May 21, 2017 Tournament Results

We had a pretty decent turnout for a warm afternoon. It helps that there was sunshine yesterday as well. There was a certain amount of confusion as to which Lucky Lab was the right one, but eventually 10 people showed up.

We played one bracket, single elimination, and one round robin tournament. It almost sort of worked. I wonder if a double elimination wouldn’t have been better, but what’s done is done. If there had been more people or 2 fewer, I think the bracket would have been a little smoother. But live and learn – best alternative.

Bryan walked away with the win in the main bracket, with newcomer Courtney taking second place. Hopefully we’ll see her and Justin again next time as well – a little bit of beginner’s luck to keep people coming back and all that. In the round robin, Paul and Martin ended up tying with 12 games each, and so split the prize there, minimal though it was.

I ended up playing Gints twice – once in the bracket and once in the round robin. At one point he took a picture of a position to evaluate later, and if he sends that along I will update this post with it. In our first match, he had sent quite a few of my checkers back, and I was starting to give up hope that I would get a return hit. But I had a relatively strong board, and eventually the opportunity did arise. A roll or two later, we got to the following position, and I offered him a double:


I’m showing it here from my side of the board – Gints is red, facing the cube. What’s the play? I’ll tell you it was a good double, and I knew it right away because he had to stop and think for a bit. Evaluation from both GnuBG and XG say it’s a double. I’m up 61 pips in the race, and likely to get a better position with my next roll. But I do have 3 men back, and no outfield coverage. As it happened, Gints took, and that is the correct action – barely (for me). XG says if my checker on 23 was on 24 instead, that this is a no double/take position. In fact, I managed to pull off my 30% gammon chance, which took us from 1-each to me winning the match. But Gints was right to take, and so that’s the important thing.

In my last game with Paul, we got to the following position, with him leading 3 to 2 in our match to 5.


In the game, I redoubled. Risky play, or sensible? Paul took – smart, or overly optimistic?

Now, here the round robin tournament rules come into the decision. Martin had 10 games, Paul and I each had 6. In order to beat Martin, it was necessary both that one of us get to 6 games (most allowed is 1 over the match length), and that Martin win at most 1 in his last match. So, although this is a proper redouble, it would normally be a pass; but Paul took it on the chance that one of us would end the match with 6 games. And so it happened – I couldn’t cover the 4-spot, and was still pulling my back checkers around when Paul came back in, hit me on the way, and went on to recover the game. Meanwhile, Gints was playing spoiler, beating Martin 6-2 in their match – putting Paul and Martin tied. Overall tournament results on player rankings are as follows:

Player Initial Elo Rating Matches Played Matches Won Final Elo Rating
Bryan 1492.7 3 3 1544.62
Mark 1556.2 5 2 1534.45
Paul 1471.7 4 3 1508.49
Julie 1516.5 1 0 1502.82
Courtney 1500.0 3 2 1500.48
Martin 1600.0 5 3 1500.00
Sara 1500.0 1 0 1482.11
Justin 1500.0 1 0 1480.66
Jarom 1488.7 1 0 1471.04
Gints 1500.0 4 1 1469.33

Overall, I believe a good time was had by all. We’ll try another location next month, when we go back to the actual second Sunday of the month on June 10th – maybe somewhere with a good happy hour. See you there!


April 22, 2017 Chouette Results

We had a great turnout for today’s Chouette – 9 people total. Mark F kept order on the “Advanced” board, where 5 brave souls played for $10/point; while I (mostly) played with 3 others on the “Beginner’s” board at $0.50/point. I say “mostly”, because I did get in about 4 games on the “Advanced” board, both before and after the “Beginner’s” board ran. Martin, Mark S, and Bryan were all still going when I left at 6:30, too!

The action was hot on the “Advanced” board, of course, with Martin coming out well ahead but decent showings for a few others as well. Martin and Bryan are both off to Vegas later this week for the US Open, and so we all wish them good luck.

The “Beginner’s” board was far more relaxed – couple of times people took a double that was probably a technical pass in an attempt to get the box. I had a good run as the box at the outset, which left me well up through the later rotation. Michael provided the board for the first bit, then we switched to Julie’s board when he needed to head out. Paul made his return appearance and I can assure you he hasn’t gotten rusty while he was traveling – he walked away with $0.50 in winnings!

Here’s one position we ended up arguing about for a good little while. At the “Beginner’s” table, we had full consultation at all times, including occasionally the box helping the field or vice versa… Anyway, the argument was, do you come out or do you stay on the opponent’s 4 point?



Julie was the captain, and wanted to come out past the bar. Paul and I were not so sure, and thought staying in provided more chance of a hit. Julie went with the escape, and good thing – staying back is a blunder! Black is not in good shape, but has 31% winning chance if he comes out, only 16% chance if he stays back.

Later, in the following position, I offered Julie the cube. Good move? Would you take?


I figured that I needed 5’s to get out, there’s a decent chance that won’t happen, and so this looks like a double/take. Julie disagreed, and dropped. Well, I was off! My winning chances are about 73% according to GnuBG, but my gammon chances are 41%, making this position too good to double! I clearly need to work on my probability estimates. Then again, with the Jacoby rule, it’s a proper double but still a drop. Lucky me, I wasn’t on the receiving side of that cube decision.

We’ll be back at Lucky Lab for a chouette next month, probably earlier in the month, as the second Sunday tournament will be moving to the third Sunday to not conflict with Mother’s Day, and then following that is Memorial Day. So yeah, the schedule will shift a bit. See you then!



April 9 2017 Tournament Results

We had 13 people show for what is (most likely) our last meetup at Circa 33… Because some people have asked, my reasons for making a change are largely due to the original reasons for us having it there:

  1. It’s close to Rob’s house [well, he’s not hosting anymore, so…]
  2. They had an all day happy hour [well, now it starts at 4, so…]

We got a couple of good suggestions for a new location, so I will go on a pub crawl over the next weeks and pick one. If it doesn’t work out, I’m not afraid to move it again!

We experimented with a new format too. The fun thing about experiments is that sometimes they don’t work. It was far from a disaster, but it could have gone better. With 13 people, we had not quite enough people for two 8-person brackets, and so naturally I tried to run three brackets! That was also a function of trying to have both a $5 and a $10 entry. Then the side pool question got confusing for people… Well.

By 3:10, I had 7 people signed up for the $10 bracket, so I got that kicked off. 3 people opted for the $5 bracket. Then newcomer George arrived. I wanted to put him in the $5 bracket, as a newcomer, but he insisted that he wanted to play the $10. So that filled the $10. Turns out, George is a professional poker player and no slouch at backgammon – more on that in a bit.

Mark F and Bryan both arrived before 3:30, and I promised them a second $10 bracket. Here’s where my planning fell apart. A few months back, when I visited the weekly tournament in Vegas, they run it on a strict 8 person bracket, once you’re out you have to buy-in to a new bracket. I was thinking people would do the same, but I wasn’t considering that I was using a double-elimination structure still, which meant that no-one was finishing up to enter the third bracket. So Mark & Bryan ended up just playing heads-up. Sorry guys!

In the $5 bracket, Julie trounced newcomers Bob and Aaron, although knowing Julie, she was very nice about it.

In the $10 bracket, Kevin repeated his undefeated approach from last month.

Now let me whine for a moment. My first game was against Sharon, and it was a good match – lots of ups, lots of downs. I barely squeaked by, then sat down to play Larry. It was a good match again: I won, he won a double, I got through the Crawford game, and then was cruising towards a crushing victory in the double-match game. I had him trapped behind my prime, his board was crashed, put him on the bar, started bearing off – clearly victory was mine. Until I was forced to leave a blot, and Larry hit it. Well, that happens, and I had a huge edge, came in immediately, just needed to get around the board and… Larry rolled double 6’s. So now he was bearing off while I was still getting around the board, but no big deal, I had some big rolls, and soon enough we were sitting with me having 5 checkers to bear off and him having 12. Now, he was on roll, but no big deal, the only way he could win was to roll doubles – 3 times in a row. Which he proceeded to do. 1 in 216 odds, I lost the match!

Well, I went down to the consolation bracket to play George, who told me he plays mainly on Gridgammon, and has spent a decent amount of time playing Victor Ashkenazi. Playing online against giants does tend to hone your skills, and so George took me out too, though I think I gave him a decent run for it.

George ended up winning the consolation bracket, which got him his entry fee back, but not his side pool bet. I had declared that the winner of the side pool got it all, and that ended up being Larry. Talk about a lucky guy! Larry placed second, losing to Kevin in the final, but Kevin had not entered the side pool! So Kevin got the winnings for the tournament, but Larry got about twice that for the second place plus the side pool!

Again, a learning experience for me. With the shorter tournament structure, I think next time we’ll do 8 person, single elimination brackets, and if you want to keep going you can buy into a new bracket – Vegas style.

So next month, aside from the venue and the format, it’ll be about the same. Also, in response to Tim’s lobbying, the tournament will start earlier in the day – noon or 1, I think. But other than that, about the same. See you there!


Player Initial Elo Rating Matches Played Matches Won Final Elo Rating
Kevin 1543.5 3 3 1584.64
Mark 1578.7 3 1 1556.23
Mark F 1529.7 1 1 1542.59
Dick 1541.4 4 2 1534.14
George 1500.0 4 3 1532.47
Tim 1546.3 2 0 1517.23
Julie 1488.4 2 2 1516.49
Larry 1494.1 3 2 1512.44
Bryan 1505.6 1 0 1492.71
Sharon 1511.4 2 0 1487.40
Aaron 1500.0 1 0 1486.25
Bob 1500.0 1 0 1485.68
Emerald 1471.8 3 1 1464.38

March 12, 2017 Tournament Results

I learned two very important lessons today.

  1. If you have 17 people show up for a tournament, there is no reasonable way to get them done in just 3 hours. Break it into a couple of brackets?
  2. When you print out a 17 person bracket, make sure the font on the numbers is large enough to read, or you are going to screw up some of the moves to the consolation bracket!

Let me spell out the impact of the logistical challenges – at one point I put someone into the wrong line, which meant when the next person moved down, there was already a match happening there, which meant that there was a cascade effect. The worst impact of which was that I ended up playing Mark F twice, and got eliminated. Sad!

Nevertheless, I did give him a pretty good run. Here’s a position that came up in our second match, when we were 1 each in the 3 point match.

Here I’m black and Mark is red. I offered the cube. Good move? Take or a drop?

My probability of winning is about 70% according to GnuBG. If it were a 0-0 score, this would be a take. But given that the match results would depend on it, it is a pass. Mark correctly dropped, then gammoned me in the next game. Smart move, eh?

The group was a good mix of new people and returning players, with a couple of folks who hadn’t been around in quite a while – looking at you, Ed. Most people went for the side pools, and so the first place ended up being worth over $100 – $125 I think. Second went home with $60, third got their ante back. Ed took third. Newcomer Kevin and returning player Dick were in the running for 1st/2nd, but Dick made a concession to the logistics of their respective drives and conceded – they’d already played once, which was how Dick had got started in the consolation bracket. ANYWAY, Dick and Tim had a drive back to Astoria, and Kevin and Sharon had a drive back to Coos Bay (!!!!), and it was 7:30 and my wife was texting to ask if I’d died in a car wreck on the way home. So, that was that.

In spite of the anticlimax of the ending, it was a heck of a day of backgammon. Hope you’ll make it back next month, when I promise to do something different to make it run more quicker.

Here’s the ratings going into/out of tonight. See you next month!

Player Initial Elo Rating Matches Played Matches Won Final Elo Rating
Bryan 1486.2 6 4 1505.61
Dick 1500.0 6 5 1541.41
Ed 1500.0 5 3 1518.88
Emerald 1500.0 2 0 1471.76
Jarom 1513.0 2 0 1488.73
Julie 1485.0 4 2 1488.42
Kevin 1500.0 4 4 1543.48
Kirstin 1500.0 3 1 1493.10
Larry 1500.0 3 1 1494.13
Mark 1600.7 3 1 1578.71
Mark F 1500.0 6 4 1529.69
Matt 1500.0 3 1 1493.67
Michael 1500.0 3 1 1532.10
Paul 1500.0 2 0 1471.71
Sharon 1500.0 4 2 1511.45
Tim 1553.2 4 2 1546.33
Trish 1476.6 2 0 1454.43

February 18, 2017 Chouette Results

Turns out, it was zwikelmania on the 18th. As a result, Lucky Lab was very crowded. I showed up a bit before 1:00, and set up next to the front door. Before 1:00, a group of people started playing darts right behind that table. There was a lot of traffic, but not obviously anyone looking for backgammon. After a while, I went and walked through the bigger room, and found Dan, who had been sitting around waiting for someone else to show up too. We moved back to the front table and played a money game for an hour or so, took a break for Dan to deal with a little work, then settled in for a chouette with the arrival of Rob and Martin about 3:00.

Well, I was already way down due to Dan’s excellent dice throwing skills, and the arrival of backup just meant that someone else got to lose with me. Dan held the box for two full cycles at one point, making bank off us. Still, I had fun, and we even had a random stop-by pick up one of the postcards: Mel, who learned to play in Turkey, and who challenged me to a couple of just for fun games.

At one point, playing against Dan, I faced the following decision:

That’s the doubling cube being offered to me. Now here’s where psychology comes into the game. Mathematically, this is a no double and an easy take. But we were in the 5th game or so in a row where Dan had whipped me. 1’s, 2’s, 3’s, and 4’s hit, 5’s and 6’s escape a back checker. And I hadn’t had a good roll, nor Dan a bad one, so far this game. In spite of his odds being only 0.567 (according to gnuBG), I passed.

Let me tell you, failure of confidence can get expensive.

We’ll be back next month – maybe a few more new people will show up to take some of my money off me. Hope to see you there!


February 12, 2017 Tournament Results

There wasn’t any snow or ice to keep us from the bar today! We had 11 people play in the tournament, a pretty decent turnout. An extra special thanks goes out to Demi, who was planning to just hang around while Bryan played, but who let me twist her arm into playing when it turned out that I had filled out the 11 person bracket with only 10 players. I am actually pending final results, because with such a large pool, play ran a little long – so I left the #1/#2 players to duke it out without me.

My best story of the tournament is newcomer Trish, who found out about the existence of the backgammon meetup group only last Wednesday – when I ran into her completely at random with a board on the table in front of her. Backgammon is out there more than you’d think – if you run into someone with a board, tell them about the group! We’re always wanting more players.

There was a good number of side games and conversation going the whole time through, I believe it was about the liveliest meetup in a year. Old-timer Reid was the walk-on beast to beat, although we tried to liquor him up enough to give the rest of us a chance. But the other one to watch was new-comer Tim, whose wife Emily also played. They must have some pretty fierce competitions going at home because they were both forces to be reckoned with. Tim won a couple of games, then dropped to the consolation bracket, only to fight his way back up to the final match. As a result, he definitely won for getting the most backgammon for his money, playing a total of 6 matches! By 6:30, it was down to these two to duke it out. I had promised to be home by 6:30, and so had to bail at that point. A good half-dozen people were still hanging around to share stories and watch the final battle. I will update this post once one of them tells me who won, to indicate the final rankings of everyone.

Thanks again to everyone for the great turnout, and hope to see some of you next week for the Chouette!

Update: Tim came back to win! Well done! Here’s the table of results with a whole lot of new people getting Elo scores…

Player Initial Elo Rating Matches Played Matches Won Final Elo Rating
Mark 1617.3 4 2 1600.73
Tim 1500.0 6 5 1553.18
Reid 1500.0 4 3 1531.87
Spencer 1500.0 4 2 1509.27
David 1500.0 4 2 1500.11
Emily 1500.0 4 2 1486.67
Bryan 1500.0 4 2 1486.16
Todd 1500.0 1 0 1486.14
Julie 1513.8 2 0 1484.99
Trish 1500.0 3 1 1476.62
Demi 1500.0 2 0 1472.29

January 8, 2017 Tournament Results

Well… there wasn’t a tournament. The weather made travel problematic for most people. Didn’t stop a couple of us showing up, though. Jarom and I played a money game for about an hour and then hung it up – one dollar changed hands, but only because we didn’t start keeping track until after the first game. But we’ll be back next month!

January 2017 Portland Backgammon Events

Second Saturday Tournament 3:00-6:00 1/8/2017 at Circa 33

3pm for warm-up games, Tournament Games start at 3:30.

Tournament games are 3-point matches with Crawford rule. The idea is that a short match lets even a beginner occasionally get lucky against a pro, and it also lets us get through the matches fairly quick. We do not use game clocks but quick play is encouraged. Tournament structure can be either a double-elimination bracket or a round-robin, depending on turnout – we try to make it so everyone gets at least two matches. Once you’re out of the running, though, feel free to stick around for more one-off games.

Tournament stakes are optional – those that choose to can ante in. Those that don’t wish to can opt out. If you were “in” and you win, Payday! (actual ante, payout schedule, etc. TBD by Mark or guest host – typically top two or three walk away with something.)

Saturday Chouette 1:00-5:00 1/14 at Lucky Lab on Hawthorne

We’ll have at most 5 players per board. Bring a board or at least your own doubling cube. BE PREPARED TO PAY OUT UP TO 30 TIMES THE POINTS/GAME. We’re a friendly group, but not necessarily friendly enough to take an IOU… 🙂 If you have to cash out early, mid-afternoon settlements are always an option.

The following rules to be in effect:

1. Jacoby rule
2. No consulting before the turn, that is, players other than the captain don’t get any input until after the first double/take/drop decision is over. Redoubles, you can talk about why you’d want to or not. EXCEPTION: to speed up play, players are free to share the pip count at any point.
3. No minority hold-outs (if 3 of the 4 (or 2 of the 3) playing drop a double, the last player has to take the drop as well). EXCEPTION: if there are only two players on the team, one person dropping is not a majority – if the captain drops or gets dropped, the #2 moves up to the captain mid-game.

Past few months, we’ve done this one the first Saturday of the month, but this month that would be two days in a row of backgammon with our second Sunday tournament; probably go back to first Saturday again in February…

December 11, 2016 Tournament Results

On a cool and wet Sunday, 5 of us gathered at Circa 33 to play our last Second Sunday tournament of 2016. Five people being a small-ish turnout, Rob suggested a round robin format.

We had two newcomers – Julie and Ben – who comported themselves quite well. There’s a slightly unusual situation in the results, because in the final round, Rob and Julie called it quits when they were at 2 games apiece – Rob was down for the night and out of the running, and Julie locked in for second place, and it was getting late. So I scored each of them as getting 1/2 a match for that one. Reminder that since Julie and Ben were new, they start at an Elo score of 1500. And our rules are that in a round robin tournament, the winner of a match can walk away with up to 4 points, for instance if they win a gammon in the final game. Results were as follows:

Round 1 Round 2 Round 3 Round 4 Round 5 Total
Mark 2 4 4 4 14
Rob 0 0 0 2 2
Paul 3 0 0 2 5
Julie 3 3 3 2 11
Ben 0 4 3 0 7
Player Initial Elo Rating Matches Played Matches Won Final Elo Rating
Mark 1608.4 4 3 1617.33
Julie 1500.0 4 3.5 1513.78
Ben 1500.0 4 2 1501.66
Rob 1501.3 4 0.5 1465.42
Paul 1460.8 4 1 1441.79

I took a couple of positions in my match with Paul because I wanted to check them against the computer. Both were doubling decisions, positions where I in fact did offer Paul the cubes. In the images below, I’m black. First one was in our first game, I had him on the bar and felt like this was a little aggressive. Would you offer the cube? If you were red and offered the cube, would you take?

GnuBG says this is a good double, and a pass for red. Paul did in fact pass.

Second position was similar, in that Paul was on the bar again. Keep in mind that this time, he’s down a game.

This one also felt aggressive, and in fact it is too early to double. Paul properly took, and redoubled me a few moves later – which is proper. Down 1-0 in a match to 3, if you own the cube it does you little good to hold it. However wise Paul was in his handling of the cube, though, I did manage to hold on to win the game.

We’ll be back for another on January 8th – hope to see you there.


December 3rd 2016 Chouette Results

We had five people turn out – same crew as last month – and broadly similar results. We really need some reinforcements to show up to keep Mark F. from walking away with the match every time! Someone cart Martin back in…

Play started a little late, using Paul’s board, Mark F’s precision dice, and a motley assortment of doubling cubes. We took a table just by the door, where the noise level was lower and the lighting was better – and the door for smokers as close as possible. Play was more or less even for a few games, until Mark F took the box for the first time and held it for 3 games. From there, he never got close to break-even again, although a few others did. Me, I was sinking like a stone.

There were a number of interesting positions that came up, and pictures were taken for later reference. Mark F said that unfortunately the more interesting position he photographed didn’t turn out, but a position where he was offered the cube did – here it is:


Here Mark F was white. If this looks like a massive drop – you are correct. However, because we were playing with the Jacoby rule, there’s no gammon chance unless the cube is offered. Thus, it is only a minor error to not turn the cube here.

I realized after I got home that I should have taken some pictures myself to include in this post. But – there was one position of note that I remember all too well. Here it is:

In this one, Mark F is the box, in red. Paul was captain, with Nick and I the field. Rob had cashed out earlier and missed this fun. Anyway: Paul had kept Mark trapped on the one point during bear-off, and we were heading for not just a gammon but a likely backgammon! With five chips on the two-point left to bear off, Paul rolled doubles, leaving a blot on the two-point! Which, naturally, Mark hit. He proceeded to keep us on the bar and/or hit us until he was well into his own bear off. And when we got to the position above, he did us the favor of returning the cubes.

Now, I’m putting this back together from memory – it’s possible there were actually two chips on his one point and one on his two point instead. But the dynamics are the same. Question: is this a take?

1 time in 6 he gets doubles and bears off. But 5 times in 6, he doesn’t, and the field has a chance to roll. To bear off one chip from the 9 point, there are 12 rolls that make it: double 3’s or better, 6-3, 6-4, 6-5, and 5-4. So the field’s odds of winning are 5/6 * 1/3 = 5/18: 27.8%. This is a clear take.

Nonetheless, Paul and Nick said no. I took, Mark F. did not roll doubles, and I got to make the final roll. 27.8% skyrocketed to only 33.3%, so sadly not a redouble opportunity. I shook the cup vigorously, and produced a 5-3. So close. Well, even when it’s the right decision, it doesn’t always work out.

Next month’s chouette will not be the first Saturday, because first Saturday and second Sunday are the same weekend. So look for us the third Saturday of January…