Top Tweets for #538Riddler
My solution to this week's #538Riddler classic.
I used a Markov chain to obtain the likelihood of each person having the cranberry sauce after N passes and the likelihood of person 11 (the person sitting opposite us) having received it by pass N.
My solution to this week's #538Riddler
The optimal solution to the Pinball Wizard riddle is very elusive. It requires an +1 order of magnitude precision for every ~ +3 bounces.
I managed to get to 43 bounces before running into floating point precision problems. :/
@xaqwg
My write-up for last week's #538Riddler: arranging points in the plane to maximize the number of crossing-free Hamiltonian cycles:
https://t.co/cXWn0x7fgy
6 points: 16 possible arrangements, 29 distinct cycles.
7 points: 135 possible arrangements, 92 distinct cycles.
@xaqwg
My solution to this week's #538Riddler problem, a probabilistic version of the prisoner's dilemma! Write-up here:
https://t.co/bCMJc32qq1
@xaqwg
My solution to this week's #538Riddler, a neat calculus problem about snow plowing. My write-up is here:
https://t.co/brpVvQSege
@xaqwg
Last week's #538Riddler was about the card game SET. The most cards such that they contain no set? 12 cards with the most sets possible? I answered these questions using Python and @gurobi (sample solutions attached).
My code is here:
https://t.co/tSFIEM8K9g
@xaqwg
This week's #538Riddler: in a coin-flipping game involving fair coins, is it possible to finish with a positive score more than half the time on average? Turns out the answer is YES!
Here is my write-up:
https://t.co/vZt5wv6okY
@xaqwg @ashjasont
If only I had a good place to sit and think about this week's #538Riddler classic @xaqwg @ollie #riddlernation
This week's #538Riddler: Wythoff's Game: two piles of coins, players take turns removing any number of coins from one pile or the same number of coins from both piles. Whoever takes the last coin wins. What is the best strategy?
My write-up here: https://t.co/7dX8cuQmWA
@xaqwg
My solution to this week's #538Riddler: How long on average do ducks that simultaneously random-walk on a 3x3 lattice of stones have to wait before they all land on the same stone? Get your daily dose of Markov chains!
https://t.co/q7Fshi9UGQ
@xaqwg @ashjasont
Visualizing my solution to this week's #538Riddler. The alphanumeric value turns quasiperiodic after sol'n of 279.
@xaqwg @LaurentLessard @DarkAdonisSA
Short #rstats code here:
https://t.co/bXpzr1iftb
My solution to this week's #538Riddler: Which numbers, when written out in words and converted to numerical score (A=1, B=2, etc.), have large scores compared to the value of the original number? My write-up is here: https://t.co/l1BZp70vZ9
@xaqwg @ashjasont @HectorPefo
Entertaining #538Riddler from @xaqwg to greet the year. Generating, iterating, and rearranging letters, engineering code and narrating my solution (https://t.co/QtbDq8XEjb) had me grinning - no regretting this one!
(In case it wasn't obvious, you can do a lot with AEGIN[R]T!)
My solution to this week's #538Riddler. What is the highest scoring board in the NYT game "Spelling Bee"? Write-up and code here:
https://t.co/PS1KQ1mMpF
Using S: [E]AINRST. Score=8681.
Not using S: [R]AEGINT. Score=3898.
Worst possible: [X]CINOPR. Score=14.
@xaqwg @HectorPefo
My solution to this week's #538Riddler puzzle: How many individual socks must you draw, on average, until you get a matched pair?
https://t.co/KJSQseczkr
@xaqwg @HectorPefo @ptrajeev @ianrhile
My solution to last week's #538Riddler puzzle: "What possible (whole number) dimensions can a rectangular prism have if its volume (in cubic units) is the same as its surface area (in square units)?
https://t.co/YjwDE5Cdg6
@xaqwg @HectorPefo @ptrajeev @AdvantageTr8 @DarkAdonisSA
While solving the #538Riddler Trifecta Birthday puzzle from @xaqwg I discovered that it's odds-on that there would be a triple-birthday among the 100 senators, ~64.59% chance (assuming no Feb. 29th bdays and uniform across the other 365 days) @ollie #riddlernation 🎂
The classic #538Riddler from @xaqwg this week demonstrates the value of seeding in time-trial racing: the last team to race boasts almost ten times the win probability of the first, even though the teams are all identical in ability! #riddlernation @ollie
Most Popular Users
Elon Musk 
@elonmusk
240.5M followers
Barack Obama
@barackobama
119.3M followers
Donald J. Trump
@realdonaldtrump
111.7M followers
Cristiano Ronaldo
@cristiano
110.4M followers
Narendra Modi
@narendramodi
107M followers
Rihanna
@rihanna
97.6M followers
NASA
@nasa
92.1M followers
Justin Bieber
@justinbieber
90.9M followers
KATY PERRY
@katyperry
87.5M followers
Taylor Swift
@taylorswift13
81.4M followers
Lady Gaga
@ladygaga
72.9M followers
Kim Kardashian
@kimkardashian
69.7M followers
Virat Kohli
@imvkohli
69.7M followers
YouTube
@youtube
68.7M followers
Bill Gates
@billgates
63.8M followers
The Ellen Show
@theellenshow
62.5M followers
Neymar Jr
@neymarjr
62.4M followers
CNN
@cnn
61.9M followers
X
@x
60.8M followers
Selena Gomez
@selenagomez
60.6M followers