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| White played opening 43U, Blue on roll | |
Great explanations by Neil:
- 43K (double hit) makes a mess out of your position losing the 8 pt and leaving a stack of 5 checkers on the 6 pt with three blots. This play is likely only correct when things start to be like gammon-go. Usually it will be better to play 24/20 8/5x and fight for both 5 pts.
I had 65S here somewhere over the past month (I think was Novi) and played S correctly(according to this RO result) I didn't know the RO result, but my reasoning was that I was duping aces, my spare on the 8 pt good for attack if my opp can do anything with his blots and I am not ahead in the race as after an opening 65R. Additionally, S is more complicated.
I would add that for 43U-43 (where money agg is [X K25 x46 U48]), for GG Snowie is [K X34] 36k. Given the size of the likely margin, rolling it out on a proper AtS bot is a low priority. In other words, if you are at GG, your opponent opens with 43U and you roll 43, far from being broken-hearted, you can gleefully (correctly) hit twice.
For 43U-65, the ace duplication is indeed important. It is worth noting that for 32U-65, the ace duplication is not as efficient (the 21pt is a weaker anchor than the 20pt), and S (Split, 24/18 13/8) has a much smaller advantage over R (Run, 24/13).
Nack