Doomsday Game - What Day of the Week is it?
About
Lifted straight from Wikipedia: The Doomsday rule is an algorithm of determination of the day of the week for a given date.
The idea of this game is to improve you mental arithmetic skills by calculating the day of the week from the date given.
Help
Where to start?
I'd suggest the Wikipedia article. This explains the background, history, and provides a few ways to calculate it.
Doomsday rule - https://en.wikipedia.org/wiki/Doomsday_rule
Anchor Years
List of anchor years for centries the date may come from:
| Century |
Anchor day |
| 1800–1899 |
Friday |
| 1900–1999 |
Wednesday |
| 2000–2099 |
Tuesday |
| 2100–2199 |
Sunday |