Grant's Puzzles - Backgammon Position of the Week

 How should White play 31 here: If you can hit one of your opponent’s blots, you should always consider it. It may be wrong, but you should always consider. Consider 24/23* 7/4: Black will hit you with 63, 62, 61, 52, 22, 21, 32, 43, 42, 33 and 11. That is 20 rolls or 56% of the time. Consider hitting and making your 21 point anchor with 24/23* 24/21: Now Black will hit you from the bar with any 4, as well as 31, 22 and 11. That is only 15 rolls, but Black will be on your 4 point threatening to anchor there. 15 rolls are a lot of rolls, is there another option? Both moves above do not really put Black under a lot of pressure. Consider not hitting at all with 8/4: Now you are threatening to make a 5 prime, which should scare Black. Black would like to split with a 2, but 2s are duplicated to split and attack on Black’s 4 point. Black’s 4s are duplicated to attack on Black’s 4 point and to cover the blot on the 2 point. Even if Black makes the 4 point with 42, any 2 from you from...

 How should White play 52 here: It is easy to play safe without leaving a shot and take two checkers off with 5/off 2/off: This allows Black to anchor and cause you problems in the future. Also, if you roll either 65 or 54 next roll, you will leave a direct shot. Just looking at the resulting position, you only have spares on your 3 point and all your other points are stripped. This should look ugly and dangerous to you. Because Black only has a 3 point board and a blot on their outfield, you can make a more aggressive play. Consider 5/off 3/1*: This stops Black from anchoring and now 65 and 54 are great next rolls for you, if Black does not hit you from the bar. Black will hit you with 11 rolls, and you still leave Black shots from the bar if you roll 66. This is the roll that wins the most Gammons, but it does not win the most games. You do not mind leaving 11 rolls for Black from the bar, but you would like to be completely safe if Black misses you. Consider 6/1* 3/1: This...

 How should White play 65 here: Whatever you do, you must leave at least one blot. You first consider the non-hitting play of 16/10 13/8: When you count shots, you see that Black will hit you with any 5 as well as 41, 32, 62, 63 and 33. That is 20 rolls or 56% of the time. If you are missed by Black, then you will have to tidy up your blot, but you may not be able to. You now start to consider the moves that hit one of Black’s blots. Consider 16/10 6/1*: You will be hit with any 1 as well as 55, 54, 53, 52 and 64. This is also 20 rolls or 56% of the time, but now you will have 2 blots to tidy up next roll. Consider 13/2*: You will be hit with any 2 as well as 51, 41, 31, 21 and 11. Again this is 20 rolls or 56% of the time. Even if you are missed, you may not be able to cover the blot on your 2 point. So far you have discovered that whatever you do, you are going to leave 20 shots and you will have difficulty making your blot or blots safe. Consider 8/2* 6/1*: Again, you ...

How should White play 42 here: My favourite form of backgammon is Speed Gammon, and I really look forward to when there will be an 11 point Speed Gammon event at a tournament that I attend. One of the nice things about Speed Gammon, is that good players do not have the time to do match equity calculations and the time does not drag. But one of the dangers of Speed Gammon is that it is too easy to make the move that looks right and not think about your move. Consider 8/4* 6/4: This is the sort of play that players make far too quickly when they play Speed Gammon or sometimes even normal backgammon. Black will hit you from the bar with 65, 63, 62, 61, 54, 43, 42, 41, 55, 33, 22 or 11. That is 20 rolls or 56% of the time. Note that an entering 52 allows Black to enter and make their 11 point. I have also learned that I do not like to give my opponent a good 6 from the bar. Now consider the double hitting play of 6/2* 18/14*: Now you will be hit with any 4, of which there are 1...

 How should White play 51 here: Your checker on your 21 point, is on the next point Black would like to make. Some players underestimate the value of making your inner board points in order. Making your points in order gives you both priming and blitzing potential, with the ability to play either depending on how the game continues. Therefore, you really need to move 21/16 with the 5 and then decide how to play the 1. Consider 21/15: This escapes the checker on your 21 point as far as it can go and minimises Black’s shots. But what do you do for an encore? You have not improved your board, so if you are lucky, you may be able to use the checker on your 15 point to make another point in your outer board. That would be nice but not really menacing. Consider 21/16 24/23: This leaves more shots, but it does introduce another idea: duplicating Black’s hitting 4s. This also gives you good 5s and 6s, so it has diversified your good rolls if missed, but it has not really improved you...

 How should White play 63 here: There are many rules of thumb, sayings or Proverbs in backgammon. They can be extremely useful, but you must be aware of their limitations. Consider making another inner board point with 8/2* 5/2: “Attack one checker back, prime two or more” I have heard the saying many times, and this would indicate that you should make this move. You also have 11 checkers in the attack zone, which seems to indicate that this is the correct move. But if you look at what is likely to happen, you will be hit back immediately with 53 and 44. Black will partially escape with 64, 63 and 53. Black also has some very good entering rolls like 41, 31, 11 and 33. If Black makes their 7 point with 41, 31 or 11, then it could be very awkward for you to escape your 2 back checkers. The point is here that you have 2 back checkers but Black only has 1 back checker. You are behind in the race, so that would indicate that your best game plan should be priming, so you consider ...

 How should White play 54 here: You notice that Black needs 4s and 2s to cover the blot on their 4 point, so you duplicate their 2s and make a point by playing 9/4 8/4: I am a big fan of duplication, especially when I must make a bad move but sometimes it is not the most key factor. Here you do not want Black to make their 18 point as it will exert pressure on your 13 point until you clear it. Black will make their 18 point with any 5 as well as by rolling 41 or 32 – that is 15 rolls or 42% of the time. You start looking at the alternatives, and decide to try 13/9 6/1 which preserves your 11 pip lead: Although this gives you a flexible position to start making points next roll, it also leaves 15 rolls or 42% of the time that Black will be able to anchor on their 18 point. You need to disrupt their ability to anchor on the 18 point or at least limit the number of rolls they can anchor with. Consider 13/8 6/2*: Now Black can only make the 18 point with 61, 52 or 43 – 6 rolls or...

 How should White play 21 here: It is good to make points in your outfield so you consider 13/10: Although this move tidies up a blot, it fails to do anything about Black’s threat on their side of the board. In his book “Backgammon Opening Concepts”, Michy said that attacking with 10 checkers in the zone is strong, but attacking with 8 checkers in the zone is weak. Nine checkers in the zone falls somewhere in the middle, but I believe that when your opponent has 9 checkers in the zone it is good to anchor up. Here you need to anchor up 24/22, and playing 13/10 ignores the need to anchor. Consider 24/22 10/9: Moving 10/9 means that Black no longer hits you with as many rolls. Although it is nice to be hit with fewer rolls, this does nothing about increasing your advantage, namely building a stronger board. Consider the correct 24/22 6/5: If you are hit, you will have an anchor and return shots from the bar. If you are missed, then you will have your 5 point slotted and yo...