Playing the endgame like a boss !!

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glennsamuel32
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Playing the endgame like a boss !!

Post by glennsamuel32 » Tue Mar 12, 2019 6:50 pm

CCC 6
lc0 vs Stockfish
Game 54


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xr_a_y
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Re: Playing the endgame like a boss !!

Post by xr_a_y » Tue Mar 12, 2019 7:35 pm

What the hell is this thing ? is lc0 really played so bad at the end ?

mwyoung
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Re: Playing the endgame like a boss !!

Post by mwyoung » Tue Mar 12, 2019 8:03 pm

xr_a_y wrote:
Tue Mar 12, 2019 7:35 pm
What the hell is this thing ? is lc0 really played so bad at the end ?
Playing bad? Lc0 won the game with Lc0's epic trolling endgame play. Promoting to a rook, sacing the bishop. Sweet.
Professing themselves to be wise, they became fools,
Take on me. foes 0

supersharp77
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Re: Playing the endgame like a boss !!

Post by supersharp77 » Wed Mar 13, 2019 3:58 am

mwyoung wrote:
Tue Mar 12, 2019 8:03 pm
xr_a_y wrote:
Tue Mar 12, 2019 7:35 pm
What the hell is this thing ? is lc0 really played so bad at the end ?
Playing bad? Lc0 won the game with Lc0's epic trolling endgame play. Promoting to a rook, sacing the bishop. Sweet.
E4-E5 Nf3 F5?!.....Your kidding..Right? Result is meaningless...How did Stockfish exactly get one pawn down? :D :wink:

jp
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Re: Playing the endgame like a boss !!

Post by jp » Wed Mar 13, 2019 10:44 am

Why is it doing that when it has tablebases?
Tablebases years ago made normal engines do weird things, but not like this.

ernest
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Re: Playing the endgame like a boss !!

Post by ernest » Wed Mar 13, 2019 3:29 pm

+1 !

Probably did not have tablebases, or ???...

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hgm
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Re: Playing the endgame like a boss !!

Post by hgm » Wed Mar 13, 2019 4:38 pm

It certainly would not play like this even if it had only 3-men EGT (as KRK would be amongst those). This is just what you get if you train the engine to recognize a certain win, but do not train it how to make progress in cashing it. It is equally happy with any KRK position, they are all 100% certain wins. So the pieces just diffuse aimlessly over the board.

jp
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Re: Playing the endgame like a boss !!

Post by jp » Wed Mar 13, 2019 4:43 pm

CCC claim they use 7-man Syzygy TBs.
Wonder if there's some error somewhere.

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hgm
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Re: Playing the endgame like a boss !!

Post by hgm » Thu Mar 14, 2019 8:45 am

That CCC uses 7-men EGT doesn't mean that this particular engine supports uses EGT. Obviously CCC was not using the EGT to adjudicate.

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M ANSARI
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Re: Playing the endgame like a boss !!

Post by M ANSARI » Thu Mar 14, 2019 9:02 am

The sad truth is that there are just way too many games like that with Lc0 and while in this case the end result was still a win for Lc0 … on many occasions there is a draw or even a loss, in what was a winning position. It is behaviour like this that makes Lc0 useless as a stand alone chess engine to analyse with. This needs to be fixed pronto!

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