Yes I think it’s especially useful to have such a variety of settings available on OGS. I’ve done similar with Fischer for example, and previously some blitz settings in the past. I think some tournaments and congresses for example have lightning tournaments with absolute settings (which probably aren’t EGF rated of course) which could also be a reason to play 10-15min absolute to practice for example.
I’m in between the two points myself, of (1) just check the settings and don’t accept if you don’t like it, and (2) add a warning that this is an unusual setting.
Here’s the thing, I don’t exactly know how OGS determines Canadian Blitz. Let’s assume it’s the formula I found before in the GitHub:
t = time_control.main_time / 90 + time_control.period_time / time_control.stones_per_period;
computeAverageMoveTime function https://github.com/online-go/goban/blob/3897a698b130c9c6c21f1c01eb5ae0238728ffe2/src/GoUtil.ts#L217
Firstly here’s the maximum and minimum settings I can see when creating Blitz Canadian custom game:
- min = 0s
- max = 5mins = 300s
Time per period
Stones per period
- min = 1 stone
- max = 50 stones !!
I don’t know why these are the limitations on Blitz settings in custom games, but they are what they are.
Lets compute some of the borderline examples then of whether the site would class games as Blitz live, assuming the above formula. It’s considered Blitz as far as I know if t<10s, with a strict less than symbol.
I’ll simplify the formula to
t=m/90+p/s < 10s
|Main Time (m)
||Time Per Period (p)
||Number of Stones (s)
||4 is Live 5 is Blitz
||9.33…s or 10.833s
||Max main and Time per period
||3 is Live 4 is Blitz
||10.0s or 7.5s
||Min main and Max Time per period
||Min main and Time per period
||min Time per period
You can see from the first table entry that if you have to play 5 or more stones that it will always be considered Blitz since we’ve maxed out the main time and time per period.
Is there any other useful borderline cases to consider?
Should there just be a warning if you have to place 5 or more stones in general? That doesn’t make sense, I don’t know why I thought that
If anyone wants to make some unranked games to test these settings please feel free
Aside: It should be possible to create a Blitz game even choosing the Live dropdown in custom game I think, since one can choose 0 main time, and 20s per period, but any number of stones up to 50 apparently? Maybe it will give an error and won’t allow it. Anyone want to try it?
I’ll make another post in a bit, about how to make Blitz games when you choose the Live time settings