One more than the number of different letters in this puzzle

Question:

Answer:

NINE

Length:

Similar Crossword Questions:

Number of letters in the shortest answer in this puzzle
Thing depicted by this puzzle's circled letters
Distressing letters found 9 times in this puzzle
Process by which an element's atomic number may be reduced, and a hint to this puzzle's theme
Classified letters after a number
Letters for the names "buried" in this puzzle's theme answers
The works ... or how each set of circled letters in this puzzle is arranged
City whose language uses only the 12 letters found in this puzzle
Event where the number 12 is important, and a feature of 12 two-word answers in this puzzle
Puzzle in which the initial letters of each line form a word or phrase
Second letters of this puzzle's five theme answers (seen in order)
This completed puzzle has 10 of them, each three letters long, reading diagonally
Ones whose names are spelled by this puzzle's circled letters ... with representatives of two realms "wrestling" for supremacy
Letters featured in this puzzle's theme
Number of protons by which the elements in the four longest puzzle answers have been enhanced
String of letters found in this puzzle's longest Across answers
Blood-typing letters, and a hint to the "transfusions" in this puzzle
Longest number when spelled out in words that has no repeated letters
Number-logic puzzle
Letters before a phone number maybe
Letters before a number: Abbr.
Internet letters, and a hint to this puzzle's theme
The only grading letters that appear anywhere in this puzzle (other than the present clue)
B'way success letters, and title of this puzzle
When doubled, a number puzzle