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42 to play.
is alicalkap score: 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)
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I lead 6 away 7 away and have 42 to play. This time against manna90254
is manna90254 score: 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.
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Here is another play from the same game. 64 to play.
is manna90254 score: 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.
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Here's another "next" from the same game that I got way wrong. 64 to play.
is manna90254 score: 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!!
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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