For all that Magriel has contributed, I'm pretty convinced (and I think it's been said by others) that his UTG rule -- Don't expose a blot in your opponent's
inner board to three active builders -- should be rejected.
But what is the reason(s) for this?
Is it 1) 3 is not a high enough threshold -- it should be 4 or 5.
2) If your opponent is preparing to make an inner-board point, it often pays off when you do put your blot there, so that you can fight for it.
I think 2) is a stronger consideration than 1) but I do sometimes think
a bit Magrielishly when a candidate play would be subjecting myself
to 4 active builders instead of 3.
Any (other) opinions?
his UTG rule -- Don't expose a blot in your opponent's inner board to
three active builders -- should be rejected
3 is not a high enough threshold -- it should be 4 or 5.
3 is not a high enough threshold -- it should be 4 or 5.
4 I use to call coming "Under The Machine Gun". This is a far more
serious condition, I agree.
There are still plenty of situations where (for example) splitting
to the opponent's bar point is perfectly fine even when there are
four separate numbers that hit. Below is a basic example where there
are even 10 checkers in the zone.
Thanks. 32D-62S is indeed correct. So maybe a further qualification is
called for, because getting pointed on head on the bar point is less
terrible than getting pointed on head in the opponent's home board.
checked the opening book for these situations:
- 10 checkers in the zone require a "D" opening.
- "Under The Machine Gun" in opponent's home requires a "large enough"
"S" reply.
There is no such situation without equity loss.
the under-the-gun rule takes into account only the opponent's
attacking potential, and not the opponent's priming potential, and
most splitting decisions come down to an assessment of priming versus attacking
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