# Fw: Need help explaining a Khorkov misere rule-of-thumb

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### danny purvis

Dec 13, 2008, 3:23:49 AM12/13/08
Three Stooges is right. I now realize that the diagram I was looking at when I wrote this already had a move #26 and also a move #27. So the "try" I gave is likely nonsense. I am too disgusted with myself to reconstruct.

The diagram difficulty should not change the logic of my first three sentences below. But I am not sure I like the wording of the second sentence. Perhaps better would be, "So the mover needs either a total shallow even or a total deep odd."

This conversation made me wonder how everyone responded to Roman's recent article "A New (Old) Theorem." I found it hard to deal with. But late this afternoon I fashioned a zovichian interpretation. 4, 10, ... are perhaps all "even quasitraps." An even quasitrap would be a biosphere that must produce a quasiswitch (or else, even worse, a true switch) in an even number of moves. That hypothesis will be something for me to think about - and probably shoot down - later this morning.

----- Forwarded Message ----
From: danny purvis <wgosa_...@yahoo.com>
Sent: Friday, December 12, 2008 9:30:04 AM
Subject: Re: Need help explaining a Khorkov misere rule-of-thumb

My current Three Stooges count of the given position is 12 cannibals, an even number. So the mover needs a total se/do. By the theory that Y is a de/so, the mover would love to convert Z to a shallow odd. A try would be 15(26@19)24, hoping that the sphere S(11) will prove to be a shallow even.

From: danny purvis <wgosa_...@yahoo.com>
Sent: Friday, December 12, 2008 9:04:13 AM
Subject: Re: Need help explaining a Khorkov misere rule-of-thumb

No, just the opposite.

Now it looks to me like I miscounted cannibals in the original position! I began my analysis in confusion and probably should leave it in the same state.

From: Josh Purinton <josh.p...@gmail.com>
Sent: Friday, December 12, 2008 8:41:18 AM
Subject: Re: Need help explaining a Khorkov misere rule-of-thumb

"do/se/do" indeed -- no one can deny that you are brilliant! Now, what promising moves, specifically, does this information about Z suggest?

On Fri, Dec 12, 2008 at 8:37 AM, danny purvis wrote:
Suppose Y is indeed a de/so (deep even / shallow odd) pseudoswitch. Either immediate option would be bad if Z is a true switch or if Z is an odd quasiswitch. The options of a true switch are either de/do or se/so. The options of an odd quasiswitch are do/so.