Puzzle Archive

February 2020 Solution

The answer to this month’s puzzle is that D = 1 and the resulting probability is 2/pi (or about .6366).  Some of you were able to determine this via simulation, and others went for a more analytical approach.    Click here for our write-up of the solution.

Congratulations to all of our solvers!

Correct Submissions from:

Rahul Saxena
JS2
Keith Schneider
Zihao Li
Glauber Guarinello
Dimas Ramos
jzhang
David Fair
Geoff West
Guillermo Wildschut
Jacoby Jaeger
Wula
Francois Crucifix
Reyer Swengel
PB
Hudson Vieira
Alex Tatomir
Karl Mahlburg
John Quitno
Primusa
s41t
Ethan Morgan
PDM
Monotof
AidanR
Erik-Cristian Seulean
Filip Vesovic
Angus King
Tom Holmes
Rickard Bolin
GordonM
Henri Devillez
Beni Egressy
Cory Nezin
Mateus Thimóteo
Vinay Kameswaran, Shawn Ng, Dave Cox
Amos L
jboneham1605
Tomer Tzadok
Will Christerson
Ian Sleightholme
Andrew Milas
Nima Oparvar
Willem Hoek
martinobdl
Jarry Xiao
Stranger
Sandip Ghoshal
Stan Tendijck
Robert Oxer
Trevor Teolis
Christopher Wiriawan
Jason Weinstein
Nathan Lo
John Bamford
MCJ
Sherwin
Bruno Costa Alves Freire
Jaime Benabent
Christoph Renschler
Jeffrey Fu
Kendric Postrero
Andrew T
Cheston Chow
Orlin Kuchumbov
Roberto de la Cruz Moreno
Can Bostanci
Tadek Krassowski
Ryan Sullivan
Alexander
igarfinkle
Elvira
Magister Mugit
Shehab Alshehabi
Jarett Lee
Jonah Azoulay
Tai Zong
Ahmed Shahbaz
vichare
James Y
ZK
Ben Reiniger
Andrew Smith
jven
Edvin Memet
Dan Lin
Nick S.
Aaron Klein
Geoff Donoghue
Senthil Rajasekaran
MJT
R. Sundarigari
Andreas Munk
arriopolis
Xizhe Cheng
Carlos Luis Yajure S.
Calvin Pozderac
Sébastien Geeraert
Wendel Liu
Sean Egan
William Machado
Christian Mitrache
Tracey Chen
Owen Stanley
juxd
wbay
Kristof S
Eric the Half a Bee
Russel Burgess
Oscar Andersson
Pat Gardner
Kevin Silberberg
Andy L
asifion
Jordan Katz
Sergey Tychinin
404akhan
Alex Fuster
Sandman
Peter Wilczynski
Pierre I.
Akshay