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forgetting to double

So sometimes..we get mesmerized by the backgammon drama that we completely forget we are holding the cube and doubling might be an option :D
Well here is an example of such an event.

I am preparing for the last rites with an ace point anchor, my arch rival and nemisis (GreedyG) a couple rolls away from a doubled gammon or even backgammon to put me out of my misery. (5 pt match, score 0-0) I am playing White.


1.jpg
Bot rolls 55, leaving a single blot. I hit the blot. My chances of losing was 99.2%.


2.jpg
Bot stays on the bar and we arrive to this position where I roll 44 and we are pretty much a coin flip at this point. I am a slight underdog 46% to win. Well that is a long way from 99% to lose just a few rolls earlier.

So I move my 44 roll, amazed that I may actually win this :o , bot rolls 5-1 and here we are at this position.
3.jpg
So at this point.. what am I thinking? yep.. ROLL SMALL NUMBERS YOU S.O.B! SMALL NUMBERS 2-1 3-1

I should have been thinking.. hey, wait a minute.. I am actually the favorite here :D If we count the rolls, the bot is actually missing with 19/36 rolls only 17 rolls get that blot off the board. So yeah.. i SHOULD have redoubled to 4. It was a double blunder (.200+) not to redouble. I rolled, the bot missed and I won that very rare last checker left game. And this one was even more unlikely since the board was not closed off. Could have escaped out with any 6.

Cube analysis
4-ply cubeless equity +0.213 (Money: +0.213)
0.606 0.000 0.000 - 0.394 0.000 0.000
Cubeful equities:
1. Double, take +0.448
2. Double, pass +1.000 ( +0.552)
3. No double +0.213 ( -0.235)
Proper cube action: Redouble, take

And I went on to win the match, even though I played badly (beginner level)
sgf file attached
Attachments
201809151720_tetraHydro_GreedyG.zip
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Re: forgetting to double

:shock:
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Install and play backgammon against the computer!
Detailed how to installation guide with screenshots
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User avatar
admin
Site Admin
Posts: 343
Joined: Sun Oct 24, 2010 8:32 pm
Years playing backgammon: 20+ Learned to play on fibs.com playing bots and review with gnubg analysis FIBS rating 1750-1850
Location: USA

Re: forgetting to double

woo hoo happened again :D Last one was sept 2018 4 years and 6 months ago

Last checker play and forgot to double again but still won the match
This position
Image


Turned into this position where i should have doubled (double/take)
Next was a double pass Image



And I won with the blot still in my home board. GreedyG stayed on the bar for 11 rolls and went from 96% fav to 0%
Image
DOWNLOAD GREEDYGAMMON
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Install and play backgammon against the computer!
Detailed how to installation guide with screenshots
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