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SzG wrote:

Sven Schüle wrote:

SzG wrote:Thanks Sven.

I have a problem, though. Maybe I'm doing something wrong but I have had 75 time forfeits by Jumbo out of 139 games. WinBoard 4.0.8b used under 64-bit Win10.

It may very well be the well-known problem of the engine not counting the moves fed by an external book.

Hi Gabor,

I guess you did not use WinBoard 4.0.8b but a more recent version ...

Moves fed by an external book should usually not cause a problem, Jumbo should handle that correctly. It may be a problem of the time management code, though. Which TC did you use, and do you have a debug log?

Hi Sven,

It was a typo, I use 4.8.0b.

I use 40 moves in 1 minutes and 50 seconds. No debug yet but I'll switch it on for a couple of games.

SzG wrote:

Guenther wrote:
Is that mixed time control really supported by xboard programs?

Although I have seen exceptions, in general: yes.

ZirconiumX wrote:

SzG wrote:

Guenther wrote:
Is that mixed time control really supported by xboard programs?

Although I have seen exceptions, in general: yes.

The XBoard protocol allows a level command to be in minutes:seconds form, so a 40/1m50s would be a "level 40 1:50 0" string. UCI handles this by using milliseconds as its native time management granularity.

Guenther wrote:

ZirconiumX wrote:

SzG wrote:

Guenther wrote:
Is that mixed time control really supported by xboard programs?

Although I have seen exceptions, in general: yes.

The XBoard protocol allows a level command to be in minutes:seconds form, so a 40/1m50s would be a "level 40 1:50 0" string. UCI handles this by using milliseconds as its native time management granularity.

I guess we have a missunderstanding. I thought Gabor means 40/1m +50s inc.

ZirconiumX wrote:

Guenther wrote:

ZirconiumX wrote:

SzG wrote:

Guenther wrote:
Is that mixed time control really supported by xboard programs?

Although I have seen exceptions, in general: yes.

The XBoard protocol allows a level command to be in minutes:seconds form, so a 40/1m50s would be a "level 40 1:50 0" string. UCI handles this by using milliseconds as its native time management granularity.

I guess we have a missunderstanding. I thought Gabor means 40/1m +50s inc.

Actually, XBoard protocol *also* supports that. Increment is what the third field in "level" is for. So 40 moves in 1 minute plus 50 seconds increment per move would be "level 40 1 50".

ZirconiumX wrote:But I don't see why you'd ever want to do that.

SzG wrote:I have sent you a winboard debug.

lauriet wrote:Did you ever compare bitboards verses mailbox in Jumbo ?
What was the verdict ?

Sven Schüle wrote:

lauriet wrote:Did you ever compare bitboards verses mailbox in Jumbo ?
What was the verdict ?

No, I didn't. Version 0.4.0 as well as my current development version are still mailbox. Switching to bitboards is still on my todo list, and it will take quite a while until I can start, maybe some months.

Rebel wrote:

Sven Schüle wrote:

lauriet wrote:Did you ever compare bitboards verses mailbox in Jumbo ?
What was the verdict ?

No, I didn't. Version 0.4.0 as well as my current development version are still mailbox. Switching to bitboards is still on my todo list, and it will take quite a while until I can start, maybe some months.

Or in 2022