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| 51S-22N-32%-61 | |||
| Position ID: 0OfIASiYc8wBMA Match ID: cAkHAAAAAAAA | |||
| Dmitriys Nactation for the position he posts in BGO Msg. No. 127744 is just about perfect. The only change I would make is to use % (Alternate slot) instead of the incorrect O (Outer). See the diagram above. Nactations for many of the possible plays in 51S-22N-32 follow. Top and bottom have been switched in the diagram below. Blue, the player on the bottom, must play 32. |
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| 51S-22N-32 | |||
| Position ID: mHPMATDg8+ABKA Match ID: cIkJAAAAAAAA | |||
| Bot | Seed | Equity | Nacbracs | Eval By |
|---|---|---|---|---|
| XG 2.03 XGR++ Eval | [XGR++ seed] | 468.9 | [D %7 Z26 T32 O44 U45 $46 S52 V52] "&e | Taper_Mike |
| Family | Nactation | Traditional Notation | Note |
|---|---|---|---|
| Slot | $ | 13/10, 6/4 | Other things being equal, slotting the 5pt is better than slotting the 4pt. When you can unstack the taller point in the process of slotting the 4pt, however, it beats slotting the 5pt. |
| Alternate slot | % | 13/11, 8/5 | Although this play does not unstack the taller point, it still slots the 5pt, so it beats plays like 13/11 6/3 that rank lower in the $% (Slot/Alternate slot) family. |
| Down | D | 13/11, 13/10 | Far:Down:Jump:Inside = 0:2:0:0 In the outer board, blot destinations are preferred when they are farther from the 6pt. |
| Down | d | 13/8 | This play ranks 2nd in the D (Down) family because a spare destination on the 8pt is inferior to a blot destination on the 10pt. |
| Outer | O | 13/10, 8/6 | Far:Down:Jump:Inside = 0:1:1:0 Landing a spare directly on the 6pt beats any other play in the O (Outer) family. |
| Outer | o | 13/11, 8/5 | Second best puts a blot on the 5pt. This is the same as % (Alternate slot). |
| Split | S | 23/20, 13/11 | This is the only way to play the larger die on the far side of the board, and bring a blot down into the outer board (from the far outer board) with the smaller die. |
| sTack or Tower | T | 13/8 | T (sTack or Tower) must add to a point that, when the play is completed, will contain four or more checkers. T can move a blot or spare, or even break a point. |
| sTack or Tower | t | 13/10, 8/6 | In the T (sTack or Tower) family, leaving fewer blots ranks higher. This play ranks 2nd in the family because it leaves a blot on the 10pt, while 13/8 leaves no blots. |
| Up | U | 23/18 | The UV (Up/Variant up) family contains plays where all checkers land between the 18pt and 24pt. |
| Variant up | V | 24/22, 23/20 | By the 6pt Convention, landing on the 20pt is inferior to landing on the 18pt. |
| Reverse split | Z | 24/22, 13/10 | This is the only way to play the smaller die on the far side of the board, and bring a blot down into the outer board (from the far outer board) with the larger die. |
|
Mike |