EMG

How it works in play

In a match, an error costs match-winning chances, which aren’t comparable from one score to another. EMG, equivalent to money game, rescales an error at any score to the size it would have in a money game, so error rates and PR can be compared across scores.

Related terms

• Match equity — The probability of winning the match from a given score.
• Equity — The expected value of a position, typically expressed in cube units or points.
• PR — Performance rating: average equity error per decision versus a neural-net analyzer. Lower is better; world class is under 2.
• MET — Match equity table — the standard reference grid of match-winning chances by score.

Go deeper

• What PR measures
• Cube theory: match equity and the score
• Backgammon strategy, from first roll to bear-off

In other languages

• العربيةEMG
• ΕλληνικάEMG
• فارسیEMG
• עבריתEMG
• РусскийEMG
• TürkçeEMG