ScratchChessChampion wrote:

Scratch Chess Federation

The official website of the Scratch Chess Federation (SCF) is finally out! I'm thrilled to announce the launch of the website . To explore and join in the fun, simply click on the link below:

https://scratch.mit.edu/projects/991157718/

HasiLover wrote:

I let a Game between Scurious 2.11 and GoK run from the Gme yesterday and GoK played 7 Blunders on my System :https://lichess.org/j1tLUL5Y#86
Also Scurious sacrificed its Rook and Bishop and Stockfish completely approved whilst GoK dissaproved for a While.

birdracerthree wrote:

HasiLover wrote:

I let a Game between Scurious 2.11 and GoK run from the Gme yesterday and GoK played 7 Blunders on my System :https://lichess.org/j1tLUL5Y#86
Also Scurious sacrificed its Rook and Bishop and Stockfish completely approved whilst GoK dissaproved for a While.

I don’t know why Scurious didn’t play 33…Bxe3. I assume this is GoK S3 Difficult vs Scurious Ply 5?

Not a good game from GoK. Even GoK makes errors when it comes out of its opening book too early (that’s usually a White Dove thing).

ArnoHu wrote:

birdracerthree wrote:

HasiLover wrote:

I let a Game between Scurious 2.11 and GoK run from the Gme yesterday and GoK played 7 Blunders on my System :https://lichess.org/j1tLUL5Y#86
Also Scurious sacrificed its Rook and Bishop and Stockfish completely approved whilst GoK dissaproved for a While.

I don’t know why Scurious didn’t play 33…Bxe3. I assume this is GoK S3 Difficult vs Scurious Ply 5?

Not a good game from GoK. Even GoK makes errors when it comes out of its opening book too early (that’s usually a White Dove thing).

Checkmate in #4, that was a close call. But it must be an immensely slow system. On my machine, GoK does not even consider 22. g3 for a second, and if it had done, depth 8 would have shown the checkmate, and that is covered in 2 seconds.

The blunders of both engines are mainly the same - moving in and out of a checkmate sequences both don't see. The most interesting blunder is the first one at move 19 - and that one GoK prevents after 31 seconds on my machine, slightly out of Difficult think time, so it would require competition mode.

Was Scurious on Ply 4 or 5? I wonder how Scurious think time was, I know it is fast, but so is GoK. Do you still have the GoK logfile? It seems GoK was limited to below ply 8 due to low system performance, and that is not really the expected operations mode for GoK Difficult on TW - it will act more like Blitz 1 or 2.

HasiLover wrote:

ArnoHu wrote:

birdracerthree wrote:

HasiLover wrote:

I let a Game between Scurious 2.11 and GoK run from the Gme yesterday and GoK played 7 Blunders on my System :https://lichess.org/j1tLUL5Y#86
Also Scurious sacrificed its Rook and Bishop and Stockfish completely approved whilst GoK dissaproved for a While.

I don’t know why Scurious didn’t play 33…Bxe3. I assume this is GoK S3 Difficult vs Scurious Ply 5?

Not a good game from GoK. Even GoK makes errors when it comes out of its opening book too early (that’s usually a White Dove thing).

Checkmate in #4, that was a close call. But it must be an immensely slow system. On my machine, GoK does not even consider 22. g3 for a second, and if it had done, depth 8 would have shown the checkmate, and that is covered in 2 seconds.

The blunders of both engines are mainly the same - moving in and out of a checkmate sequences both don't see. The most interesting blunder is the first one at move 19 - and that one GoK prevents after 31 seconds on my machine, slightly out of Difficult think time, so it would require competition mode.

Was Scurious on Ply 4 or 5? I wonder how Scurious think time was, I know it is fast, but so is GoK. Do you still have the GoK logfile? It seems GoK was limited to below ply 8 due to low system performance, and that is not really the expected operations mode for GoK Difficult on TW - it will act more like Blitz 1 or 2.

Scurious was on 5 Ply, I ran GoK Difficult on TW + Turbo mode.
Also I dont have the LogFile sadly.

ArnoHu wrote:

HasiLover wrote:

ArnoHu wrote:

birdracerthree wrote:

HasiLover wrote:

I let a Game between Scurious 2.11 and GoK run from the Gme yesterday and GoK played 7 Blunders on my System :https://lichess.org/j1tLUL5Y#86
Also Scurious sacrificed its Rook and Bishop and Stockfish completely approved whilst GoK dissaproved for a While.

*snip*

Checkmate in #4, that was a close call. But it must be an immensely slow system. On my machine, GoK does not even consider 22. g3 for a second, and if it had done, depth 8 would have shown the checkmate, and that is covered in 2 seconds.

The blunders of both engines are mainly the same - moving in and out of a checkmate sequences both don't see. The most interesting blunder is the first one at move 19 - and that one GoK prevents after 31 seconds on my machine, slightly out of Difficult think time, so it would require competition mode.

Was Scurious on Ply 4 or 5? I wonder how Scurious think time was, I know it is fast, but so is GoK. Do you still have the GoK logfile? It seems GoK was limited to below ply 8 due to low system performance, and that is not really the expected operations mode for GoK Difficult on TW - it will act more like Blitz 1 or 2.

Scurious was on 5 Ply, I ran GoK Difficult on TW + Turbo mode.
Also I dont have the LogFile sadly.

Thanks!

In the meantime, GoK (white) drew this game against Stockfish 16 level 7. GoK up 3 to 5, but the winning line was long and required material sacrifice. At one point GoK might have found it by accident to prevent threefold-repetition, maybe in a day or two :-) OK 50-moves-rule would have come first.

https://lichess.org/0JnI4fO6#165

Drawing a game at 95% accuracy, with only 2 inaccuracies out of 90 moves, pains me a bit.

ArnoHu wrote:

HasiLover wrote:

ArnoHu wrote:

birdracerthree wrote:

HasiLover wrote:

I let a Game between Scurious 2.11 and GoK run from the Gme yesterday and GoK played 7 Blunders on my System :https://lichess.org/j1tLUL5Y#86
Also Scurious sacrificed its Rook and Bishop and Stockfish completely approved whilst GoK dissaproved for a While.

I don’t know why Scurious didn’t play 33…Bxe3. I assume this is GoK S3 Difficult vs Scurious Ply 5?

Not a good game from GoK. Even GoK makes errors when it comes out of its opening book too early (that’s usually a White Dove thing).

Checkmate in #4, that was a close call. But it must be an immensely slow system. On my machine, GoK does not even consider 22. g3 for a second, and if it had done, depth 8 would have shown the checkmate, and that is covered in 2 seconds.

The blunders of both engines are mainly the same - moving in and out of a checkmate sequences both don't see. The most interesting blunder is the first one at move 19 - and that one GoK prevents after 31 seconds on my machine, slightly out of Difficult think time, so it would require competition mode.

Was Scurious on Ply 4 or 5? I wonder how Scurious think time was, I know it is fast, but so is GoK. Do you still have the GoK logfile? It seems GoK was limited to below ply 8 due to low system performance, and that is not really the expected operations mode for GoK Difficult on TW - it will act more like Blitz 1 or 2.

Scurious was on 5 Ply, I ran GoK Difficult on TW + Turbo mode.
Also I dont have the LogFile sadly.

Thanks!

In the meantime, GoK (white) drew this game against Stockfish 16 level 7. GoK up 3 to 5, but the winning line was long and required material sacrifice. At one point GoK might have found it by accident to prevent threefold-repetition, maybe in a day or two :-) OK 50-moves-rule would have come first.

https://lichess.org/0JnI4fO6#165

Drawing a game at 95% accuracy, with only 2 inaccuracies out of 90 moves, pains me a bit.

HasiLover_Test wrote:

could someone explain me Tapered Eval? im interested in adding it to Scurious 2.1

ArnoHu wrote:

HasiLover_Test wrote:

could someone explain me Tapered Eval? im interested in adding it to Scurious 2.1

It is interpolating evaluation between midgame and endgame evaluation, by weight of current material. I have seen some implementations, they simply invoke evaluation twice, once for midgame, once for endgame, and interpolate between the two results.

HasiLover_Test wrote:

ArnoHu wrote:

HasiLover_Test wrote:

could someone explain me Tapered Eval? im interested in adding it to Scurious 2.1

It is interpolating evaluation between midgame and endgame evaluation, by weight of current material. I have seen some implementations, they simply invoke evaluation twice, once for midgame, once for endgame, and interpolate between the two results.

Thanks!

HasiLover_Test wrote:

ArnoHu wrote:

HasiLover_Test wrote:

ArnoHu wrote:

Is it just me, or did you also lose that lichess.org analysis board feature that would show you the next best move via a blue arrow once you activate local evaluation? I now have to hover over a variation in the PGN moves panel, and that only appears during live analytics (https://lichess.org/analysis/), not on a stored game.

It works on my PC

Are you using Chrome?

Yes, I am a Chrome User.

birdracerthree wrote:

Here is a study with some puzzles if you are interested - https://lichess.org/study/FYcWqN5E
More info (expected depth, etc.) will be posted later
Edit : Expected Depth added

ArnoHu wrote:

birdracerthree wrote:

Here is a study with some puzzles if you are interested - https://lichess.org/study/FYcWqN5E
More info (expected depth, etc.) will be posted later
Edit : Expected Depth added

Thanks, that's very helpful!

S_P_A_R_T wrote:

White Dove v7.01 has been released!

It's just a slight endgame improvement, but this hopefully helps WD in tricky positions!

birdracerthree wrote:

S_P_A_R_T wrote:

White Dove v7.01 has been released!

It's just a slight endgame improvement, but this hopefully helps WD in tricky positions!

What did you change?