| 156 | |
|---|---|
| |
| 63S-21H-61H-61H-54@-22 | 175 |
Position ID: 4HPiAQPga+QAOA Match ID: cAkJAAAAAAAA | |
Andreas: 24/20 (2) = U and 24/22(2) 6/4 (2) = E
My - possibly weak - "beginner move" is: 24/22 (2) 11/7 -> how to nactate?
David: @ is also correct for 24-20(2). If you prefer U, I believe that works fine too. E is correct and clear. I might try b for 24-22(2), 11-7. But, I am afraid that strictly speaking B or b implies playing from the midpoint. So, b is probably the terrible 24-22(2), 13-9. I have some other ideas. But, to avoid confusion, I'm to hold them to see if Nack or someone else has clear advice.
Nack: Pretty good, guys. You nailed @ and E.
While @ is recommended for 24/20(2), the alternative is V, not U. To understand why, click here and read the paragraph starting with "V also works..."
David was close for 11/7 6/4(2). The broad definition of B allows for moves within the outer board, not just (down) to it. That is, B means half the play is up and half is to/within the outer board. Here is a simple non-doublet example, and here are three more examples (see the first 18/14 10/9 paragraph and the one above it).
When doublets are played in more than one quadrant, the play that emerges with the most number of points on the board takes priority. (David, think of examples you've cited yourself: 21$-22 (E/e), 32D-22 (N/n), 6xS-33 (O/o or N/n, etc.). In case of a tie, follow the 6pt convention (with closest points taking precedence over closest blots).
In the position above, there are two B-type plays that end up with Blue owning five points: 22(2) 11/7 is B (the answer to Andreas' question), and 20 7(2) is b. (You shouldn't have to actually count total points; just notice when you're making or breaking them.)
22(2) 11/7 would be B even if White started with a fourth checker on the midpoint (taken from, say, the 6pt or 24pt), because the 7pt is closer to the 6pt than the 11pt is.
In a similar vein, N = 11/7 6/4(2), n = 13/11(2) 6/4(2), and N = 13/9 6/4(2); the 7pt is closest (to the 6pt), then the 11pt, then the 13pt.
Complex doublet plays (i.e., those having three or four different subparts of the move) are the trickiest that exist, but with a little practice, nactating these plays will become easier and even routine.
Nack