11.601.827 

36/71  2&#58;49   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Bb3 Be2 85.Kf8 Bg4 
                       86.Ba4 Bh3 87.Be8 Bg4 88.Kg8 Bd1 
                       89.Kh7 Bg4 90.Kh6 &#40;2.518.501.186&#41; 14820 
                       TB&#58;15.454.052 

37/71  3&#58;28   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Be2 85.Be8 Bd1 
                       86.Kg8 Be2 87.Kh7 Bg4 88.Ba4 Kf7 
                       89.Bc6 Kf6 90.Be8 &#40;3.120.084.912&#41; 14986 
                       TB&#58;20.501.300 

38/75  4&#58;35   +3.66++  77.Bd3 &#40;4.171.247.152&#41; 15162 
                       TB&#58;28.725.297 

38/75  5&#58;55   +3.73    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Bb3 Bf3 85.Kg8 Kg6 
                       86.Bf7+ Kf6 87.Be8 Be2 88.Kh7 Ke7 
                       89.Bg6 Kf6 90.Kh6 &#40;5.449.471.182&#41; 15314 
                       TB&#58;37.605.832 

39/78  7&#58;05   +3.89++  77.Bd3 &#40;6.541.724.128&#41; 15362 
                       TB&#58;44.972.797 

39/78  7&#58;51   +4.20++  77.Bd3 &#40;7.265.811.359&#41; 15399 
                       TB&#58;50.028.001 

39/78  8&#58;37   +5.02++  77.Bd3 &#40;7.974.921.453&#41; 15422 
                       TB&#58;54.629.083 

39/79  9&#58;22   +7.38++  77.Bd3 &#40;8.711.126.794&#41; 15474 
                       TB&#58;58.381.508 

39/87  14&#58;40  +14.36++ 77.Bd3 &#40;14.684.746.918&#41; 16683 
                       TB&#58;70.958.212 

39/87  15&#58;18  +14.36   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Bb3 Bf3 84.Kf8 Bc6 85.Kg8 Be8 
                       86.Bc4 Kg6 87.Kf8 Ba4 88.Bf7+ Kh7 
                       89.Ke7 Kh8 90.Kf6 &#40;15.420.721.163&#41; 16793 
                       TB&#58;73.065.213 

40/87  17&#58;41  +14.96++ 77.Bd3 &#40;17.967.485.998&#41; 16927 
                       TB&#58;81.878.938 

40/87  19&#58;17  +16.15++ 77.Bd3 &#40;19.779.557.974&#41; 17086 
                       TB&#58;85.586.927 

40/87  22&#58;12  +18.30   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Ba4 Be2 85.Kg8 Kg6 
                       86.Be8+ Kf6 87.Kh7 Ke7 88.Bg6 Kf6 
                       89.Kh6 Bb5 90.Bxh5 &#40;23.299.630.880&#41; 17483 
                       TB&#58;91.411.172 

41/88  24&#58;20  +19.06++ 77.Bd3 &#40;25.636.373.479&#41; 17554 
                       TB&#58;96.933.938 

41/88  25&#58;39  +20.58++ 77.Bd3 &#40;27.093.431.307&#41; 17601 
                       TB&#58;99.265.261 

41/88  28&#58;32  +21.45   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Ba4 Be2 85.Kg8 Kg6 
                       86.Be8+ Kf6 87.Kh7 Ke7 88.Bg6 Kf6 
                       89.Kh6 Bb5 90.Kxh5 &#40;30.484.480.257&#41; 17799 
                       TB&#58;107.696.949 

41/88  28&#58;37  +21.45   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Ba4 Be2 85.Kg8 Kg6 
                       86.Be8+ Kf6 87.Kh7 Ke7 88.Bg6 Kf6 
                       89.Kh6 Bb5 90.Kxh5 &#40;30.583.742.638&#41; 17802 
                       TB&#58;108.324.157 

best move&#58; Bb5-d3 time&#58; 28&#58;37.922 min  n/s&#58; 17.802.000  CPU 96.9%   n/s&#40;1CPU&#41;&#58; 18.371.517  nodes&#58; 30.583.742.638 TB&#58; 108.324.157

As you can see in the pv houdini thinks the white king can penetrate black's position.

beram · Post by **beram** » Tue Mar 04, 2014 9:44 pm

ernst wrote:Let me start with a quote from houdini's website.

Houdini 4 uses calibrated evaluations in which engine scores correlate directly with the win expectancy in the position. A +1.00 pawn advantage gives a 80% chance of winning the game against an equal opponent at blitz time control. At +2.00 the engine will win 95% of the time, and at +3.00 about 99% of the time. If the advantage is +0.50, expect to win nearly 50% of the time.

Now for houdini's eval on the position.

Code: Select all

31/64  1&#58;00   +3.50    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb3 Be2 
                       86.Bf7 Bf3 87.Be8 Bg4 88.Kg8 Ke7 
                       89.Bg6 Ke6 90.Kg7 &#40;882.084.203&#41; 14597 
                       TB&#58;3.388.540 

32/68  1&#58;16   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb3 Be2 
                       86.Bf7 Bf3 87.Kg8 Ke7 88.Bg6 Ke6 
                       89.Kh7 Kf6 90.Kh6 &#40;1.111.321.666&#41; 14500 
                       TB&#58;4.723.931 

33/68  1&#58;26   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Be8 Bg4 
                       86.Kg8 Ke7 87.Bg6 Bf3 88.Kg7 Ke6 
                       89.Kh6 Kf6 90.Kh7 &#40;1.251.368.021&#41; 14529 
                       TB&#58;5.728.317 

34/70  1&#58;57   +3.53    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb5 Bd1 
                       86.Be8 Bg4 87.Kg8 Ke7 88.Bg6 Kf6 
                       89.Kh7 Be2 90.Kh6 &#40;1.700.815.938&#41; 14536 
                       TB&#58;8.832.522 

35/70  2&#58;20   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Bf3 85.Bb5 Bd1 
                       86.Be8 Be2 87.Kg8 Ke7 88.Ba4 Kf6 
                       89.Kh7 Kf7 90.Kh6 &#40;2.069.642.782&#41; 14688 
                       TB&#58;11.601.827 

36/71  2&#58;49   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Bb3 Be2 85.Kf8 Bg4 
                       86.Ba4 Bh3 87.Be8 Bg4 88.Kg8 Bd1 
                       89.Kh7 Bg4 90.Kh6 &#40;2.518.501.186&#41; 14820 
                       TB&#58;15.454.052 

37/71  3&#58;28   +3.52    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Bf3 81.Kd7 Bg4 82.Ba4 Bf3 
                       83.Ke8 Bg4 84.Kf8 Be2 85.Be8 Bd1 
                       86.Kg8 Be2 87.Kh7 Bg4 88.Ba4 Kf7 
                       89.Bc6 Kf6 90.Be8 &#40;3.120.084.912&#41; 14986 
                       TB&#58;20.501.300 

38/75  4&#58;35   +3.66++  77.Bd3 &#40;4.171.247.152&#41; 15162 
                       TB&#58;28.725.297 

38/75  5&#58;55   +3.73    77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Bb3 Bf3 85.Kg8 Kg6 
                       86.Bf7+ Kf6 87.Be8 Be2 88.Kh7 Ke7 
                       89.Bg6 Kf6 90.Kh6 &#40;5.449.471.182&#41; 15314 
                       TB&#58;37.605.832 

39/78  7&#58;05   +3.89++  77.Bd3 &#40;6.541.724.128&#41; 15362 
                       TB&#58;44.972.797 

39/78  7&#58;51   +4.20++  77.Bd3 &#40;7.265.811.359&#41; 15399 
                       TB&#58;50.028.001 

39/78  8&#58;37   +5.02++  77.Bd3 &#40;7.974.921.453&#41; 15422 
                       TB&#58;54.629.083 

39/79  9&#58;22   +7.38++  77.Bd3 &#40;8.711.126.794&#41; 15474 
                       TB&#58;58.381.508 

39/87  14&#58;40  +14.36++ 77.Bd3 &#40;14.684.746.918&#41; 16683 
                       TB&#58;70.958.212 

39/87  15&#58;18  +14.36   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Bb3 Bf3 84.Kf8 Bc6 85.Kg8 Be8 
                       86.Bc4 Kg6 87.Kf8 Ba4 88.Bf7+ Kh7 
                       89.Ke7 Kh8 90.Kf6 &#40;15.420.721.163&#41; 16793 
                       TB&#58;73.065.213 

40/87  17&#58;41  +14.96++ 77.Bd3 &#40;17.967.485.998&#41; 16927 
                       TB&#58;81.878.938 

40/87  19&#58;17  +16.15++ 77.Bd3 &#40;19.779.557.974&#41; 17086 
                       TB&#58;85.586.927 

40/87  22&#58;12  +18.30   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Ba4 Be2 85.Kg8 Kg6 
                       86.Be8+ Kf6 87.Kh7 Ke7 88.Bg6 Kf6 
                       89.Kh6 Bb5 90.Bxh5 &#40;23.299.630.880&#41; 17483 
                       TB&#58;91.411.172 

41/88  24&#58;20  +19.06++ 77.Bd3 &#40;25.636.373.479&#41; 17554 
                       TB&#58;96.933.938 

41/88  25&#58;39  +20.58++ 77.Bd3 &#40;27.093.431.307&#41; 17601 
                       TB&#58;99.265.261 

41/88  28&#58;32  +21.45   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Ba4 Be2 85.Kg8 Kg6 
                       86.Be8+ Kf6 87.Kh7 Ke7 88.Bg6 Kf6 
                       89.Kh6 Bb5 90.Kxh5 &#40;30.484.480.257&#41; 17799 
                       TB&#58;107.696.949 

41/88  28&#58;37  +21.45   77.Bd3 Ke6 78.Kc5 Kf6 79.Kd6 Bg4 
                       80.Bc2 Be2 81.Kd7 Bf3 82.Ke8 Be2 
                       83.Kf8 Bg4 84.Ba4 Be2 85.Kg8 Kg6 
                       86.Be8+ Kf6 87.Kh7 Ke7 88.Bg6 Kf6 
                       89.Kh6 Bb5 90.Kxh5 &#40;30.583.742.638&#41; 17802 
                       TB&#58;108.324.157 

best move&#58; Bb5-d3 time&#58; 28&#58;37.922 min  n/s&#58; 17.802.000  CPU 96.9%   n/s&#40;1CPU&#41;&#58; 18.371.517  nodes&#58; 30.583.742.638 TB&#58; 108.324.157

As you can see in the pv houdini thinks the white king can penetrate black's position.

So Ernst, in the end you conclude that Houdini 4 has a clue

ouachita · Post by **ouachita** » Tue Mar 04, 2014 11:21 pm

On its face, this is a very stupid question: see 3267 ELO

shrapnel · Post by **shrapnel** » Wed Mar 05, 2014 6:03 am

mwyoung wrote:You are the one claiming H4 makes mistakes

You on crack or something ? Its the OP who was criticizing H4. In my opinion, Houdini 4 will not lose a game in the manner described by the OP, given good hardware, reasonable amount of time and EGTBs.
Is what I'm saying too complicated to understand ?

Evert · Post by **Evert** » Wed Mar 05, 2014 7:43 am

shrapnel wrote:In my opinion, Houdini 4 will not lose a game in the manner described by the OP, given good hardware, reasonable amount of time and EGTBs.
Is what I'm saying too complicated to understand ?

What's difficult to understand is why you consider that a reasonable statement to make. Given infinite time any engine plays perfect chess.

Was Houdini playing on inferior hardware compared to Stockfish? No. Was it playing at time-odds? No. Was stockfish using EGTBs while Houdini wasn't? No. Was it at a disadvantage from Stockfish? No.
In this particular game (and perhaps under these particular conditions) Stockfish played better than Houdini. Houdini is very strong, but clearly not unbeatable - it misevaluates sometimes and it does miss tactics. That should be obvious anyway, since it would occasionally lose games (to Stockfish, for instance). If that happens more now this is because Stockfish improved and is better tuned than it used to be.

Also fair to remember: Houdini 4 does not improve, it is static. The "current" version of Stockfish has seen an enormous improvement since the version of Stockfish that was current when Houdini 4 came out. Comparing current Stockfish to Houdini 4 is comparing apples and oranges; you should compare with the current development version of Houdini, which no-one has access to (and which may not have improved as much as Stockfish since it's hard to beat the computer resources available to the development of Stockfish, but that's impossible to say for sure).

phenri · Post by **phenri** » Wed Mar 05, 2014 9:48 am

Should be given something. According to the original poster, the match took place on PlayChess or equivalent. So the machines are certainly not the same. So different geographical location and therefore differente connection. And many other unknown hardware/software optimizations.

[Event "Rated game, 5 min"]
[Site "Engine Room"]
[Date "2014.03.03"]
[Round "?"]
[White "Stockfish 160214 64"]
[Black "Houdini 4 Pro x64"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2560"]
[BlackElo "2582"]
[Annotator "0.12;0.00"]
[PlyCount "152"]
[EventDate "2014.03.03"]
[TimeControl "300"]

Sedat Canbaz · Post by **Sedat Canbaz** » Wed Mar 05, 2014 9:59 am

ernst wrote:Time and again I see houdini being clueless against stockfish of the danger that is upon it until it is too late. To be honest it frustates me that a €60 engine gets outplayed so often by a free engine.

An example.

Code: Select all

&#91;Event "Rated game, 5 min"&#93;
&#91;Site "Engine Room"&#93;
&#91;Date "2014.03.03"&#93;
&#91;Round "?"&#93;
&#91;White "Stockfish 160214 64"&#93;
&#91;Black "Houdini 4 Pro x64"&#93;
&#91;Result "1-0"&#93;
&#91;ECO "B92"&#93;
&#91;WhiteElo "2560"&#93;
&#91;BlackElo "2582"&#93;
&#91;Annotator "0.12;0.00"&#93;
&#91;PlyCount "152"&#93;
&#91;EventDate "2014.03.03"&#93;
&#91;TimeControl "300"&#93;

1. e4 &#123;B 0&#125; c5 &#123;B 0&#125; 2. Nf3 &#123;B 0&#125; d6 &#123;B 0&#125; 3. d4 &#123;B 0&#125; cxd4 &#123;B 0&#125; 4. Nxd4 &#123;
B 0&#125; Nf6 &#123;B 0&#125; 5. Nc3 &#123;B 0&#125; a6 &#123;B 0&#125; 6. Be3 &#123;B 0&#125; e5 &#123;B 0&#125; 7. Nb3 &#123;B 0&#125; Be6 &#123;
B 0&#125; 8. Be2 &#123;B 0&#125; Be7 &#123;B 0&#125; 9. O-O &#123;B 0&#125; O-O &#123;B 0&#125; 10. Qd3 &#123;B 0&#125; Nc6 &#123;B 0&#125; 11.
a3 &#123;0.12/23 7&#125; d5 &#123;B 0 &#40;Tc8&#41;&#125; 12. exd5 &#123;0.38/25 5&#125; Nxd5 &#123;B 0&#125; 13. Nxd5 &#123;0.37/
27 9&#125; Qxd5 &#123;B 0&#125; 14. Rad1 &#123;0.30/28 5&#125; Qxd3 &#123;B 0&#125; 15. Bxd3 &#123;0.32/28 5&#125; Rac8 &#123;B
0 &#40;f5&#41;&#125; 16. Nc5 &#123;0.27/25 7&#125; Bxc5 &#123;B 0&#125; 17. Bxc5 &#123;0.33/28 5&#125; Rfd8 &#123;B 0 &#40;Tfe8&#41;&#125;
18. Bb6 &#123;0.26/26 5&#125; Rd7 &#123;B 0&#125; 19. Rfe1 &#123;0.30/28 5&#125; f6 &#123;B 0 &#40;g6&#41;&#125; 20. Bc4 &#123;0.41/
27 12&#125; Re7 &#123;B 0&#125; 21. Bf1 &#123;0.36/27 6&#125; Kf7 &#123;B 0&#125; 22. c4 &#123;0.27/27 6&#125; Nb8 &#123;B 0 
&#40;Td7&#41;&#125; 23. b3 &#123;0.37/25 7&#125; Nd7 &#123;B 0 &#40;Td7&#41;&#125; 24. Be3 &#123;0.37/27 7&#125; Nc5 &#123;B 0&#125; 25.
Bxc5 &#123;0.19/29 8&#125; Rxc5 &#123;0.00/21 3&#125; 26. b4 &#123;0.19/31 4 &#40;f3&#41;&#125; Rcc7 &#123;0.00/25 7&#125; 27.
c5 &#123;0.18/32 0&#125; Red7 &#123;0.00/24 4&#125; 28. f3 &#123;0.19/31 2&#125; g6 &#123;0.00/25 5 &#40;Lb3&#41;&#125; 29. h4
&#123;0.13/29 7 &#40;g3&#41;&#125; Bb3 &#123;0.00/25 5&#125; 30. Rxd7+ &#123;0.13/30 0&#125; Rxd7 &#123;0.02/24 1&#125; 31. Re3
&#123;0.13/31 3&#125; Be6 &#123;-0.03/27 2&#125; 32. Rd3 &#123;0.15/30 2&#125; Rd4 &#123;0.00/27 4&#125; 33. Rxd4 &#123;0.
15/31 1&#125; exd4 &#123;0.00/27 0&#125; 34. Kf2 &#123;0.19/32 5&#125; Bd5 &#123;0.00/29 0&#125; 35. Bd3 &#123;0.15/33
4&#125; Ke6 &#123;0.00/28 0 &#40;f5&#41;&#125; 36. g3 &#123;0.00/33 5&#125; f5 &#123;0.00/28 0 &#40;Lc6&#41;&#125; 37. a4 &#123;0.25/
34 4 &#40;Ke2&#41;&#125; Bc6 &#123;0.00/28 4 &#40;Kd7&#41;&#125; 38. a5 &#123;0.25/37 5&#125; Kd5 &#123;0.00/28 0&#125; 39. Ke2 &#123;
0.25/37 4&#125; Ba4 &#123;0.00/27 5 &#40;Ke6&#41;&#125; 40. Kd2 &#123;0.57/35 5 &#40;f4&#41;&#125; Bd7 &#123;0.00/30 4&#125; 41.
f4 &#123;0.65/38 0&#125; h5 &#123;0.00/31 3 &#40;h6&#41;&#125; 42. Bf1 &#123;1.64/36 5&#125; Bc6 &#123;0.00/33 0&#125; 43. Kc2
&#123;1.80/39 4 &#40;Bd3&#41;&#125; Ba4+ &#123;0.84/26 18&#125; 44. Kc1 &#123;1.80/47 0 &#40;Kb2&#41;&#125; Bc6 &#123;0.00/23 4 
&#40;d3&#41;&#125; 45. Kd2 &#123;2.95/39 4 &#40;Kb2&#41;&#125; d3 &#123;0.84/22 3&#125; 46. Bxd3 &#123;1.80/42 0&#125; Kd4 &#123;0.86/
26 4&#125; 47. Be2 &#123;1.80/46 0&#125; Be4 &#123;0.90/26 6 &#40;Ld5&#41;&#125; 48. b5 &#123;1.81/48 6&#125; axb5 &#123;0.90/
27 0&#125; 49. Bxb5 &#123;1.81/50 3&#125; Kxc5 &#123;0.88/26 0&#125; 50. Be8 &#123;1.81/51 3&#125; Bf3 &#123;0.89/26 0&#125;
51. Bxg6 &#123;1.81/50 6&#125; Bg4 &#123;0.89/29 0&#125; 52. Bf7 &#123;1.81/55 4&#125; Kb4 &#123;0.94/28 0 &#40;Kb5&#41;&#125;
53. Bd5 &#123;1.81/59 4&#125; Kxa5 &#123;0.92/29 0&#125; 54. Bxb7 &#123;1.81/59 3&#125; Kb5 &#123;0.89/30 1&#125; 55.
Bc8 &#123;1.81/63 2 &#40;Kd3&#41;&#125; Kb4 &#123;0.90/30 4 &#40;Kc6&#41;&#125; 56. Be6 &#123;1.81/61 4 &#40;Kd3&#41;&#125; Kc5 &#123;0.
88/31 3&#125; 57. Kd3 &#123;1.81/50 0 &#40;Kc3&#41;&#125; Kd6 &#123;0.91/30 4&#125; 58. Bg8 &#123;1.81/50 0 &#40;Bc4&#41;&#125;
Kc5 &#123;0.92/30 4 &#40;Ld1&#41;&#125; 59. Ke3 &#123;1.81/60 3 &#40;Ba2&#41;&#125; Bd1 &#123;0.89/30 3 &#40;Kd6&#41;&#125; 60. Bf7 &#123;
1.81/47 3 &#40;Be6&#41;&#125; Kd6 &#123;0.92/29 3&#125; 61. Kf2 &#123;1.81/59 0 &#40;Bg6&#41;&#125; Kc5 &#123;0.90/30 4 &#40;Ke7&#41;
&#125; 62. Be6 &#123;1.81/61 3&#125; Bg4 &#123;0.89/31 0&#125; 63. Ke3 &#123;1.81/61 4&#125; Kd6 &#123;0.89/32 0&#125; 64.
Ba2 &#123;1.81/64 2 &#40;Bc8&#41;&#125; Kc5 &#123;0.89/31 3 &#40;Ke7&#41;&#125; 65. Bf7 &#123;1.81/56 3 &#40;Bb3&#41;&#125; Kd6 &#123;0.
91/31 4 &#40;Ld1&#41;&#125; 66. Kd4 &#123;1.82/60 7&#125; Bf3 &#123;0.91/30 0 &#40;Le2&#41;&#125; 67. Bb3 &#123;1.82/54 5 
&#40;Bc4&#41;&#125; Be2 &#123;1.05/29 3&#125; 68. Bg8 &#123;1.82/55 4 &#40;Bc2&#41;&#125; Bf1 &#123;1.86/28 3 &#40;Lg4&#41;&#125; 69. Bh7
&#123;1.82/46 2 &#40;Bd5&#41;&#125; Bh3 &#123;1.87/27 3 &#40;Ke6&#41;&#125; 70. Bg6 &#123;1.82/55 2&#125; Bg4 &#123;1.86/28 0&#125; 71.
Kc4 &#123;1.82/62 13&#125; Ke6 &#123;2.24/29 0 &#40;Le2+)&#125; 72. Be8 &#123;1.82/60 2&#125; Be2+ &#123;3.50/29 19 
&#40;Lf3&#41;&#125; 73. Kc5 &#123;1.82/61 2&#125; Ke7 &#123;3.30/28 2 &#40;Lg4&#41;&#125; 74. Ba4 &#123;1.82/56 2&#125; Bf3 &#123;3.21/
26 1 &#40;Ke6&#41;&#125; 75. Kd4 &#123;1.82/56 1 &#40;Bb3&#41;&#125; Kd6 &#123;3.04/25 3 &#40;Ke6&#41;&#125; 76. Bb5 &#123;1.82/57 1
&#40;Bc2&#41;&#125; Bd1 &#123;3.08/28 7 Houdini 4 Pro x64 resigns&#125; 1-0

Actually the above game should be ended as DRAW!!

Sedat Canbaz · Post by **Sedat Canbaz** » Wed Mar 05, 2014 10:03 am

I have just tested the same position on my hardware, where the game ended as draw:

[Event "pc1, Blitz 3m"]
[Site "pc1"]
[Date "2014.03.05"]
[Round "1"]
[White "Stockfish 150214 64 SSE4.2"]
[Black "Houdini 4 x64"]
[Result "1/2-1/2"]
[ECO "B92"]
[Annotator "1.89;0.64"]
[PlyCount "200"]
[TimeControl "180"]

{Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz 2494 MHz W=52.4 plies; 5.865kN/s
B=23.6 plies; 5.164kN/s; 60 TBAs} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5.
Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. O-O O-O 10. Qd3 Nc6 11. a3 d5 12.
exd5 Nxd5 13. Nxd5 Qxd5 14. Rad1 Qxd3 15. Bxd3 Rac8 16. Nc5 Bxc5 17. Bxc5 Rfd8
18. Bb6 Rd7 19. Rfe1 f6 20. Bc4 Re7 21. Bf1 Kf7 22. c4 Nb8 23. b3 Nd7 24. Be3
Nc5 25. Bxc5 Rxc5 26. b4 Rcc7 27. c5 Red7 28. f3 g6 29. h4 Bb3 30. Rxd7+ Rxd7
31. Re3 Be6 32. Rd3 Rd4 33. Rxd4 exd4 34. Kf2 Bd5 35. Bd3 Ke6 36. g3 f5 37. a4
Bc6 38. a5 Kd5 39. Ke2 Ba4 40. Kd2 Bd7 41. f4 h5 42. Bf1 Bc6 43. Kc2 Ba4+ 44.
Kc1 Bc6 45. Kd2 d3 46. Bxd3 Kd4 47. Be2 Be4 48. b5 axb5 49. Bxb5 Kxc5 50. Be8
Bf3 51. Bxg6 Bg4 52. Bf7 Kb4 53. Bd5 Kxa5 54. Bxb7 Kb5 55. Bc8 Kb4 56. Be6 Kc5
57. Kd3 Kd6 58. Bg8 Kc5 59. Ke3 Bd1 60. Bf7 Kd6 61. Kf2 Kc5 62. Be6 Bg4 63. Ke3
Kd6 64. Ba2 Kc5 65. Bf7 Kd6 66. Kd4 Bf3 67. Bb3 Be2 68. Bg8 Bf1 69. Bh7 Bh3 70.
Bg6 Bg4 71. Kc4 Ke6 72. Be8 Be2+ 73. Kc5 Ke7 74. Ba4 Bf3 75. Kd4 Kd6 76. Bb5
Bd1 {Both last book move} 77. Bd3 {[%eval 189,52] [%emt 0:00:05]} Ke6 {
(Bg4) [%eval 64,24] [%emt 0:00:03]} 78. Bc4+ {[%eval 189,55] [%emt 0:00:04]}
Kd6 {(Kf6) [%eval 57,25] [%emt 0:00:02]} 79. Bb5 {
(Bf1) [%eval 189,54] [%emt 0:00:05]} Bf3 {[%eval 56,25] [%emt 0:00:02]} 80. Bd3
{[%eval 189,54] [%emt 0:00:06]} Ke6 {[%eval 51,23] [%emt 0:00:02]} 81. Kc5 {
(Bf1) [%eval 189,56] [%emt 0:00:06]} Bg4 {(Kf6) [%eval 53,24] [%emt 0:00:02]}
82. Bc2 {(Bc4+) [%eval 189,54] [%emt 0:00:03]} Bf3 {
(Kf6) [%eval 43,22] [%emt 0:00:02]} 83. Bb3+ {[%eval 189,61] [%emt 0:00:03]}
Ke7 {(Kf6) [%eval 186,24] [%emt 0:00:06]} 84. Bd5 {
(Bc4) [%eval 189,58] [%emt 0:00:03]} Bg4 {(Bd1) [%eval 36,23] [%emt 0:00:02]}
85. Kd4 {(Bc4) [%eval 189,54] [%emt 0:00:04]} Kd6 {[%eval 32,24] [%emt 0:00:02]
} 86. Bb7 {(Ba2) [%eval 189,54] [%emt 0:00:03]} Bd1 {
(Be2) [%eval 27,22] [%emt 0:00:02]} 87. Ba6 {
(Kc3) [%eval 189,49] [%emt 0:00:04]} Bf3 {(Bg4) [%eval 24,23] [%emt 0:00:02]}
88. Bf1 {(Kc3) [%eval 189,48] [%emt 0:00:04]} Bc6 {
(Bd1) [%eval 20,23] [%emt 0:00:02]} 89. Bd3 {
(Bc4) [%eval 189,47] [%emt 0:00:03]} Bd7 {[%eval 15,22] [%emt 0:00:02]} 90. Bc2
{(Bc4) [%eval 189,51] [%emt 0:00:04]} Be6 {[%eval 10,23] [%emt 0:00:02]} 91.
Bd1 {(Bb1) [%eval 189,53] [%emt 0:00:03]} Bf7 {[%eval 9,22] [%emt 0:00:01]} 92.
Bf3 {(Ba4) [%eval 189,51] [%emt 0:00:03]} Bg6 {
(Be8) [%eval 4,23] [%emt 0:00:03]} 93. Bd5 {(Bg2) [%eval 189,53] [%emt 0:00:03]
} Be8 {[%eval 4,21] [%emt 0:00:00]} 94. Bc4 {
(Bh1) [%eval 189,55] [%emt 0:00:02]} Ba4 {(Bc6) [%eval 1,24] [%emt 0:00:02]}
95. Bf7 {(Kc3) [%eval 189,48] [%emt 0:00:03]} Bd1 {[%eval 1,23] [%emt 0:00:00]}
96. Bc4 {(Be8) [%eval 0,47] [%emt 0:00:15]} Ba4 {
(Bf3) [%eval 1,28] [%emt 0:00:02]} 97. Be2 {(Kc3) [%eval 0,45] [%emt 0:00:03]}
Be8 {[%eval 1,23] [%emt 0:00:01]} 98. Bd1 {(Ba6) [%eval 0,48] [%emt 0:00:02]}
Bf7 {[%eval 1,28] [%emt 0:00:02]} 99. Ke3 {(Ba4) [%eval 173,53] [%emt 0:00:18]}
Ke7 {(Be8) [%eval 1,24] [%emt 0:00:02]} 100. Kd4 {
(Kd3) [%eval 0,58] [%emt 0:00:02]} Kd6 {
Draw accepted [%eval 1,27] [%emt 0:00:01]} 1/2-1/2

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