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Friandises Geek Sudoku

Christmas tree

A puzzle by Joseph Nehme

Mark Goodliffe and Simon Anthony from cracking the cryptic are doing a fantastic job of making us discover the fascinating world of advanced sudoku.

Here is a treat for the season: normal sudoku rules apply, and identical digits cannot be a chess knight’s move apart. The grey square marks an even digit. Any two cages that share an edge and whose totals have a difference of 1 have a white dot between them, and any two cells that share an edge whose totals have a ratio of 2:1 have a black dot between them; there is a negative constraint so two cages touching each other without a dot do not have totals with a difference of 1 or a ratio of 2:1.

Please try the puzzle here.

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Geek Tips

HoRNDIS

Indispensable pour partager la connexion Internet entre un portable Android et un MacBook.

See also the Remote Network Driver Interface Specification on wikipedia.

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Coding Friandises Geek

Hats Calculator (2/3)

The hats medic
The hats medic

This is the second in a series of three exercices de style to show some interesting aspects of the game of hats: a puzzle which was initially proposed by Lionel Levine.

Here we introduce the hats calculator: a toy application which implements the operations introduced in the first exercice.

Try it yourself

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Geek Tips

git filter-repo

Eventually you will commit a huge file to your git repository by mistake. Use git-filter-repo to remedy the situation.

Installation:

Example:

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Geek

HP-41C 3D model

A highly detailed model of the HP-41C calculator in EASM format.

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Geek

1-bit audio driver

Listen to 1-bit music on the Apple II:

Technical:

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Geek

Real Programmers Use Butterflies

Richard Stallman

Thanks Randall Munroe.