Which rule made this?
One rule flips a fair virtual coin. The other prevents four identical symbols in a row. Make your best guess, then look behind the pattern.
How this works
Each round selects either rule with equal probability. A seeded pseudorandom generator supplies the coin flips. The limiter forces a switch after three identical symbols; otherwise it uses the same 50/50 rule. The simulation makes a fresh 50/50 source choice for each round; there is no three-of-each quota.
A four-symbol run excludes the limiter. Without one, both sources are possible, but not necessarily equally likely. The same seed and version reproduce the same samples. These model independent coin flips rather than establish physical randomness. No result is a diagnosis or a measure of your intelligence.