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Does XG's definition of PR annoy you?

Posted By: Tenland
Date: Tuesday, 9 July 2024, at 1:09 p.m.

In Response To: Does XG's definition of PR annoy you? (Timothy Chow)

Already today, XG does remove some decisions even though all legal actions don't have the same equity: it disregards correct no-doubles where doubling would have been a huge error.

In similar fashion, it should

- disregard "correct"/optional no-doubles post Crawford (at least if the player is odd away) - disregard checker plays where you had an optional cash pre roll and are guaranteed to have a cash post roll (e.g. closed board when opp has 1 checker off) - disregard gammon-saving and backgammon-saving moves in positions that had no contact even before the move was made. NB: I am talking about the move that manifests the save, not moves that move the checkers around trying to save it.

These are hacks to herd decisions where they aren't, which just delay games due to PR obsession.

Note, in all of the above cases, I am only talking about the denominator. Any errors should count the usual way, the equity squandered should just be divided by a smaller number.

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