Single zero
The European wheel includes one 0 alongside 1–36.
A closer look at the single-zero wheel and the importance of variant-specific rules.

European roulette has numbers 1 to 36 and a single zero. The betting layout groups numbers in several ways; the wheel result and the chosen group must be read together.
American roulette adds 00. French roulette uses a single zero but can apply La Partage to even-money bets when zero occurs. The name of a variant therefore matters beyond its visual design.
A history panel records past rounds. It does not establish that a colour or number must appear next. Treat historical statistics as records rather than predictions.

A choice referring to one number has a different scope from a choice covering a group. For example, red and a particular red number refer to overlapping but unequal sets of outcomes.
Zero needs explicit attention because it is not part of the ordinary red/black split. Check the exact table's written treatment of zero rather than importing a rule from another version.
These points separate the choices and conditions that are easily confused.
The European wheel includes one 0 alongside 1–36.
The American layout adds a separate 00 pocket.
A French rule can change the loss treatment of certain bets on zero.
Confirm the wheel version before reading the layout.
Distinguish a number from a set of numbers.
Verify exceptional results and any special variant features.
They can share a wheel layout but differ in rules such as La Partage.
No sequence guarantees the next colour.
No. The exact table's rules remain necessary.
No. Concept imagery does not establish a playable connection.