***********
42 to play.
is alicalkapscore: 0 pip: 144 | ||||||||||||||||
| ![]() | 7 point match | ||||||||||||||
| pip: 143 score: 0 is Chutzpah | ||||||||||||||||
| XGID=--B-BbCB----cD---bccb--AA-:0:0:1:42:0:0:0:7:10 | ||||||||||||||||
to play 42 | ||||||||||||||||
| 1. | XG Roller++ | 23/21 13/9 | eq: -0.797 | |||
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| 2. | XG Roller++ | 23/21 6/2 | eq: -0.897 (-0.100) | |||
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| 3. | 4-ply | 24/22 13/9 | eq: -0.826 (-0.029) | |||
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eXtreme Gammon Version: 2.02, MET: Kazaross XG2
This really should be a "next" yet I goofed it up.
Before the dice are even rolled I want to advance my back men to make an anchor. Opponent has an advanced anchor and I don't, and opponent has a better prime than I do. 2's and 3's are going to the 21 point and perhaps aces too.
So the 2 is "forced" 23/21.
How about the 4?
6/2 is ridiculous (my play) which leaves 13/9 as the only alternative.
I have some tactics on my side as some 4's are duplicated (42 and 43 and 44 crushes me anyway, and even 45 46 give me a chance to roll a 4 from the bar to anchor)
*************
I lead 6 away 7 away and have 42 to play. This time against manna90254
is manna90254score: 0 pip: 145 | ||||||||||||||||
| ![]() | 7 point match | ||||||||||||||
| pip: 193 score: 1 is Chutzpah | ||||||||||||||||
| XGID=-----aC-D-a-cD--ad-e-B--AA:0:0:1:42:1:0:0:7:10 | ||||||||||||||||
to play 42 | ||||||||||||||||
| 1. | XG Roller++ | Bar/23 13/9 | eq: -0.445 | |||
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| 2. | XG Roller++ | Bar/23 8/4 | eq: -0.451 (-0.006) | |||
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| 3. | XG Roller++ | Bar/21 13/11 | eq: -0.462 (-0.016) | |||
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| 4. | XG Roller++ | Bar/21 8/6 | eq: -0.500 (-0.055) | |||
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| 5. | XG Roller++ | Bar/21 6/4 | eq: -0.511 (-0.066) | |||
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| 6. | XG Roller++ | Bar/21 24/22 | eq: -0.555 (-0.110) | |||
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eXtreme Gammon Version: 2.02, MET: Kazaross XG2
I moved Bar/21, 24/22. I highlight this play because my move is so illogical.I am way behind in the race - under no circumstances should I be moving my backmost checker. This is insanity.
There are several moves that are reasonable. The key once again is don't touch that back man!!
Bar/23 makes the most sense, staying furthest back and covering the most territory should opponenet leave a blot while leaving the most opportunities to form a second anchor. Either 13/9 or 8/4 are logical 4's.
*************
Here is another play from the same game. 64 to play.
is manna90254score: 0 pip: 121 | ||||||||||||||||
| ![]() | 7 point match | ||||||||||||||
| pip: 149 score: 1 is Chutzpah | ||||||||||||||||
| XGID=----BaB-CBAabB-Bbb-bbA-ba-:0:0:1:64:1:0:0:7:10 | ||||||||||||||||
to play 64 | ||||||||||||||||
| 1. | XG Roller+ | 15/11* 11/5* | eq: +0.519 | |||
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| 2. | XG Roller+ | 21/11* | eq: +0.347 (-0.172) | |||
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| 3. | 1-ply | 15/9 15/11* | eq: +0.061 (-0.458) | |||
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eXtreme Gammon Version: 2.02, MET: Kazaross XG2
I hit from the back 21/11* This is the wrong strategy. For one, I am still behind in the race, so disengaging seems to be the wrong idea. Also, tactically this is weakeast as I give my opponent many good rolls. Most 5's and 6's enter and hit at a time when I am outboarded (though he does have the return blot on the ace) while some 5's simply anchor when opponent is happy. So about 1/2 the rolls opponent is happy.On the other hand, hitting two with 15/11*/5* puts tremendous pressure on opponent to roll a 5. So less good rolls and more upside when it works. If opponent doesn't roll a 5 he's basically hosed. And even if does roll a 5, I have that return shot at his blot on the ace, lessening the damage somewhat.
*************
Here's another "next" from the same game that I got way wrong. 64 to play.
is manna90254score: 0 pip: 121 | ||||||||||||||||
| ![]() | 7 point match | ||||||||||||||
| pip: 168 score: 1 is Chutzpah | ||||||||||||||||
| XGID=----BaCABA-bcB-----cbD-bb-:0:0:1:64:1:0:0:7:10 | ||||||||||||||||
to play 64 | ||||||||||||||||
| 1. | XG Roller+ | 13/9 13/7 | eq: -0.392 | |||
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| 2. | XG Roller+ | 9/3 7/3 | eq: -0.508 (-0.116) | |||
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| 3. | 2-ply | 13/7 9/5* | eq: -0.744 (-0.352) | |||
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eXtreme Gammon Version: 2.02, MET: Kazaross XG2
My first instinct was 13/9, 13/7 but in the end I made the point 9/3, 7/3. This is a huge mitake, and shortsighted.
First off, I don't really want the 3 point. The 5 point is a higher priority.
Second, even though I don't particularly want to prime his lone man, I do form a 4 prime with which close to half the numbers fail to escape.
Third, 13/9, 13/7 buys some time. I now have six checkers to play with on my side of the board while I wait for shots.
Fourth, and most important, my opponent lacks a stepping stone on his outer board to bring his men home safely. I will likely get multiple indirect shots and/or some direct shots as well. Again, since he lacks a point in his outer board it will be very difficult to bring these men around. Patience grasshopper, patience!!
is alicalkap

is Chutzpah
Good positions, Bill. The final position is the one I think is the trickiest. Since you're hoping to hit and contain a checker, making a home-board point is not necessarily a crazy idea when Black has a blot lying around. Also, 13/9 13/7 disconnects your army and gives up outfield control. However, I think the main issue is one of timing. 9/3 7/3 works well if you get an immediate shot but don't get one later. But since you're likely to get a shot later, it's better to adopt a strategy of making sure you can build your offensive position smoothly and safely over the next few rolls.
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