September 12, 2017

*** This hand was suggested by ras2829
0-0*  ?
66%
21%
6%
4%
1%
Total votes: 165
james500
3923 votes

Joined: June 2013

 
 
 
Tuesday 3:22 AM
4-4-5-5 improves with most cuts: A,2,3,4,5,6,7 + X (38/46 = 82%). We know 10-K is a good discard to make to our opponent, and with the negative delta effect of 2 fives being out of circulation, it becomes even more effective here.

That said, 5-5-10-K is worth ten points and I don't have the stomach to break it up at this stage of the game, as I want every point I can muster.

Had I kept 4455, the cut would've given 8 points. As it is I still have 10, but Dealer's crib of 2-4-4-?-? is scarily just a 3 or 9 card away from being valuable.

5d lead gives a 50:50 chance to score 15/2, or maybe even a 2/46 chance at 15/8.
Guest says: Question: how does a 5d lead give a 50:50 chance to score 15/2?
james500 says: Hiya Guest, hope you're well. To answer your question, it's a typo. I meant to say a 50:50 chance to score 25/2 if Dealer scores 15/2. If I lead a 5 there are four different responses that Dealer can make that score 15/2: a 10, a Jack, a Queen or a King. Two of those responses (10/K) allow me to counter score. Given that Dealer will be biased towards discarding a Jack to their own crib, the chances of 25/2 may in practice be even better than 50%. Sorry for the confusion.
Guest says: Thanks! Have a great day.
Rosemarie44
2052 votes

Joined: March 2016

 
 
 
Tuesday 3:30 AM
Surely offense in this position but I am not sure about tossing 2 points to the dealer with a pair of 4's worth 6 points in value. I chose the safer toss 4-K worth 4.36 points in value and a hand that I believe has the potential with more cuts that tossing 10-K (which incidentally is lower in value, 3.85 points).the cut of a "2" didn't help my hand.
Inushtuk1 says: Hey congrats Rosemarie. You got it right according to the HalscribCLX
Rosemarie44 says: Thank you Inushtuk1. I was not sure of this one today and looked at it quite a few times.
BigFoot Bob
624 votes

Joined: April 2016

 
 
 
Tuesday 3:40 AM
Keeping the possible double run and tossing the killer XK to the pone crib.
glmccuskey
4101 votes

Joined: April 2011

 
 
 
Tuesday 5:33 AM
Hard to pass up 10 points with many cuts for 14-20.
Gougie00
5730 votes

Joined: March 2008

 
 
 
Tuesday 6:43 AM
Elsewhere on the board, I'd toss K-10. Here I'll curl my nose and toss 44. I have a sure 10 pts, and someone is going to have to convince me to sacrifice points.

Lead the 10.
Inushtuk1
1487 votes

Joined: July 2016

 
 
 
Tuesday 9:06 AM
It certainly *is* hard to pass up 10 points with many cuts for 14-20. It's *also* hard to pass up 4 cuts for 24, *and* make the best discard possible.

Gougie needs some convincing. Well, 4-4-5-5 has an average hand of 9.30. The 5-5-10-K averages only 2.61 points higher, even though it starts with 6 more. Using Ras's crib averages, 5-5-10-K wins with an expected average of 5.91. 4-4-5-5 has a respectable expected average of 5.46. James brought up the negative delta effect with us holding two 5's. I *think*, but am not sure, that the negative delta of retaining two 5's and tossing (10-K) is greater than that of holding two 5's and tossing (4-4). I'll leave that for Coeurdelion or JQT to explore further. Now which do you think will peg better offensively? Two touching pairs, or 5-5-10-K? I say 4-4-5-5 has the better chance to do some damage and score a run. Did I convince anyone? Probably not.

Leading the 4h.
Inushtuk1 says: On most replies to the 4h lead I will play my 5h. You know what to do on the common 7 reply. The reason for the 5 is to get Dealer to engage in a run, or pair my 5 before the count gets too high for me to score trips or a run. And you know what to do on the not so common 6, 5, 4, or 3 replies. Why would Dealer drop a 6 on my 4? Because he has a poor hand and has a 3 or 7 to back his play. I'm okay with that as long as i get my (15-5). Dealer may also be jammed up with 3-4-5-6 or similar. You just never know what might happen with that 4 lead.
Ras2829 says: Hi Inushtuk1: Have you queried this hand from this position on Cribbage Prof?
Inushtuk1 says: Yes I have. The bot suggested the (K-10) for best expected averages. 4-5-5-10 is better for win %'s by 1.2 % points. I did not think that would be a factor at this early stage of the game. I guess I was wrong. I still like my keep the best regardless.
spin121
299 votes

Joined: March 2016

 
 
 
Tuesday 9:25 AM
Only an 8 or 9 doesn't add value to this hand. Can't resist going for that 6 cut and tossing 10 K over the board. Part of me thinks this is a very bad choice and the other part of me doesn't care. heh
spin121 says: If this was an actual game I would probably toss 4 4. Don't think I'd have the guts to toss 10 K.
ILostMyJob
3565 votes

Joined: September 2013

 
 
 
Tuesday 9:59 AM
The allure of K-10ing pone's crib is too strong...
dec
6358 votes

Joined: April 2008

 
 
 
Tuesday 1:00 PM
1. I am non dealer and 16 X-5's still in the deck. 2. If I needed a three to qualify in a tourney I might do the K-10. 3. A four point sacrafice not sure it is the right play. dec
Inushtuk1 says: Three very good points dec. This certainly is a fine puzzle from the Ras man.
Ras2829
5154 votes

Joined: November 2008

 
 
 
Tuesday 1:25 PM
Well, playing offense does it seem that holding 4 points should be preferable to 10 points? Yup, it is! The offensive pegging edge goes to holding the adjacent pairs, only an 8/9 does not add value, and we've already doubled the value of the hand with the cut of the deuce. We avoid that pair of fours to opponent which averages 6.000 and discard 10-K 3.848 which scores 2 or less 45.494%. Of course the 4-4 will never score less than two points while many of the 10-K tosses result in a zero point crib. The 4-4 toss results in cribs of 8 points or more 32.220% while 10-K does that at rate of 16.529%. Those are huge differences when it comes to discard values. Inushtuk1 does a good job of covering potential pegging opportunities. Offense is not always what it seems and it is difficult to estimate with some degree of accuracy what pegging values of a given set of cards might be. Based on my scant empirical data the 4-4-5-5 is about .2 greater in offensive pegging value as compared to the 5-5-10-K. That's quite a small amount. That sliver of pegging value, the potential low-scoring crib, and the potential added value to hand score with all cuts other than the 8-9 makes the combined value higher for the two pairs.
Ras2829 says: BTW if you held two fives in some form, don't see where leading the five is of value. Believe most dealers will not pair a five lead on first hand of game unless holding 5-5 themselves. If you held the 10-K with the 5-5, there is a better case to lead a five as you might be able to pair a 10 or King in response to that lead. If only holding one X-point card, RAS sees no advantage to leading the five. If holding 4-4-5-5, would lead the 4h.
Inushtuk1 says: And yet the bot is leading the 5. I don't get it myself. I understand his reasoning for choosing the (4-K) however.
Sgt Pegger says: Ras I'm with you all the way on this one! This is the beginning of the game and if I'm going to get loose with the cards now is the time to try it. Only 8 cards in the remaining 46 do not help this hand. With the 10/K throw I like my chances on this one.
HalscribCLX
5318 votes

Joined: February 2008

 
 
 
Tuesday 1:30 PM
At 0-0* playing an Offense strategy for the pegging the dynamic expected averages and Win/Loss %s are:

________________Our
Offense___Hand__Pegs__Crib___Total___W9 %____W10 %
4-4-5-5____9.30+1.37+(-3.49)=7.18____30.1____28.7
4-5-5-10___9.52+1.50+(-3.88)=7.14____30.7____29.3
5-5-10-K__11.91+1.20+(-6.17)=6.94____35.8____30.0

Offense______L9 %____L10 %
4-4-5-5______34.9____45.4
4-5-5-10_____36.0____45.8
5-5-10-K_____41.3____46.7

4-4-5-5 is best for expected averages by 0.04pt over 4-5-5-10. 5-5-10-K is best for Win %s but worst for Loss %s. 4-5-5-10 is second best for Win %s and Loss %s and as said only 0.04pt lower for expected averages. So I'll select 4-K to discard.

After the 2 cut I'll lead a 5 and play Offense:

Lead_______Our Pegging Pts.
5_______________1.48
10______________1.22
4_______________1.06
Coeurdelion
5595 votes

Joined: October 2007

 
 
 
Tuesday 2:30 PM
I think its between 4-4-5-5, 5-5-10-K and 4-5-5-10:

4-4-5-5: 4pts - 4pts (Schell: 3.88) = 0pts

4-5-5-10: 6pts - 4½pts (Schell: 4.36) = +1½pts

5-5-10-K: 10pts - 6½pts (Schell: 6.53) = +3½pts

Potential:

4-4-5-5: Improves with AAAA, 2222, 3333, 44, 55, 6666, 7777 + 14xXs = 38 cuts = 38/46 = 82.6% up to 16/24pts with 3333, 6666 = 8 cuts.

4-5-5-10: Improves with AAAA, 3333, 44, 55, 6666 + 14xXs = 30 cuts = 30/46 = 65.2% up to 12/14/16pts with 3333, 55, 6666, 101010 = 13 cuts.

5-5-10-K: Improves with 55 + 14xXs = 16 cuts = 34.8% up to 14/16/20pts with all cuts.

Pegging:

I think 4-4-5-5 will peg best with 4-5-5-10 next best.

Position:

As usual as First Pone I'll play Offense to try to improve my position.

Summary:

4-5-5-10 starts with +1½pts more than 4-4-5-5 and although its 2pts behind 5-5-10-K it has much better potential. So I'll select 4-K to discard.
CL343 says: The T554 hold wasn't on my radar. I was torn between the KT55 or the 4455. I like your analysis; shows me I overlooked this hold big time. Thanks!