How many opening are in the chess???

@Vijaynalan-Lachat8
There are 500 openings in chess with multiple variations.

for the first to moves, there are 400 different moves possible

There are dozens of different openings, and hundreds of variants. The Oxford Companion to Chess lists 1,327 named openings and variants.

https://en.wikipedia.org/wiki/Chess_opening#:~:text=There%20are%20dozens%20of%20different,1%2C327%20named%20openings%20and%20variants.

depends what u call an opening. u could just move pieces randomly for 5 moves and it could be considered an opening. otherwise, the openings that are actually used in daily chess, there are 1327 named openings and variants