Are you absolutely sure that the name of this street is Zaychar? Yes, there is a sign with this name here - https://www.bing.com/maps?cp=43.852451%7E25.959306&lvl=19.0&mo=om.1&pi=-5.3&style=x&dir=65. But here - https://www.bing.com/maps?cp=43.852913%7E25.959026&lvl=19.0&mo=om.1&pi=-0.3&style=x&dir=262 I see a sign "ул. Есперанто 2" (Esperanto street). Yes, this is also the name of the block.