# Learn date-to-weekday conversion

## Master the doomsday algorithm through mini games

## Weekday number

Find the correct weekday number for a weekday

## Leap years

Is the given year a leap year?

## Doomsday dates (basic)

Find the doomsday for a given month in a non-leap year

## Doomsday dates (advanced)

Find the doomsday for a given month and year

## Anchor day

Find the correct anchor day for a given century

## Divisor of 12

How many times can we divide the given number by 12

## Modulo 12

Find the remainder after dividing by 12s

## Divisor of 4

How many times can we divide the given number by 4

## Sum modulo 12 and divisor of 4

Find the modulo 7 of the sum of the modulo 12 and its divisor of 4

## Doomsday of a year

Find the correct doomsday for the given year

## Putting it all together (easy)

Find the day of the week for the given date

## Putting it all together (hard)

Find the day of the week for the given date