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2 positions from
Paul Lamford and Will Richardson
Brains and Drains
versus
James Ferguson and Martine Giles
A gin game rules oft sneers jim
by Paul Lamford
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"Brains and Drains outrolled their opponents in round
1, and the most
interesting problems occurred when they were leading 6-0
Crawford:
a) Running or staying back is always an interesting
problem. In the following
position James and Martine had a 6-2 to play and correctly
ran with 23/15.
Dod would have stayed back when given it as a problem, so
Brownie points go to J&
M. If missed, J&M have an equal race, and if hit, they
get returns against
the blot on the ace-point.
| # |
Ply |
Move |
Equity |
| |
1 |
R |
23/15 |
0.203 |
| |
2 |
R |
8/2
6/4 |
0.185
(-0.018) |
| |
3 |
R |
13/7
6/4 |
0.165
(-0.038) |
| |
4 |
3 |
13/5 |
0.148
(-0.055) |
| |
5 |
3 |
23/21
8/2 |
0.141
(-0.062) |
b) Clearing the bar or not is another problem we often
face. Here J&M decided
that now was the time to clear, as if Green escapes, White
is well-placed to
attack on the ace-point. For money, it is too close to
call, although 17-8 is
still narrowly correct, but trailing 6-0 Crawford in a
match, gammons do not
count, making the plan of attacking on the ace-point less
attractive.
The other big downside of clearing the bar was shown by
Green's reply of
boxes ... which helped Brains and Drains to a lucky clean
sweep."
| # |
Ply |
Move |
Equity |
| |
1 |
3 |
17/8 |
0.885 |
| |
2 |
3 |
17/12
6/2 |
0.873
(-0.011) |
| |
3 |
3 |
7/2
7/3 |
0.846
(-0.038) |
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4 |
2 |
17/13
7/2 |
0.706
(-0.178) |
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5 |
2 |
17/12
7/3 |
0.703
(-0.182) |
This file has been
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Output date: 11:15:28, 10/08/2003(Export v2.10)
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