Combinatorics, Probability; Difficulty: medium Park your car This week’s Riddler Classic is mainly an exercise in combinatorics. The Classic reproduced: From Dave Moran comes a practical parking puzzle: There’s a
Walter Isaacson ★★★★★ 4.5/5 Non Fiction; Science A lot more than the title suggests Walter Isaacson has mastered the writing of the Inventor-biography. He’s done it with Steve Jobs, Einstein
Richard Osman ★★★★★ 4.5/5 Fiction On Target Unlike the title, this latest installment, Richard Osman’s third (and presumably final) book in the Thursday Murder Club series, is bang on target—
Logic, Geometry, Calculus; Difficulty: Hard How Fast Can You Make The Track? This week’s Riddler Classic is a Brachistochrone curve problem, but with a constraint. The solution can be intuited
Combinatorics, Logic; Difficulty: easy How Many Brackets Can You Bust? This week’s Riddler Classic is once again a counting/logic exercise just in time for March Madness with an interesting extra
S.B. Divya ★★★★★ 3/5 Fiction A book exploring the questions everyone is (or should be) asking Over lunch recently, a friend and I were discussing what is likely top of
Combinatorics, Probability; Difficulty: medium Winning at Italian Solitaire After a tough geometry/calculus question last week, this week’s Riddler Classic is a counting/probability exercise about a version of Italian Solitaire. The
Geometry, Calculus; Difficulty: hard It’s A Star! It’s A Plane! It’s … The Riddler! This week’s Riddler Classic is a geometry question requiring a bit of calculus. The Classic reproduced:
Probability, Calculus; Difficulty: medium Can you take down all the bottles of beer? This week’s Riddler Classic is a probability question based on the popular reverse cumulative song 99 bottles
Logic, Calculus; Difficulty: Easy Can You Fend Off The Alien Armada? The first Riddler of 2023 is a straightforward but interesting resource optimization logic Q. The Classic reproduced: The astronomers
Emily St. John Mandel ★★★★★ 4/5 Fiction Meditative writing and reading I started the year (2022) watching the excellent Station Eleven on HBO adapted from Emily St. John Mandel’s book
