How many Bitcoin (BTC) QIWI rub exchangers are there?

Inquiring minds want to know: Just how many Bitcoin (BTC) to QIWI ruble exchangers are currently operational in the market? With the ever-evolving landscape of cryptocurrency and financial services, it's crucial to stay informed about the availability of these services. Given the potential risks involved in currency exchanges, understanding the number of available options is a vital step in making informed decisions. So, how many of these exchangers are there, and what factors influence their availability?