Defending your BB in Limit

[uuDevil]

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From the article:

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...when I’m in the big blind, I’m showing an overall loss of less than one big blind with 140 of my 169 hand combinations — meaning that as of now, I do better by calling with those 140 combinations than I would by folding them. To me, this is a pretty strong indicator that all of the people who advocate a loose blind-defending strategy are on the right track.

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This isn't clear to me. Is he referring only to hands when his BB is raised? Otherwise, this doesn't seem like a good argument at all.

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I don't see what is unclear. The topic is defending the bb. Doesn't this imply that someone put in a raise?

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Perhaps it is implied. But I'd prefer he had given more specifics and stated the conditions explicitly. Since Matros has a math background maybe I should just take his claim at face value-- I'd just rather not.