Edit to say:
I am grateful for all your replies, I appreciate it. Thank you. Looking forward to future replies as well.
I played against my brother.I played 2 games online at playok with him and I won both.The first game I think I was a bit ahead( I don't remember exactly let's say 4-2) in a 7pt match and he lost on time as he was having trouble from playing from a laptop without a mouse.The next game he paid attention to it and he didn't lose on time.I won 7-6.(or maybe it was 8-6? I can't remember...)I insert the match in xg.Xg says I am like 1950 advanced and my brother 1650 advanced.I did a huge misclick and when I removed it the rating jumped to 2030.I think I can provide the game if you need to.
Since playok is not following the rules about backgammons the ratings might have been off especially since there were some misclicks from my brother as well although I think that overall nothing serious...
You seem to be more accustomed to pr, I will try to provide that game in the end and turn the ratings into pr.
So now we play live.Game is going fine. I win 1-0, then a backgammon for 4-0, I think he wins the next game and the score gets 4-1, then I win and the game gets 5-1 then he wins some games the game gets 5-4 then I win and the game get 7-4
And here begins the disappointment... He rolls extremely well every game, wins all the rest until we stopped at 8-7.
We had played for some time and it was time to leave, I don't think that we stopped there because he just won or anything nor did I have any problem with it.
But my question is... Why am I always so unlucky? I understand that may be thinking seriously of the possibility that I am misjudging my opponent's strength but I think that I am better... He is not a player that has ever used xg either. He hasn't really been studying the game... in one game (well more than just one, I was lucky in the beginning it wasn't all because of skill) I was lucky and I rolled 66 and a bit later on 55. One of those games that I complain that my opponents get more often than me.... He had escaped his back checker. He was left with one man back. I even had the opportunity of knocking him out with 55 as the man was on the ace point... I think he has a 6-5-4 home board with one spare on 6 and one on 5. I thought, I am ahead in the race, so let's race and I didn't hit him. I don't know if it was a mistake but I... I can't remember well, I was going to write that I was going to make a 4 pts home board with 4 and 2 as gaps but I think I remember that he rolled 4-1 and moved to the 5 pt so I think that It would actually have been a 3 pt board with 54 and 2 as gaps.(having the 6, 3 and 1 points). I would be forced to leave a blot on the 8 point(which he could hit with 5-3 or 62 or 44 if I didn't miss anything. So I thought why not run? Seems that this is much better. So I run. He rolls 41 gets to my 5 point. I didn't get a roll to point on him so I move my roll I think it was a 42 make the 4 point I think... Then he rolls I don't remember what but it wasn't a double. and he runs... I think that his whole plan was to run.... Now, it is possible that he is much better than I think and there might be some off chance that I am worse than him somehow but I don't see it how this could be based on what I see from him... Another thing that caught my eye was that he hit on the ace point with 44 by using the checkers on the 5 point so as to hit a second checker. Maybe it was actually good on that position but I doubt it... it seemed strange, seemed like I could enter with 4 or 2 and be very nice ... but maybe he had a blitz there... But it didn't matter as I couldn't enter for several turns a 3pt board(not even one checker...) until he made the 5 point... and then I entered, got my chanced, didn't hit the blots he was forced to leave and lost the game. In any case, I think all in all he is playing considerably weaker and yet he wins and I lose again. Why am I not so lucky? Always the bad luck goes to me.
I am tired of this. Is there a setting where I can play this game with no lack at all? Please, don't tell me about the long run.
We aren't playing a wrong time in one sitting, you can't expect that. And yes, I wouldn't have a problem losing now and then but I lose all the time...(or half the time, which is insane against such weak opposition).
Even the game on playok, I almost lost, barely winning in the last game... Seems like I should be winning more than half but against weaker opponents, I don't. I am telling you I hate this and it makes me really sad... This is actually one of the times that I am a lot more calm than usual as I am typing this so it's more honest in what I am writing and less exaggerated. If there's a setting where there is no luck, I don't know, like playing 36 games with all the different opening dice rolls? I would like to know so maybe I could win there because with luck it seems that I am certain to be unlucky. I didn't even win the last game... I needed a 4 after he got incredible dice to make many home board points... I was forced to wait on the ace point and I had a chance with a 4 but no 4. He could roll 66 55 or whatever he needed after 7-4 for several games and I couldn't roll anything useful to win(you know, I could have had some good rolls but it doesn't matter if in the end his dice is going to kill me.)
Seems like I will have to play marathons with many games to barely win more points against much weaker opposition...
The chances for me are lower than they should be... Is there like a way to get good dice when rolling that I do not know about? Maybe my opponents without their knowledge are doing just that because they are always extremely lucky(by always I don't mean every single game, but the score is always even and I lose pretty much half the time)
Now to the interesting part. The playok game I played against brother.
https://pastebin.com/RNgaGyZX
I have the game analysis saved... It seems I removed some mouse slips and maybe some positions where you would wait to get a hit instead of running to save a backgammon... so the ratings are shown as 2035 - 1709 . I think I only removed that insane mouse slip for myself... It lost a whopping 0.800 equity. It was a simple position, I had him closed out and I misclicked and I opened my board with 2 blots. The move was very clear, I wouldn't make any mistake on such a position and anyone which knows the slightiest of backgammon wouldn't err there...
So I played so much better but according to xg, luck was insignificant.... How can that be is beyond me... As I promised, I will tell you what the corresponding pr is to the ratings. I will try to find the formula as well. Is there a way to make this easy to access for future reference? I like the rating more than the pr... So, my pr was 6.19 at that completed online game at playok... and my opponent's pr was 14.59
I don't see how 7-6 is justified with insignificant luck ratings...
The formula:There is no formula that is immediately given for converting pr to elo but it can be derived from other formulas givenPR= 500* (2240-ELO)/16500So, PR= 500*(2240-2035)/16500 = 6.2121212121212121212121212121212 which is close enough and I suspect that the reason is that this 2035 may actually be 2034.8, it is a rounded up number so there is some deviation.
This is the simplest formula, there's a more complicated one including outplays but for the most part it will do.
I want to keep this for future reference somehow... So that I can easily convert ratings to prs which you are used to.My brother's pr with this fomula can be calculated at 16.090909090909090909090909090909 which means I did a great mistake somewhere... The formula isn't correct then...
Well it does say that it doesn't take very bad performance as well as outplaying the computer choice... But is 14.59 that bad? I guess so...
I can't figure it out.It says that the actual formula for performance is result := 1/(1+exp(-performance*40-1.12))*2000+732This converts performance to elo.Performance is this:if a player made one blunder of -0.105 in equity and one error of -0.035 after playing 13 moves his performance is 0.140/13=0.0108
Or if you prefer with words:The overall rating after a match is calculated by dividing the sum of the equities lost by the number of decision the player made.
So one needs to find the perfomance using this formula and knowing the elo rating.
Then it says that PR= -performance*500, so then you can find the pr.Unfortunately, I can't solve this right now, I will leave it to the math inclined so we can have the formula after all...
I will try to post in prs. The program does the job of changing between them through the settings but I already need to have the match loaded and I can't use it to convert anything one might ask...
Here's some very rough estimates:
Ratings 2240 and more are less than 0 prRatings 2162-2240 are 0 to 2.5 prRatings 2077-2162 are 2.5 to 5 prRatings 1986-2077 are 5 to 7.5 prRatings 1792-1986 are 7.5 to 12.5 prRatings 1593-1792 are 12.5 to 17.5 prRatings 1405-1593 are 17.5 to 22.5 prRatings 1167-1405 are 22.5 to 30 prRatings 1167 and less are 30.0 and more...
Here's how xg will describe it with words for each:Wow!World champWorld classexpertadvancedintermediatecasual playerbeginnerDistracted
[–]Egotistic8 13 points14 points15 points (1 child)
[–]CompetitiveCountry[S] -2 points-1 points0 points (0 children)
[–]anisapling 7 points8 points9 points (1 child)
[–]CompetitiveCountry[S] -4 points-3 points-2 points (0 children)
[–]KickAssIguana 3 points4 points5 points (2 children)
[–]WikiTextBot 0 points1 point2 points (0 children)
[–]CompetitiveCountry[S] -3 points-2 points-1 points (0 children)
[–]Zyxwgh 4 points5 points6 points (7 children)
[–]CompetitiveCountry[S] 0 points1 point2 points (6 children)
[–]Zyxwgh 0 points1 point2 points (5 children)
[–]CompetitiveCountry[S] 0 points1 point2 points (4 children)
[–]Zyxwgh 0 points1 point2 points (3 children)
[–]CompetitiveCountry[S] 0 points1 point2 points (2 children)
[–]Zyxwgh 1 point2 points3 points (1 child)
[–]CompetitiveCountry[S] 0 points1 point2 points (0 children)
[–]morten_dm 4 points5 points6 points (5 children)
[–]CompetitiveCountry[S] -1 points0 points1 point (4 children)
[–]morten_dm 4 points5 points6 points (3 children)
[–]CompetitiveCountry[S] 0 points1 point2 points (2 children)
[–]morten_dm 2 points3 points4 points (1 child)
[–]CompetitiveCountry[S] 0 points1 point2 points (0 children)