An easy position, for humans

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Spliffjiffer
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Re: An easy position, for humans

Post by Spliffjiffer »

time might have come to u to reinvent the whole game from the very beginning or even the whole planet is actually more sufficent maybe
Wahrheiten sind Illusionen von denen wir aber vergessen haben dass sie welche sind.
Rodolfo Leoni
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Re: An easy position, for humans

Post by Rodolfo Leoni »

Lyudmil Tsvetkov wrote:
Nay Lin Tun wrote:Evaluations are just imaginary scores for engines to lead to the right path. I dont mind seeing an engine's scores of +9 or +3 or +1 in a draw position unless these evaluations lead the engine from the right to the wrong path. (I mean from win to draw or from draw to lose etc). In this position my sf without szygy did not do a mistake and did the right moves that lead to draw. So my sf did the perfect job. The thing is that sf moving white king from h1 , f3,d1 triangle is that all moves within these triangle lead to the same draw result.

How often engines do mistake in a standard 2 hour game in common 4 cores desktop? SF will do more than 99% accuracy, while super GM will do 95-98% accuracy at most. In fact there is no human being who can legitimately claim a win against stockfish in a standard setting. (2 hour game).There may be one in Million game where human might win. Do u still think who is better? Judge by your common sense.

In term of positional evaluations, there are lots of human mistakes in 500 ECO opening lines where 10-20 % of those ECO popular lines are unplayable and forced lose to one side(eg,some gambits variationns , some variations of King Indian defense and some variations of King Gambit accepted. ). Meanwhile , how often stockfish lead to wrong or inferior variation in opening ?Just show me that rarity. May be one in hundred game or one in thousand game, I wanna see that opening line. Same to middle games and endgames as well. In endgame , engines do more mistakes but still far more accurate statistically than GM.

Now these days, GM or IM commentators do not dare to comment on live game without computer assist as they know that they will likely make a funny joke if they express their own opinion.
don't listen to Rodolfino, there is no provocation on my side whatsoever.

yes, evals are imaginary scores, but without those scores, an engine can not play at all!
no matter how advanced its search is.

claiming that engines play openings better than top humans is very unrealistic, of course.

in terms of opening play, SF is somewhere the level of a 1800 elo player, not more, sometimes even 1500.

actually, I can not think of a position, where SF would pick the right opening move, maybe there are couple of those, but I still can not promptly think of one.

if you know one, please post.
It's impossible to have a serious discussion with this troll around. He perverts any word at his own advantage, for his search of glory. Everything goes off topic, becoming the "realistic" demo of how silly are engines and how great and deep his knowledge is.
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Lyudmil Tsvetkov
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Re: An easy position, for humans

Post by Lyudmil Tsvetkov »

Spliffjiffer wrote:time might have come to u to reinvent the whole game from the very beginning or even the whole planet is actually more sufficent maybe
I don't understand you.

if precisely 20 years ago the very top human player, Kasparov only managed to draw Deep Blue, roughly, and now SF is 700 elo stronger than Deep Blue/Kasparov, definitely a lot of water has passed under the chess bridge.

including under the theoretical chess bridge.

in 20 more years, current SF will be another 700 elo or so weaker than the then strongest engine, so definitely a whole lot more knowledge to uncover and strength to gain.

what is so unusual about that?

people nowadays, who would whole-heartedly want to do that, definitely process 10 times more information that Kasparov, and also much more valuable information, as considerable part of it might be checked with SF.

so, it is much easier nowadays to decide which opening moves are best than that was the case 20 years ago.

1.c4 is definitely best.

just checked last 2 remaining off-beat black replies, g6 and e6(f5 fails to 2.d4 e6 3.d5), and with very high certainty am able to claim 1.c4 should win in some 90% of lines, whatever that means.

the precentages for 1.e4 and 1.d4 are definitely much lower, especially for d4.

on 1.e4, black has c5, very close to equality, while on 1.d4 both the best c5, which leads to a draw some dozens moves later, and the Dutch stonewall with 1...d5 2.c4 e6 3.Nc3 f5, leading to a draw 30 moves later, equalise completely, with a known outcome.
Lyudmil Tsvetkov
Posts: 6052
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Re: An easy position, for humans

Post by Lyudmil Tsvetkov »

Rodolfo Leoni wrote:
Lyudmil Tsvetkov wrote:
Nay Lin Tun wrote:Evaluations are just imaginary scores for engines to lead to the right path. I dont mind seeing an engine's scores of +9 or +3 or +1 in a draw position unless these evaluations lead the engine from the right to the wrong path. (I mean from win to draw or from draw to lose etc). In this position my sf without szygy did not do a mistake and did the right moves that lead to draw. So my sf did the perfect job. The thing is that sf moving white king from h1 , f3,d1 triangle is that all moves within these triangle lead to the same draw result.

How often engines do mistake in a standard 2 hour game in common 4 cores desktop? SF will do more than 99% accuracy, while super GM will do 95-98% accuracy at most. In fact there is no human being who can legitimately claim a win against stockfish in a standard setting. (2 hour game).There may be one in Million game where human might win. Do u still think who is better? Judge by your common sense.

In term of positional evaluations, there are lots of human mistakes in 500 ECO opening lines where 10-20 % of those ECO popular lines are unplayable and forced lose to one side(eg,some gambits variationns , some variations of King Indian defense and some variations of King Gambit accepted. ). Meanwhile , how often stockfish lead to wrong or inferior variation in opening ?Just show me that rarity. May be one in hundred game or one in thousand game, I wanna see that opening line. Same to middle games and endgames as well. In endgame , engines do more mistakes but still far more accurate statistically than GM.

Now these days, GM or IM commentators do not dare to comment on live game without computer assist as they know that they will likely make a funny joke if they express their own opinion.
don't listen to Rodolfino, there is no provocation on my side whatsoever.

yes, evals are imaginary scores, but without those scores, an engine can not play at all!
no matter how advanced its search is.

claiming that engines play openings better than top humans is very unrealistic, of course.

in terms of opening play, SF is somewhere the level of a 1800 elo player, not more, sometimes even 1500.

actually, I can not think of a position, where SF would pick the right opening move, maybe there are couple of those, but I still can not promptly think of one.

if you know one, please post.
It's impossible to have a serious discussion with this troll around. He perverts any word at his own advantage, for his search of glory. Everything goes off topic, becoming the "realistic" demo of how silly are engines and how great and deep his knowledge is.
but did not you just post a position, where you claim SF is silly?

that is the topic of the thread, and I am just expanding on it, completely agreeing engines miss many things.

especially in the opening.

where is your problem?

or, maybe you wanted to discuss at length your over-simplistic position, where, there are 6 forced moves, after which the position reaches an, already known, tbs outcome.

what is there to discuss about it?

on the contrary, there is a whooole lot to discuss in-depth about opening theory and engines.

I am also unhappy with you, but I don't cal you troll.

it's basic education maybe, after all, the first 5, or was it 7 years? :)
Rodolfo Leoni
Posts: 545
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Location: Italy

Re: An easy position, for humans

Post by Rodolfo Leoni »

Lyudmil Tsvetkov wrote:
Spliffjiffer wrote:time might have come to u to reinvent the whole game from the very beginning or even the whole planet is actually more sufficent maybe
I don't understand you.

if precisely 20 years ago the very top human player, Kasparov only managed to draw Deep Blue, roughly, and now SF is 700 elo stronger than Deep Blue/Kasparov, definitely a lot of water has passed under the chess bridge.

including under the theoretical chess bridge.

in 20 more years, current SF will be another 700 elo or so weaker than the then strongest engine, so definitely a whole lot more knowledge to uncover and strength to gain.

what is so unusual about that?

people nowadays, who would whole-heartedly want to do that, definitely process 10 times more information that Kasparov, and also much more valuable information, as considerable part of it might be checked with SF.

so, it is much easier nowadays to decide which opening moves are best than that was the case 20 years ago.

1.c4 is definitely best.

just checked last 2 remaining off-beat black replies, g6 and e6(f5 fails to 2.d4 e6 3.d5), and with very high certainty am able to claim 1.c4 should win in some 90% of lines, whatever that means.

the precentages for 1.e4 and 1.d4 are definitely much lower, especially for d4.

on 1.e4, black has c5, very close to equality, while on 1.d4 both the best c5, which leads to a draw some dozens moves later, and the Dutch stonewall with 1...d5 2.c4 e6 3.Nc3 f5, leading to a draw 30 moves later, equalise completely, with a known outcome.
I'd be glad if you stay out of topics I start.

As an exchange, I'll stay out of the topics you start. (BTW, I can't find any.)
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Guenther
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Re: An easy position, for humans

Post by Guenther »

Rodolfo Leoni wrote:
Lyudmil Tsvetkov wrote:
Spliffjiffer wrote:time might have come to u to reinvent the whole game from the very beginning or even the whole planet is actually more sufficent maybe
I don't understand you.

if precisely 20 years ago the very top human player, Kasparov only managed to draw Deep Blue, roughly, and now SF is 700 elo stronger than Deep Blue/Kasparov, definitely a lot of water has passed under the chess bridge.

including under the theoretical chess bridge.

in 20 more years, current SF will be another 700 elo or so weaker than the then strongest engine, so definitely a whole lot more knowledge to uncover and strength to gain.

what is so unusual about that?

people nowadays, who would whole-heartedly want to do that, definitely process 10 times more information that Kasparov, and also much more valuable information, as considerable part of it might be checked with SF.

so, it is much easier nowadays to decide which opening moves are best than that was the case 20 years ago.

1.c4 is definitely best.

just checked last 2 remaining off-beat black replies, g6 and e6(f5 fails to 2.d4 e6 3.d5), and with very high certainty am able to claim 1.c4 should win in some 90% of lines, whatever that means.

the precentages for 1.e4 and 1.d4 are definitely much lower, especially for d4.

on 1.e4, black has c5, very close to equality, while on 1.d4 both the best c5, which leads to a draw some dozens moves later, and the Dutch stonewall with 1...d5 2.c4 e6 3.Nc3 f5, leading to a draw 30 moves later, equalise completely, with a known outcome.
I'd be glad if you stay out of topics I start.

As an exchange, I'll stay out of the topics you start. (BTW, I can't find any.)
There was a time when we thought an Ignore button (filter certain users) could be acchieved here.
Regrettably it did not happen...
https://rwbc-chess.de

trollwatch:
Chessqueen + chessica + AlexChess
Rodolfo Leoni
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Re: An easy position, for humans

Post by Rodolfo Leoni »

Guenther wrote: There was a time when we thought an Ignore button (filter certain users) could be acchieved here.
Regrettably it did not happen...
As an alternative, a "Troll section" could be started on this forum.

I think there are two different approaches with discussions:

a) To observe a phenomenon, to categorize it, to analyze its aspects and to share opinions;
b) To grab a phenomenon others observed, to generalize it, to alter its aspects and to spread falsehood about it.

I guess many registered users avoid to post because case b is pretty annoying. Case a becomes rare to see.

I can't still understand why one needs to behaves such a way. Not my business, but I feel free to have some impressions and doubts. Heavy troubles with childhood? Still in childhood?

Doesn't matter. I had a question for programmers, I guess I'll mail to Daniel rather than posting it here.
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zullil
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Full name: Louis Zulli

Re: An easy position, for humans

Post by zullil »

Rodolfo Leoni wrote: In fact, position derives from analysis I made with the Deep Blue-Kasparov game, the game McBrain-Komodo Michael posted. This is the position:

[d]8/3r2p1/3P1p1p/1P2k3/1R2p3/2P4P/6P1/6K1 b - - 2 13

In game, Komodo played Kxd6, and white quickly won. The position I posted derives by Rxd6 which seemingly leads to draw.
Latest asmFish agrees with you:

Code: Select all

0.00 13... Rxd6 14. b6 Rd8 15. Kf2 f5 16. Rb5+ Ke6 17. b7 Rb8 18. Ke3 g6 19. Kd4 Kd6 20. g4 fxg4 21. hxg4 Kc6 22. Re5 Kxb7 23. Re7+ Ka6 24. Re6+ Rb6 25. Re7 e3 26. Rxe3 h5 27. gxh5 gxh5 (depth 87, 9:29:46)
I assume this was found before depth 87, but the GUI I'm using only shows the most recent iteration. Maybe I should revert to using a command line ... :wink:
Rodolfo Leoni
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Re: An easy position, for humans

Post by Rodolfo Leoni »

zullil wrote:
Rodolfo Leoni wrote: In fact, position derives from analysis I made with the Deep Blue-Kasparov game, the game McBrain-Komodo Michael posted. This is the position:

[d]8/3r2p1/3P1p1p/1P2k3/1R2p3/2P4P/6P1/6K1 b - - 2 13

In game, Komodo played Kxd6, and white quickly won. The position I posted derives by Rxd6 which seemingly leads to draw.
Latest asmFish agrees with you:

Code: Select all

0.00 13... Rxd6 14. b6 Rd8 15. Kf2 f5 16. Rb5+ Ke6 17. b7 Rb8 18. Ke3 g6 19. Kd4 Kd6 20. g4 fxg4 21. hxg4 Kc6 22. Re5 Kxb7 23. Re7+ Ka6 24. Re6+ Rb6 25. Re7 e3 26. Rxe3 h5 27. gxh5 gxh5 (depth 87, 9:29:46)
I assume this was found before depth 87, but the GUI I'm using only shows the most recent iteration. Maybe I should revert to using a command line ... :wink:
Thanks Louis. :)

I assume you own a monster machine, as well as Peter. I also tried latest AsmFishW with this position, but I gou tired after about 1 hour, depth 50, about 60 millions TB hits, PV 13. ..Kxd6, and score about -120 cps....

I can't remember exact sequence of moves for getting the position I posted at topic start, but I found a similar one:

[pgn][Site "UTENTE-PC"]
[Date "2017.07.22"]
[Round "?"]
[White "Leoni"]
[Black "Leoni"]
[Result "*"]
[BlackElo "2400"]
[Time "12:44:43"]
[WhiteElo "2400"]
[SetUp "1"]
[FEN "8/3r2p1/3P1p1p/1P2k3/1R2p3/2P4P/6P1/6K1 b - - 2 13"]
[Termination "unterminated"]
[PlyCount "24"]
[WhiteType "human"]
[BlackType "human"]

13. ... Rxd6 14. b6 Rd8 15. Kf2 f5 16. Rb5+ Ke6 17. Ke3 Rb8 18. c4 g6 19.
Kd4 Rd8+ 20. Rd5 Rxd5+ 21. cxd5+ Kd6 22. h4 g5 23. hxg5 hxg5 24. g4 f4 25.Kxe4 *

[/pgn]

This is 24 plies ahead, but Asmfish, again, can't see the draw. It quickly reaches depth 43, then it needs a lot of time for depth 44....

[d]8/8/1P1k4/3P2p1/4KpP1/8/8/8 b - - 0 25

Code: Select all

FEN: 8/8/1P1k4/3P2p1/4KpP1/8/8/8 b - - 0 25

AsmFishW_2017-07-10_popcnt:
 8/8	00:00	 803	803k	-1.55	25. ... Kd7 26.Kd3 Kd6 27.Kd4 Kd7 28.Kc3 Kd6 29.Kc4
 9/9	00:00	 1k	1,029k	-1.55	25. ... Kd7 26.Kd3 Kd6 27.Kd4 Kd7 28.Kc3 Kd6 29.Kc4 Kd7
 10/11	00:00	 2k	2,421k	-1.55	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf3 Kd6 29.Kg2 Kd7 30.Kg1 Kd6
 11/13	00:00	 3k	3,431k	-1.55	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf3 Kd6 29.Kf2 Kd7 30.Kg2 Kd6 31.Kf3 Kd7
 12/15	00:00	 7k	6,807k	-1.55	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2
 13/17	00:00	 12k	5,772k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Kg2 Kd6 33.Kf3 Kd7
 14/19	00:00	 15k	7,491k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Ke2 Kd6 31.Kd3 Kd7 32.Kc2 Kd6 33.Kc3 Kd7 34.Kd4 Kd6
 15/21	00:00	 17k	8,381k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Kg2 Kd6 33.Kf3 Kd7 34.Ke4 Kd6 35.Kd4 Kd7
 16/25	00:00	 20k	10,090k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Kg2 Kd6 33.Kf3 Kd7 34.Ke4 Kd6 35.Kd4 Kd7 36.Kc3 Kd6 37.Kc4 Kd7
 17/29	00:00	 23k	7,692k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Ke1 Kd6 33.Kf1 Kd7 34.Ke2 Kd6 35.Kd3 Kd7 36.Kc3 Kd6 37.Kd4 Kd7 38.Ke4 Kd6 39.Kf3 Kd7
 18/29	00:00	 27k	8,920k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Ke1 Kd6 33.Kf1 Kd7 34.Ke2 Kd6 35.Kd3 Kd7 36.Kc2 Kd6 37.Kc3 Kd7 38.Kd4 Kd6 39.Kc4 Kd7
 19/33	00:00	 31k	10,441k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Ke1 Kd6 33.Kf1 Kd7 34.Ke2 Kd6 35.Kd3 Kd7 36.Kc2 Kd6 37.Kc1 Kd7 38.Kd2 Kd6 39.Kc3 Kd7 40.Kd4 Kd6 41.Kc4 Kd7
 20/33	00:00	 36k	9,001k	-1.48	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Ke1 Kd7 30.Kf1 Kd6 31.Kf2 Kd7 32.Ke1 Kd6 33.Kf1 Kd7 34.Ke2 Kd6 35.Kd3 Kd7 36.Kd4 Kd6 37.Kc4 Kd7 38.Kc3 Kd6 39.Kd2 Kd7 40.Kc1 Kd6 41.Kc2 Kd7
 21/33	00:00	 42k	10,484k	-1.40	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kd2 Kd7 34.Kc1 Kd6 35.Kc2 Kd7 36.Kd2 Kd6 37.Kd3 Kd7 38.Ke2 Kd6 39.Kf2 Kd7 40.Kf3 Kd6
 22/33	00:00	 46k	11,511k	-1.40	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kd2 Kd7 34.Kc2 Kd6 35.Kd3 Kd7 36.Ke2 Kd6 37.Kf2 Kd7 38.Kf3 Kd6
 23/35	00:00	 52k	10,317k	-1.40	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kd3 Kd7 34.Ke2 Kd6 35.Kf2 Kd7 36.Kg2 Kd6 37.Kh2 Kd7 38.Kh1 Kd6 39.Kg1 Kd7 40.Kh2 Kd6 41.Kg2 Kd7 42.Kf3 Kd6
 24/37	00:00	 56k	11,281k	-1.40	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kd3 Kd7 34.Kc2 Kd6 35.Kc3 Kd7 36.Kd2 Kd6 37.Ke1 Kd7 38.Ke2 Kd6 39.Kf2 Kd7 40.Kg2 Kd6 41.Kh2 Kd7 42.Kh1 Kd6 43.Kg2 Kd7
 25/39	00:00	 67k	11,128k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd3 Kd7 32.Ke2 Kd6 33.Kf1 Kd7 34.Ke1 Kd6 35.Kf2 Kd7 36.Kf1 Kd6 37.Ke1 Kd7 38.Kd2 Kd6 39.Kc3 Kd7 40.Kc2 Kd6
 26/43	00:00	 73k	10,462k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kd3 Kd7 34.Ke2 Kd6 35.Ke1 Kd7 36.Kf1 Kd6 37.Kg1 Kd7 38.Kh2 Kd6 39.Kg2 Kd7 40.Kg1 Kd6 41.Kh2 Kd7 42.Kg2 Kd6 43.Kf2 Kd7 44.Ke1 Kd6 45.Kd2 Kd7 46.Kc2 Kd6
 27/45	00:00	 89k	11,074k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kd3 Kd7 34.Ke2 Kd6 35.Kf2 Kd7 36.Ke1 Kd6 37.Kf1 Kd7 38.Kg1 Kd6 39.Kg2 Kd7 40.Kf1 Kd6 41.Ke1 Kd7 42.Kd2 Kd6 43.Kc1 Kd7 44.Kc2 Kd6 45.Kc3 Kd7 46.Kd4 Kd6 47.Kc4 Kd7
 28/45	00:00	 98k	10,943k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc4 Kd6 33.Kc3 Kd7 34.Kd4 Kd6 35.Kd3 Kd7 36.Ke2 Kd6 37.Kf2 Kd7 38.Ke1 Kd6 39.Kf1 Kd7 40.Kg2 Kd6 41.Kg1 Kd7 42.Kf1 Kd6 43.Ke1 Kd7 44.Kd1 Kd6 45.Kc2 Kd7 46.Kc3 Kd6 47.Kc4 Kd7
 29/49	00:00	 112k	11,202k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc4 Kd6 33.Kd3 Kd7 34.Ke2 Kd6 35.Kf2 Kd7 36.Kf1 Kd6 37.Kg2 Kd7 38.Kg1 Kd6 39.Kf1 Kd7 40.Ke1 Kd6 41.Kd2 Kd7 42.Kc1 Kd6 43.Kc2 Kd7 44.Kd2 Kd6 45.Kc1 Kd7 46.Kc2 Kd6 47.Kc3 Kd7 48.Kd4 Kd6 49.Kc4 Kd7
 30/51	00:00	 150k	11,521k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd3 Kd7 32.Ke2 Kd6 33.Kf2 Kd7 34.Kf1 Kd6 35.Kg2 Kd7 36.Kg1 Kd6 37.Kh1 Kd7 38.Kg2 Kd6 39.Kf1 Kd7 40.Ke1 Kd6 41.Kd2 Kd7 42.Kc2 Kd6 43.Kc1 Kd7 44.Kd2 Kd6 45.Kc2 Kd7 46.Kc3 Kd6 47.Kc4 Kd7 48.Kd4 Kd6 49.Kc3 Kd7 50.Kc4 Kd6
 31/53	00:00	 167k	11,111k	-1.44	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd3 Kd7 32.Ke2 Kd6 33.Kf2 Kd7 34.Kf1 Kd6 35.Kg2 Kd7 36.Kg1 Kd6 37.Kh1 Kd7 38.Kg2 Kd6 39.Kf1 Kd7 40.Ke1 Kd6 41.Kd2 Kd7 42.Kc2 Kd6 43.Kc1 Kd7 44.Kd1 Kd6 45.Kc2 Kd7 46.Kc3 Kd6 47.Kc4 Kd7 48.Kd4 Kd6 49.Kc3 Kd7 50.Kc4 Kd6 51.Kd4 Kd7
 32/55	00:00	 257k	11,698k	-1.43	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Ke4 Kd6 31.Kd4 Kd7 32.Kc3 Kd6 33.Kc4 Kd7 34.Kd4 Kd6 35.Kc3 Kd7 36.Kc4 Kd6 37.Kd3 Kd7 38.Ke2 Kd6 39.Kf2 Kd7 40.Kf1 Kd6 41.Ke1 Kd7 42.Kd2 Kd6 43.Kc1 Kd7 44.Kd1 Kd6 45.Kc2 Kd7 46.Kc1 Kd6 47.Kd2 Kd7 48.Ke1 Kd6 49.Kf1 Kd7 50.Kg1 Kd6 51.Kg2 Kd7 52.Kf3 Kd6
 33/55	00:00	 288k	12,017k	-1.35	25. ... Kd7 26.Kd3 Kd6 27.Ke2 Kd7 28.Kf2 Kd6 29.Kf3 Kd7 30.Kg2 Kd6 31.Kf2 Kd7 32.Kf3 Kd6 33.Kg2 Kd7 34.Kg1 Kd6 35.Kf1 Kd7 36.Ke1 Kd6 37.Kd2 Kd7 38.Kc2 Kd6 39.Kd3 Kd7 40.Ke2 Kd6 41.Ke1 Kd7 42.Kd2 Kd6 43.Kc3 Kd7 44.Kd4 Kd6 45.Kc4 Kd7 46.Kc3 Kd6 47.Kd4 Kd7
 34/59	00:00	 554k	13,194k	-1.35	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kc4 Kd7 30.Kd4 Kd6 31.Kc3 Kd7 32.Kc4 Kd6 33.Kd4 Kd7 34.Ke4 Kd6 35.Kf3 Kd7 36.Kf2 Kd6 37.Kg1 Kd7 38.Kf1 Kd6 39.Ke1 Kd7 40.Kd1 Kd6 41.Kd2 Kd7 42.Kc2 Kd6 43.Kd3 Kd7 44.Ke2 Kd6 45.Kf2 Kd7 46.Kg2 Kd6 47.Kh2 Kd7 48.Kh1 Kd6 49.Kg2 Kd7 50.Kf3 Kd6 51.Ke2 Kd7
 35/59	00:00	 911k	14,234k	-1.43	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kc4 Kd7 30.Kd4 Kd6 31.Kc3 Kd7 32.Kc4 Kd6 33.Kd3 Kd7 34.Kd2 Kd6 35.Ke2 Kd7 36.Kf3 Kd6 37.Kf2 Kd7 38.Kg2 Kd6 39.Kh1 Kd7 40.Kh2 Kd6 41.Kg1 Kd7 42.Kf2 Kd6 43.Kf3 Kd7 44.Ke2 Kd6 45.Kf1 Kd7 46.Kg1 Kd6 47.Kh2 Kd7 48.Kh1 Kd6 49.Kg2 Kd7
 36/65	00:00	 946k	14,332k	-1.43	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kc4 Kd7 30.Kd4 Kd6 31.Kc3 Kd7 32.Kc2 Kd6 33.Kd2 Kd7 34.Ke1 Kd6 35.Kf1 Kd7 36.Kf2 Kd6 37.Ke1 Kd7 38.Kd1 Kd6 39.Kc1 Kd7 40.Kd2 Kd6 41.Ke2 Kd7 42.Kf3 Kd6 43.Kf2 Kd7 44.Kg1 Kd6 45.Kh1 Kd7 46.Kh2 Kd6 47.Kg2 Kd7 48.Kf1 Kd6 49.Kg1 Kd7 50.Kh1 Kd6 51.Kh2 Kd7 52.Kg2 Kd6 53.Kf3 Kd7 54.Ke2 Kd6 55.Kd3 Kd7 56.Ke4 Kd6 57.Kd4 Kd7
 37/65	00:00	 1,099k	14,857k	-1.43	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kc4 Kd7 30.Kd4 Kd6 31.Kc3 Kd7 32.Kd2 Kd6 33.Ke2 Kd7 34.Kf3 Kd6 35.Kf2 Kd7 36.Kg1 Kd6 37.Kh2 Kd7 38.Kg2 Kd6 39.Kf1 Kd7 40.Kf2 Kd6 41.Kg1 Kd7 42.Kh2 Kd6 43.Kg2 Kd7 44.Kf1 Kd6 45.Ke1 Kd7 46.Ke2 Kd6 47.Kf3 Kd7 48.Ke4 Kd6 49.Kd4 Kd7 50.Kc4 Kd6 51.Kd3 Kd7 52.Kc2 Kd6 53.Kc1 Kd7
 38/69	00:15	 183,696k	11,800k	-1.43	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kd1 Kd6 29.Ke1 Kd7 30.Kf2 Kd6 31.Kg1 Kd7 32.Kf1 Kd6 33.Kg2 Kd7 34.Kf3 Kd6 35.Kf2 Kd7 36.Ke1 Kd6 37.Kf1 Kd7 38.Kg1 Kd6 39.Kh1 Kd7 40.Kg2 Kd6 41.Kf3 Kd7 42.Ke2 Kd6 43.Kd2 Kd7 44.Kc3 Kd6 45.Kc4 Kd7 46.Kd4 Kd6 47.Kd3 Kd7 48.Kd2 Kd6 49.Kc3 Kd7 50.Kc4 Kd6 51.Kd4 Kd7 52.Ke4 Kd6
 39/69	00:15	 183,817k	11,798k	-1.43	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kd2 Kd6 29.Kc3 Kd7 30.Kc2 Kd6 31.Kc1 Kd7 32.Kd1 Kd6 33.Kd2 Kd7 34.Ke1 Kd6 35.Kf2 Kd7 36.Ke2 Kd6 37.Ke1 Kd7 38.Kf2 Kd6 39.Ke2 Kd7 40.Kf1 Kd6 41.Kg1 Kd7 42.Kh1 Kd6 43.Kg2 Kd7 44.Kg1 Kd6 45.Kh1 Kd7 46.Kg2 Kd6 47.Kf3 Kd7 48.Ke4 Kd6 49.Kd4 Kd7 50.Kc4 Kd6 51.Kd3 Kd7 52.Kd4 Kd6 53.Kc4 Kd7 54.Kc3 Kd6
 40/69	00:18	 211,402k	11,547k	-1.36	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kd4 Kd7 30.Ke4 Kd6 31.Kd3 Kd7 32.Kd4 Kd6 33.Kc3 Kd7 34.Kd2 Kd6 35.Ke2 Kd7 36.Kf3 Kd6 37.Kg2 Kd7 38.Kf2 Kd6 39.Kf3 Kd7 40.Ke2 Kd6 41.Kf2 Kd7 42.Ke1 Kd6 43.Kf1 Kd7 44.Kg2 Kd6 45.Kh3 Kd7 46.Kh2 Kd6 47.Kh1 Kd7 48.Kg1 Kd6 49.Kh2 Kd7 50.Kh1 Kd6 51.Kg1 Kd7 52.Kf1 Kd6 53.Ke1 Kd7 54.Kd1 Kd6 55.Kd2 Kd7 56.Kc1 Kd6 57.Kd1 Kd7 58.Kc2 Kd6 59.Kc1 Kd7
 41/71+	02:00	 1,378,527k	11,432k	-1.29	25. ... Kd7
 41/73	02:03	 1,402,424k	11,394k	-1.28	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kd4 Kd7 30.Ke4 Kd6 31.Kf3 Kd7 32.Kf2 Kd6 33.Kg2 Kd7 34.Kf3 Kd6 35.Kf2 Kd7 36.Ke2 Kd6 37.Kf1 Kd7 38.Kg1 Kd6 39.Kh1 Kd7 40.Kh2 Kd6 41.Kh3 Kd7 42.Kg2 Kd6 43.Kh2 Kd7 44.Kh1 Kd6 45.Kg1 Kd7 46.Kf1 Kd6 47.Ke1 Kd7 48.Kd1 Kd6 49.Ke2 Kd7 50.Ke1 Kd6 51.Kd2 Kd7 52.Kc1 Kd6 53.Kd1 Kd7 54.Kd2 Kd6 55.Kc1 Kd7 56.Kc2 Kd6 57.Kc3 Kd7 58.Kc4 Kd6 59.Kd3 Kd7 60.Kd4 Kd6 61.Kc4 Kd7
 42/75	02:08	 1,461,673k	11,345k	-1.28	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kd4 Kd7 30.Ke4 Kd6 31.Kf3 Kd7 32.Kf2 Kd6 33.Kg2 Kd7 34.Kf3 Kd6 35.Kf2 Kd7 36.Kf1 Kd6 37.Kg1 Kd7 38.Kh1 Kd6 39.Kh2 Kd7 40.Kg2 Kd6 41.Kh3 Kd7 42.Kh2 Kd6 43.Kh1 Kd7 44.Kg1 Kd6 45.Kf1 Kd7 46.Ke2 Kd6 47.Ke1 Kd7 48.Kd1 Kd6 49.Ke2 Kd7 50.Ke1 Kd6 51.Kd2 Kd7 52.Kc1 Kd6 53.Kd1 Kd7 54.Kc2 Kd6 55.Kc1 Kd7 56.Kd2 Kd6 57.Kd3 Kd7 58.Kc4 Kd6 59.Kc3 Kd7 60.Kd4 Kd6 61.Kc4 Kd7 62.Kc5 f3
 43/75	02:10	 1,477,065k	11,336k	-1.28	25. ... Kd7 26.Kd3 Kd6 27.Kc2 Kd7 28.Kc3 Kd6 29.Kd4 Kd7 30.Ke4 Kd6 31.Kf3 Kd7 32.Kf2 Kd6 33.Kg2 Kd7 34.Kf3 Kd6 35.Kf2 Kd7 36.Ke2 Kd6 37.Kd1 Kd7 38.Kc2 Kd6 39.Kc1 Kd7 40.Kd1 Kd6 41.Ke2 Kd7 42.Ke1 Kd6 43.Kf1 Kd7 44.Kg2 Kd6 45.Kh3 Kd7 46.Kh2 Kd6 47.Kh1 Kd7 48.Kg1 Kd6 49.Kh2 Kd7 50.Kh1 Kd6 51.Kg1 Kd7 52.Kf1 Kd6 53.Ke1 Kd7 54.Kd2 Kd6 55.Kc3 Kd7 56.Kc4 Kd6 57.Kd3 Kd7 58.Kd4 Kd6 59.Kc4 Kd7

i7, 2 GB hash, 5 men TBs,

Regards,
Rodolfo
F.S.I. Chess Teacher
Rodolfo Leoni
Posts: 545
Joined: Tue Jun 06, 2017 4:49 pm
Location: Italy

Re: An easy position, for humans

Post by Rodolfo Leoni »

And there's also something else I consider worth of attention. Let's continue the game to a possible end....

[pgn][Event "Computer chess game"]
[Site "UTENTE-PC"]
[Date "2017.07.22"]
[Round "?"]
[White "Leoni"]
[Black "Andscacs091"]
[Result "*"]
[BlackElo "3000"]
[Time "12:44:43"]
[WhiteElo "2400"]
[SetUp "1"]
[FEN "8/3r2p1/3P1p1p/1P2k3/1R2p3/2P4P/6P1/6K1 b - - 2 13"]
[Termination "unterminated"]
[PlyCount "40"]
[WhiteType "human"]
[BlackType "program"]

13. ... Rxd6 14. b6 Rd8 15. Kf2 f5 16. Rb5+ Ke6 17. Ke3 Rb8 18. c4 g6 19.
Kd4 Rd8+ 20. Rd5 Rxd5+ 21. cxd5+ Kd6 22. h4 g5 23. hxg5 hxg5 24. g4 f4 25.
Kxe4 Kd7 26. Kd4 Kd6 27. b7 Kc7 28. Ke5 f3 29. d6+ Kxb7 30. Ke6 f2 31. d7
Kc7 32. Ke7 f1=Q 33. d8=Q+ *

[/pgn]

We reach a dead draw position. Engines with TB support easily score it as draw, but, for example, Andscacs with no TBs shows a decisive advantage for W. Here, the most interesting aspect to note, is the repetitive score at any depth. Could it be a way to detect a draw?

Code: Select all

FEN: 3Q4/2k1K3/8/6p1/6P1/8/8/5q2 b - - 0 33

Andscacs091:
 8/23	00:00	 18k	3,563k	-2.59	33. ... Kc6 34.Qd7+ Kb6 35.Qd6+ Kb7 36.Qb4+ Kc7 37.Qc5+ Kb8 38.Qxg5 Kb7 39.Qd5+ Kb8 40.Qd6+ Kb7
 9/26	00:00	 33k	4,693k	-3.16	33. ... Kc6 34.Qa8+ Kb6 35.Qb8+ Ka6 36.Qd6+ Kb7 37.Qd5+ Ka6 38.Qxg5 Kb7 39.Qd5+ Kb8 40.Qd6+ Kb7 41.g5
 10/29	00:00	 48k	5,318k	-3.34	33. ... Kc6 34.Qd7+ Kb6 35.Qd4+ Kb7 36.Qb4+ Kc7 37.Qa5+ Kb8 38.Qxg5 Kb7 39.Qd5+ Kb8 40.Qd6+ Kb7 41.g5 Kc8
 11/27	00:00	 64k	5,833k	-3.43	33. ... Kc6 34.Qa8+ Kb6 35.Qb8+ Ka6 36.Qd6+ Kb7 37.Qb4+ Kc7 38.Qc5+ Kb8 39.Qxg5 Kb7 40.Qd5+ Kb8 41.g5 Qf4 42.g6
 12/36	00:00	 132k	7,341k	-3.42	33. ... Kc6 34.Qd7+ Kb6 35.Qd4+ Kb7 36.Qd5+ Ka6 37.Qxg5 Kb7 38.Qd5+ Kb8 39.Qe5+ Kb7 40.Qf5 Qh3 41.Qe4+ Ka6 42.g5 Qc3 43.Kf7
 16/36	00:00	 783k	6,996k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qd5+ Kb6 36.Qxg5 Qc4 37.Qf6+ Ka7 38.g5 Ka8 39.g6 Qc7+ 40.Kf8 Qc8+ 41.Kg7 Kb7 42.Kh6 Qg4 43.Qe7+ Kc8 44.g7 Qh3+ 45.Kg6 Qg3+ 46.Qg5
 17/44	00:00	 2,068k	4,354k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qd5+ Kb6 36.Qxg5 Qc4 37.Qf6+ Ka7 38.g5 Qc5+ 39.Kf7 Qc4+ 40.Kg6 Qd3+ 41.Kg7 Qe3 42.g6 Qc5 43.Qf7+ Kb6 44.Qf8 Qc1 45.Qf6+ Ka5 46.Qe5+ Ka4
 18/49	00:00	 2,619k	4,130k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qb4+ Ka6 36.Qa4+ Kb7 37.Qe4+ Ka6 38.Qe6+ Kb7 39.Qd5+ Ka6 40.Qxg5 Kb7 41.Qd5+ Kb6 42.Qf5 Qh1 43.g5 Kc7 44.Qe5+ Kb6 45.Qf6+ Kb5 46.Qf5+ Kc6 47.Qe6+ Kb5 48.Qd7+ Kb4
 19/51	00:00	 3,894k	3,969k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qb4+ Ka6 36.Qa4+ Kb7 37.Qe4+ Ka7 38.Qe3+ Kb7 39.Qxg5 Qh3 40.Qb5+ Ka7 41.Qa4+ Kb7 42.Qe4+ Ka7 43.Qd4+ Kb8 44.g5 Qh7+ 45.Kf8 Qc7 46.g6 Qc8+ 47.Ke7 Qc7+ 48.Qd7 Qe5+ 49.Kf7 Qf4+ 50.Kg7
 20/46	00:01	 5,106k	3,771k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qb4+ Ka6 36.Qa4+ Kb6 37.Qd4+ Kb7 38.Qd5+ Ka6 39.Qxg5 Kb7 40.Qd5+ Kc7 41.Qe5+ Kb7 42.g5 Qd3 43.Qe6 Qh7+ 44.Qf7 Qh4 45.Kf8+ Kb6 46.g6 Qd8+ 47.Qe8 Qd6+ 48.Kg7 Qf4 49.Qe7 Ka5
 22/56	00:03	 11,338k	3,715k	-3.43	33. ... Kc6 34.Qa8+ Kb6 35.Qb8+ Ka6 36.Qd6+ Ka7 37.Qc5+ Ka6 38.Qc6+ Ka7 39.Qa4+ Kb7 40.Qe4+ Ka7 41.Qe3+ Ka6 42.Qxg5 Kb7 43.Qg6 Ka7 44.g5 Qa1 45.Qf7 Qg1 46.g6 Ka6 47.Qf6+ Kb5 48.g7 Qa7+ 49.Kf8 Qb8+ 50.Kf7
 23/74	00:05	 21,086k	3,817k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qd5+ Kb6 36.Qxg5 Qe2+ 37.Kf8 Qf3+ 38.Qf5 Qa3+ 39.Kf7 Qa7+ 40.Kg6 Qa8 41.g5 Qg8+ 42.Kh5 Qh8+ 43.Kg4 Kb7 44.Qd5+ Ka7 45.g6 Ka6 46.Kg5 Qc3 47.Kf5 Qh8 48.Qe6+ Kb7 49.Kg5 Kb8 50.Qe7 Qh2
 24/61	00:06	 25,170k	3,790k	-3.43	33. ... Kc6 34.Qd7+ Kb6 35.Qe6+ Kb5 36.Qd5+ Kb6 37.Qxg5 Qe2+ 38.Kf8 Qf3+ 39.Qf5 Qa3+ 40.Kf7 Qa7+ 41.Kg6 Qa8 42.Kg7 Qg2 43.Qf6+ Kc7 44.Qe7+ Kc6 45.g5 Kb5 46.Qd7+ Ka5 47.Qf5+ Kb4 48.g6 Kc3 49.Qe5+ Kc2 50.Qe7 Qg3 51.Qc5+ Kb1 52.Kf6 Qg2
 25/55	00:07	 26,404k	3,397k	-3.43	33. ... Kc6 34.Qa8+ Kc5 35.Qa3+ Kc6 36.Qd6+ Kb7 37.Qb4+ Ka6 38.Qa3+ Kb7 39.Qb3+ Kc6 40.Qe6+ Kb7 41.Qd5+ Ka6 42.Qxg5 Qh3 43.Kf7 Ka7 44.Qg6 Kb7 45.Qe4+ Kb6 46.g5 Qf1+ 47.Kg8 Qa1 48.Qe6+ Kb5 49.g6 Qa8+ 50.Kh7 Qh1+ 51.Kg7 Qf3 52.Qd7+ Kb4
 26/74	00:10	 36,501k	3,370k	-3.43	33. ... Kc6 34.Qa8+ Kc5 35.Qa5+ Kc6 36.Qc3+ Kd5 37.Qb3+ Kc5 38.Qe3+ Kc6 39.Qe4+ Kb6 40.Qd4+ Kb5 41.Qe5+ Kb4 42.Qxg5 Qc4 43.Qf5 Qg8 44.g5 Qg7+ 45.Ke6 Qc3 46.Qe4+ Kb3 47.g6 Qc8+ 48.Kf7 Qc7+ 49.Kf6 Qd8+ 50.Qe7 Qd4+ 51.Qe5 Qd8+ 52.Kf7 Qd7+ 53.Kf8 Qc8+ 54.Qe8 Qc5+ 55.Kg7 Qd6 56.Qe3+ Kb2 57.Kf7 Qd5+ 58.Qe6
 27/69	00:17	 59,489k	3,491k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qb4+ Ka6 36.Qa4+ Kb7 37.Qe4+ Ka7 38.Qe3+ Ka6 39.Qxg5 Qe2+ 40.Kf7 Qc4+ 41.Kg7 Qe2 42.Qf5 Qe7+ 43.Qf7 Qe2 44.Qg6+ Kb5 45.Qf5+ Kc6 46.Kf7 Kd6 47.g5 Qc4+ 48.Kg7 Qc7+ 49.Kh6 Qc4 50.Qf6+ Kd7 51.g6 Qe2 52.Qf5+ Kd6 53.g7 Qd2+ 54.Qg5
 28/68	00:24	 89,550k	3,711k	-3.43	33. ... Kc6 34.Qa8+ Kb5 35.Qd5+ Ka6 36.Qc6+ Ka5 37.Qc5+ Ka4 38.Qxg5 Qc4 39.Qf5 Qc3 40.g5 Qb4+ 41.Ke8 Qc3 42.Qd7+ Ka3 43.Qe7+ Kb3 44.g6 Qc8+ 45.Kf7 Qf5+ 46.Kg7 Qg4 47.Qe3+ Kc2 48.Qf2+ Kc3 49.Kh6 Kb4 50.Qf6 Qh3+ 51.Kg7 Qg3 52.Kf7 Kb5 53.g7 Qc7+ 54.Kg6
 29/78	00:28	 125,301k	4,472k	-3.43	33. ... Kc6 34.Qa8+ Kb5 35.Qd5+ Ka6 36.Qc6+ Ka7 37.Qa4+ Kb7 38.Qe4+ Ka6 39.Qg6+ Kb5 40.Qxg5+ Ka4 41.Qe5 Qf3 42.Qf5 Qe3+ 43.Kf7 Qa7+ 44.Kg6 Qa8 45.g5 Qh1 46.Kf6 Qh8+ 47.Kf7 Qh1 48.g6 Qb7+ 49.Kf6 Qb6+ 50.Kg7 Qc7+ 51.Kh6 Qc6 52.Qh3 Ka5 53.Qh5+ Ka4 54.Qf5 Qc3 55.Qe4+ Kb3 56.Qe6+ Kc2
 30/73	00:35	 193,823k	5,403k	-3.43	33. ... Kc6 34.Qd6+ Kb7 35.Qb4+ Ka6 36.Qa4+ Kb6 37.Qd4+ Kb7 38.Qd5+ Kb6 39.Qxg5 Qe2+ 40.Kf8 Qf3+ 41.Kg7 Qb7+ 42.Kg6 Qe4+ 43.Kf7 Qe2 44.Kg7 Qg2 45.Qe3+ Kb7 46.Qe7+ Kb6 47.g5 Kc6 48.Kf7 Kb5 49.Qe5+ Kb4 50.Kf6 Qf2+ 51.Qf5 Qb2+ 52.Ke7 Qc3 53.g6 Ka3 54.Kf7 Kb4 55.Qe4+ Kb3

This pattern (repetitive score at any depth) is often seen with some closed pawn structure openings too, such as some KIDs Mar del Plata when engines play it out of any book.
F.S.I. Chess Teacher