It's the first game of the qualifying round at the ACC Open.
You're pone at 75-66* and get dealt 5-5-7-8-Q-Q.
Do you go for it and toss 7-8, or play safe and
toss 8-Q? Or do you do something else? |
hide answers
Dan Barlow:
I go for it. It's possible he'll have a cut for a huge crib if I toss
7-8, but it's certain that I have a cut for a huge hand,
one that could have me dealing on Fourth Street while he is scrambling to
avoid a skunk. If he gets a 24 crib, well, chances are he'd have had
twelve if I'd tossed 8-Q. Either way, I'm still in it. And
hey, it's only the first game!
DeLynn Colvert:
Maybe I'm too aggressive, but I'm going to keep 5-5-Q-Q
and go for one of the sixteen cuts (over
of the deck) that give me a
good run at position on Fourth Street. Dealer is -3, so that gives me some
margin for error in making a dangerous toss.
George Rasmussen:
This pone likes hole 75 with dealer at 66*. Play safe and discard
8-Q, the two cards with the lowest average in the crib.
When playing defensively, make the safest choice. 7-Q has a
higher average to crib and the seven is the key connector among the middle
cards. At this location on board, you cannot afford a large crib. Give the
dealer an average hand and a small crib and you improve your chances of
winning. Only the cut of the 5 (if you retain
5-5-Q-Q) puts you into the critical zone on Fourth Street. It's
also important to remember that dealer's most frequent discard is the
7-8. 6-7, 6-9 and 8-9
are also among the ten most frequent discards to dealer crib. How do those
work with your 7-8?
Michael Schell:
This is a classic bold vs. safe positional discarding choice as pone,
so it's time to do a cost/gain analysis. Most of the time when I do one of
these, it's on Fourth Street. In this case neither player is in direct
range of home, but my opponent is within three counts of the skunk
line. This matters since, being a qualifying round game, I'll get three
points for a skunk compared to two points for a normal win.
When I calculate the gain in keeping 5-5-Q-Q I'm going
to look at how it enhances my chances of getting into position on Fourth
Street. That means getting to 96 points or better. The significance of
reaching 96 is that I'll then be a favorite to win on the front end (i.e.,
with my next three counts). This will give me a good shot at a
skunk provided my opponent's cards falter a little (he starts this deal
right at the skunk positional hole, 25 points back of the skunk line). It
also would make me a favorite to win in the event that dealer's cards get
hot. He starts this deal -4 to the Third Street positional hole, so my
defensive pad is not insurmountable.
If I cut a 5 or Q (a 4 in 46 shot), I'll
get to the Fourth Street positional hole easily. If I cut a 10,
J or K (12 in 46), I'll be five holes
short — close enough to get into position or close to it with a little
pegging. I'll guess that keeping 5-5-Q-Q gives me about a
14% chance of getting into Fourth Street position by the end of the deal.
Now to look at the alternative of keeping 5-5-7-Q. This
gets fourteen points on a 5 cut and twelve on a 6
or Q cut, but neither gets me close enough to 96 to have
significant changes of reaching that hole this hand. So the gain is
entirely on defense. Since dealer is an underdog to get into Fourth Street
position with his three counts, preserving my winning chances on
the back end (i.e., through my opponent's failure to get out in time) has
a great deal of value.
So what is the defensive gain in keeping 5-5-7-Q?
It doesn't peg any safer than 5-5-Q-Q — in fact it's
probably more dangerous, since the ranks are distributed 3/1 instead of
2/2. For example, leading from 5-5-7-Q is a tricky
proposition. If you make the obvious choice of the Q,
you'll be utterly trapped on a 6 reply. The alternative is
to lead the 7, which has seven immediate losers and can
also give up lots of pegs against mid-cards. With 5-5-Q-Q
you can just lead a Q and probably have an easy time of it.
I'm going to guess that 5-5-Q-Q is
¼ point safer as a pegging hand than
5-5-7-Q. Now to the crib. Normally 7-8 gives
up 7.6 points in opponent's crib compared to 8-Q at 4.3
points. But if I toss 7-8 I'm leaving no helper cards
behind in my hand while if I toss 8-Q I'm leaving four
helper cards behind that cannot be cut or tossed by dealer. This makes
8-Q about ¼ point safer
than usual relative to 7-8. This offsets the difference in
pegging risk, so I'll say the net defensive difference between the two
tosses is 7.6 minus 4.3, or 3.3 points.
Keep |
Toss |
|
Average
hand |
|
Opponent's crib: |
Expected
average |
|
Static |
Delta |
Dynamic |
5-5-7-Q |
8-Q |
|
8.78 |
|
4.31 |
-0.38 |
3.93 |
4.85 |
5-5-Q-Q |
7-8 |
|
13.83 |
|
7.63 |
-0.10 |
7.53 |
6.30 |
|
|
Keep |
Toss |
|
Pegging (Schempp): |
|
Pegging (Mueller): |
Net |
(pone/dealer) |
|
Net |
(pone/dealer) |
5-5-7-Q |
8-Q |
|
-2.0 |
(2.2/4.2) |
|
-1.2 |
(1.5/2.7) |
5-5-Q-Q |
7-8 |
|
-1.5 |
(2.0/3.5) |
|
-1.1 |
(1.7/2.8) |
|
How much does it cost me to give dealer an extra 3.3 points? On Fourth
Street my rule of thumb is that each extra point I give up costs 7% off my
back-end chances assuming dealer is starting out close to the positional
hole. On Third Street the game has longer to go, so a one-point variance
has less impact on my winning chances. But then so does the impact of
scoring more points on my own front-end chances. I figure the dropoff is
about the same either way, so I'll still use the 7% per point guideline
for comparison. I do tweak this, though, for dealer being four
holes behind the positional hole, since the positional hole represents a
"sweet spot" where a one-point variance will have the highest impact. I'll
guess that 3.3 points translates into a 20% cost to my back-end chances at
this score.
So the aggressive play adds roughly 14% to my front-end chances, but
subtracts roughly 20% from my back-end chances. If skunks didn't count,
the decision would be clear: toss 8-Q and play defense. But
skunks do count, and my only real chance to get one is to play
aggressively, hope to get into position, and hope that my
opponent's cards falter a bit down the stretch (since at 66* he is already
a slight favorite to reach 91 on his three counts). Because a skunk adds
only one game point of value to my scorecard,
whereas losing the game costs me two game points, the aggressive play must
increase my skunk chances by at least twice as much as it decreases
my overall winning chances to be worthwhile. Tossing 7-8
decreases my winning chances by about 6%, so the question is, do my
chances of winning a skunk go up by 12% or more keeping
5-5-Q-Q? I'm inclined to think they
don't, mainly because by giving my opponent three extra points I'm
effectively moving him from 66* to 69*, from which he needs only 22 points
in three counts to cross the line. Throw in the fact that one of my
favorable cuts is a 5,
which usually works out well for dealer, and I'd say that getting a skunk
is a most unlikely scenario.
Bottom line: if I was desperate for a
skunk, I'd keep 5-5-Q-Q
without thinking about it too much. But since it's the first game of the
tournament, a little more discretion is called for, and that means tossing
the safe 8-Q.
Phyllis Schmidt:
7-8. I go for it, hoping to peg a few and get into
position for the next deal.
Peter Setian:
I would make the conservative discard of 8-Q. Both your
and the dealer's position on the board dictate this. Unless you match the
cut for a twenty-point hand, a routine cut for sixteen points will still
leave you well short of a good dealing position next hand, and the
dealer's current position is likely to leave him or her short of a
"receiving" position next hand. If either player had six more points, I'd
"go for it" and toss 7-8.
HALSCRIB:
7-8 is certainly a lot more dangerous in opponent's crib
than 8-Q, but the amount of offensive equity you give away
by making the safe toss is enormous:
Keep |
Toss |
|
Offensive
value |
Average
hand |
Opponent's
crib |
Expected
average |
Average
pegging:
Net (Pone/Dealer) |
5-5-7-Q |
8-Q |
|
6.58 |
8.78 |
3.72 |
5.06 |
-1.17 (1.52/2.70) |
5-5-Q-Q |
7-8 |
|
8.30 |
13.83 |
7.25 |
6.58 |
-1.09 (1.72/2.80) |
The safe toss costs you 5
points of offense and saves only 3
points on defense. I don't see that this board position dictates swinging
the balance that much toward defense, especially when you add in the skunk
potential if you keep the points and get a favorable cut. I'm keeping
5-5-Q-Q.
Panelists
Dan Barlow won the 1980 National Open Cribbage
Tournament, and made the 1985 All American Cribbage Team. His cribbage
strategy articles appeared in Cribbage World for many years, and can
be seen on the ACC Web site. He
also provides strategy tips at
MSN Gaming Zone. He has written seven books on cribbage, two of which have been glowingly reviewed in Games Magazine. All, including his latest book Winning Cribbage Tips, are available at
The
Cribbage Bookstore.
DeLynn Colvert (1931–2019) is the highest rated tournament player in the history of organized cribbage. He was a five-time National Champion, author of
Play Winning Cribbage,
longtime editor of the monthly magazine Cribbage World, and the ACC's only
Life Master - Seven Stars. He also directed two annual tournaments in Missoula, MT, served as the ACC's President, and was one of the game's most affable emissaries. It's scarcely an exaggeration to say that Colvert's career defines modern cribbage.
George "Ras" Rasmussen is a Life Master - Two Stars, a four-time All-American, the national Grass Roots Division 1 champion in 2009, a former state champion in Virginia, Montana and Washington, and holds a Gold Award and a President's Award. He also directs the Washington State Championship, held
each year in Centralia, WA. His articles on cribbage are available on the
ACC Web site.
Michael Schell is a pioneer of modern cribbage theory, which synthesizes traditional concepts of expert play with new computer-informed insights and analysis. He has published Cribbage Forum since 2000. Schell holds a Bronze Award, is a Washington State Champion (2001), and was one of the principal architects of ACC Internet Cribbage.
Phyllis Schmidt is a charter member of the ACC, and has been
playing cribbage for about 40 years. She is a Life Master - One Star, a
Senior Judge, a National Champion (1992) and winner of the ACC Tournament of Champions (2005). She attends about 30
tournaments a year.
Peter Setian has played cribbage for over three decades, and has been
a member of the ACC for about 14 years. During that time, he has won seven major tournaments and earned his Life Master rating. He plays in about
12-16 tournaments per year, including the ACC Tournament of Champions and
the annual Grand National.
HALSCRIB is widely regarded as the world's strongest computer
cribbage player. Its opinion was solicited using a special analysis version
of the program. Since HALSCRIB only speaks binary, its thoughts have been
translated into English by Michael Schell and its creator, Hal Mueller, a retired mathematics professor and eight-time ACC tournament winner.
For more information, see the
HALSCRIB home page. |