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BGonline.org Forums
Sax, Russell, Simborg/Chouette Analysis/YouTube
Posted By: Stick In Response To: Sax, Russell, Simborg/Chouette Analysis/YouTube (Phil Simborg)
Date: Monday, 18 May 2015, at 7:22 a.m.
Good video. A couple things I'd like to point out. Joe's analysis and explanation of market losers (and anti jokers) in problem #1 is wrong. (and later in the video it's continually misused) Phil tries to correct this briefly and I wanted to make sure nobody got confused or the wrong idea from watching the video.
Drop the 'I'm doubling because of the Jacoby rule' from your vocabulary. A centered cube is a centered cube. There are rare situations where you would double because of the Jacoby rule but I hear this offered up as a reason for doubling so often and it's simply not the case. It's similar to someone telling me they'd make Play A because of the score when in reality Play A is right at any score. The right play is by far just the right play regardless of the score.
In problem #1 for example (XGID=--aBB-CaB---cC-B--ac-Abbb-:0:0:1:00:0:0:0:15:10) it is pushed that Jacoby is the main component for doubling. The easy solution is to imagine a match to 11 with a centered cube. Don't you still clearly double? Of course! Jacoby out the window. I can't believe #1 was passed by everyone. I think the common mistake is people treating the position as if they're already on the bar. Sure, you will be, but you aren't. This also underlines I think how live play can differ from home play. With the pip count staring you in the face in this position it's impossible to pass.
I'm commenting as I watch the video and in #3 again we hear the 'must double because of Jacoby' nonsense. The cube is a bare cube for money according to the rollout and will be the same if you put it in at a match score.
When you are looking at a position as they do with 13A, the cube v. the backgame, what you shouldn't do is what they're doing. They go through and say "Hey, what if we roll a 42 or a 53 and how big of market loss is that?" Then they set up said number and hit the cube button. We're just going to skip over the opponent even having a turn like that doesn't matter? It might not matter much in this particular position but this a very common bad habit I see. In other positions 8 pips to your opponent may matter. In their example for example [43] is an amazing roll that is going to lose your market regardless of what the opponent rolls. However, if you give the opponent no roll at all the position is worthy according to XGR++ +1.255. If you give the opponent a [61] to play, he does get a turn, then it's a pass worth +1.69 and if you give the opponent a good roll like [33] it is only worth +1.094. It's lazy not to assume the opponent gets a roll and will supply you with inaccurate information.
Btw, as I told you, I am writing as I listen. Thank you to Steve Sax for pointing out everything I said in the previous paragraph! I still think it's worth highlighting so I left the paragraph.
Stick
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