Your number, one digit away

One digit away

One change could reach Extreme.

Position 3: 2 → 1 · +268 points.

Gained: Triangular number, Digit sum 9, Descending segment, Double pair, Harshad number, Happy number.

Lost: Digit sum 10, Adjacent digit run, Triple digit.

53 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.