About Site-Drill

Free. No ads. No login. Made by rbaiforge.

Feedback

• Report a bug / Suggest
• Report a site/map error

Credits & licences

• Site coordinates: Wikidata (CC0)
• India outline: Natural Earth 1:10m India point of view (public domain), checked against the Survey of India 1:16m outline
• Scheduling: FSRS via ts-fsrs (MIT)
• Map maths: d3-geo (ISC)
• Hints, notes and key points: © 2026 rbaiforge, all rights reserved (original writing; sources on every site)

Privacy