## Le Monde puzzle [#1076]

A cheezy Le Monde mathematical puzzle : (which took me much longer to find [in the sense of locating] than to solve, as Warwick U does not get a daily...continue reading.

A cheezy Le Monde mathematical puzzle : (which took me much longer to find [in the sense of locating] than to solve, as Warwick U does not get a daily...continue reading.

Last weekend, I found out a way to run updated plots within a loop in R, when calling plot() within the loop was never updated in real time. The above...continue reading.

A new Le Monde mathematical puzzle in the digit category: Find the largest number such that each of its internal digits is strictly less than the average of its two...continue reading.

A Le Monde mathematical puzzle from after the competition: A sequence of five integers can only be modified by subtracting an integer N from two neighbours of an entry and...continue reading.

Someone desperately seeking solutions to the even numbered questions of Introducing Monte Carlo Methods with R…. How odd!continue reading.

And here is Le Monde mathematical puzzle last competition problem Find the number of integers such that their 15 digits are all between 1,2,3,4, and the absolute difference between two...continue reading.

The penultimate Le Monde mathematical puzzle competition problem is once again anti-climactic and not worth its points: For the figure below [not the original one!], describing two (blue) half-circles intersecting...continue reading.

Rewording Le Monde mathematical puzzle fifth competition problem For the 3×3 tables below, what are the minimal number of steps to move from left to rights when the yellow tokens...continue reading.

A purely (?) algorithmic Le Monde mathematical puzzle For the table below, what is the minimal number of steps required to reach equal entries when each step consists in adding...continue reading.

And here is the third Le Monde mathematical puzzle open for competition: Consider for this puzzle only integers with no zero digits. Among these an integer x=a¹a²a³… is refined if...continue reading.

Recalling Le Monde mathematical puzzle first competition problem For the X table below, what are the minimal number of lights that are on (green) to reach the minimal and maximal...continue reading.

A second Riddle(r), with a puzzle related with the integer set Ð={,12,3,…,N}, in that it summarises as Given a random walk on Ð, starting at the middle N/2, with both...continue reading.

A penultimate Le Monde mathematical puzzle before the new competition starts [again!] For a game opposing 40 players over 12 questions, anyone answering correctly a question gets as reward the...continue reading.

In the Riddler of August 18, two riddles connected with the integer set Ð={2,3,…,10}: Given a permutation of Ð, what is the probability that the most likely variation (up or...continue reading.

A simple (summertime?!) arithmetic Le Monde mathematical puzzle A “powerful integer” is such that all its prime divisors are at least with multiplicity 2. Are there two powerful integers in...continue reading.

A simple Le Monde mathematical puzzle none too geometric: Find square triangles which sides are all integers and which surface is its perimeter. Extend to non-square rectangles. No visible difficulty...continue reading.

A griddy Le Monde mathematical puzzle: On a 4×5 regular grid, find how many nodes need to be turned on to see all 3×4 squares to have at least one...continue reading.

“We demonstrate HMC’s sensitivity to these parameters by sampling from a bivariate Gaussian with correlation coefficient 0.99. We consider three settings (ε,L) = {(0.16; 40); (0.16; 50); (0.15; 50)}” Ziyu...continue reading.

The most recent riddle on the Riddler consists in finding the shorter sequence of digits (in 0,1,..,9) such that all 10⁴ numbers between 0 (or 0000) and 9,999 can be...continue reading.

Another quick riddle from the riddler: solve the equation EXMREEK + EHKREKK = ?K?H?X?E which involves every digit between 0 and 9. While the puzzle can be unravelled by considering...continue reading.