When i do the 31/OCT, the solution show 10/10 as nearest squadday, i though 11/7 is the nearest ?
[0] https://firstsundaydoomsday.blogspot.com/2009/12/quick-start...
I'd also need to thanks for Dr. Arthur Benjamin. I saw his "That math show" with my 9 years old where he introduced this Doomsday rule, I thought it was really cool and try to create some interactive tutorial for it. Would love to see if this can help other kids or adults https://www.thatmathshow.com/