• 2017 - Position 224


    Money Play. How should Red play 43?

    Banana split time! Given this as a problem most people will find 9/5, 4/1* - White cannot be allowed his full roll.

    The question is would you find the play over board or would you play the prosaic 9/6, 9/5?


    1 comment

  • 2017 - Position 223


    Money Play. How should Red play 41?

    I found this one very instructive. 13/9*, 7/6, 13/9*/8 and 7/3*/2 all win the same percentage of games within a few thousandths of equity points.

    The difference comes in the percentage of gammons won. Hitting on the 9-pt gains approximately 5% more gammons – there is no discernible difference between the two hitting plays.

    It is therefore worth the risk of White establishing a 3-5 back game to gain those extra gammons – something that may not be intuitively obvious when you first study the position.



  • 2017 - Position 222


    Money Play. Should Red double? If doubled, should White take?

    This one surprised me at first sight. I didn’t double and got flagged by XG in post-game analysis.

    In fact, this is just a double but a very easy take. The reason it is a double is the high percentage of gammons won by Red – 45% of his wins are gammons! That makes this position volatile enough to warrant a double.

    I must admit that in a chouette if my captain didn’t want to double I wouldn’t be arguing too hard for him to change his mind. However, this has made me reassess positions of this type - a useful reference for the future.



  • This Year's Worst Roll

    One of the things we learn early on in our backgammon education is not to put checkers out of play. Not only does this mean you are fighting a war with fewer soldiers than the opposing army but dead checkers reduce overall flexibility and lead to forced moves which is something you want to avoid if at all possible.

    The other situation that creates forced moves is in the ending when you are hit after bearing off some of your checkers. Normally there is nothing you can do about this and you end up making a series of forced moves and you just have to hope for the best, as the dice will very likely dictate the outcome.

    Such a scenario was recently reported by Michihito Kageyama (Michy), one of the world’s top players. Leading 2-0 to 9 in match he had a couple of checkers hit but thought he had escaped the worst when this position was reached with Michy as black. That was before he threw 43 - definitely a contender for the worst roll of the year! The move is forced, 7/3*, 4/1*. This results in White having four checkers on the bar.

    This is where we leave the luck of the dice and skill takes centre stage. Could it possibly be right for White to redouble with four checkers on the bar? That would certainly be remarkable. Such positions are very rare and neither player will have many such positions in their reference library to aid them with the analysis.

    I think most players know that a triple shot is not normally sufficient reason to redouble in a back game when the opponent has already taken off nine checkers. However, here Black also has a checker stuck on White’s 2-pt. That could be useful for Black to make an anchor but it could also add to the number of checkers eventually closed out.

    For money with a fully active cube a redouble by White would be grossly premature. He does better to hold the cube for now and hope to use the cube efficiently later. The match score changes things considerably. When trailing you can be much more aggressive with the cube and note also that Black can’t use all eight points that he would win if he won a gammon with the cube on 4.

    A long rollout from XG shows this as no redouble but it is very close. That is the theoretical answer. In practice, this is a mandatory redouble as I think you will get a fair percentage of passes. In the match Michy’s opponent redouble in a nanosecond after Michys’s 43.

    Michy is too good a player to pass and he took. Unfortunately, I don’t know the outcome of the game so perhaps you would like to roll it out a few times to get a feel for the position?



  • 2017 - Position 221


    Money Play. Should Red double? If doubled, should White take?

    A very clear double given the potential 27 market losing rolls. If Red misses White wins the game with an immediate redouble as he is not too good to double.

    It might look as if White should pass the double because of the gammon threat but Red has a lot of work to do to win even after a hit. White wins 7% of the games where he gets hit.

    Red doesn’t win enough gammons of his own (only 10%) to compensate for those losses so big double, very easy take.



Photo crop (passport)

Web feed

Welcome to my blog of interesting backgammon positions.

These will be posted more or less daily and also tweeted. As I add a new position I will give a commentary for the previous one.

Follow me

Please leave your comments.

Readers are invited to send in their own positions for possible inclusion in Position of the Day to Chris.

You are viewing the text version of this site.

To view the full version please install the Adobe Flash Player and ensure your web browser has JavaScript enabled.

Need help? check the requirements page.

Get Flash Player