{"id":3208,"date":"2020-12-24T11:56:20","date_gmt":"2020-12-24T09:56:20","guid":{"rendered":"https:\/\/blog.atlant.is\/?p=3208"},"modified":"2021-02-08T00:38:34","modified_gmt":"2021-02-07T22:38:34","slug":"bobbins-rules","status":"publish","type":"post","link":"https:\/\/blog.douzeb.is\/?p=3208","title":{"rendered":"Bobbins, rules"},"content":{"rendered":"\n
\"\"<\/a>
Arrow sudoku<\/em><\/span>1<\/sup><\/a><\/span> by Fun Learning<\/a><\/figcaption><\/figure><\/div>\n\n\n\n\n\n\n\n

A glossary of sudoku terms<\/h2>\n\n\n\n

Antiknight sudoku — identical digits cannot be a chess knight’s move apart from each other.<\/p>\n\n\n\n

Arrow sudoku — digits along the arrow in the grid must sum to the digit in its circle or to the number in its pill (a pair of digits forming a number, reading left to right or top to bottom).<\/p>\n\n\n\n

Bifurcation — poor taste, to be avoided.<\/p>\n\n\n\n

Bobbins — that feel when you thought it would be useful.<\/p>\n\n\n\n

a brilliant Constructor — Phistomefel.<\/p>\n\n\n\n

Disambiguation — fixing ambiguous pairs (say).<\/p>\n\n\n\n

German whispers — adjacent digits along the line must differ by at least 5.<\/p>\n\n\n\n

Killer sudoku — the sum of all digits in a cage (marked with dashed lines) must match the small number printed in its corner; no digit appears more than once in a cage.<\/p>\n\n\n\n

Knowledge bomb — the digits 1 to 9 add up to 45.<\/p>\n\n\n\n

Kropki dots — a white circle between adjacent cells indicate a difference of 1; a black circle between adjacent cells indicates a ratio 1:2.<\/p>\n\n\n\n

\u00ab\u00a0Let’s get cracking\u00a0\u00bb — obviously.<\/p>\n\n\n\n

Magic square — a 3×3 square where each row, column, diagonal adds up to 15.<\/p>\n\n\n\n

Mondrian — well ahead of his time, created paintings out of sudoku cells and then colored them in.<\/p>\n\n\n\n

\u00ab\u00a0My goodness me\u00a0\u00bb — what a devious mind.<\/p>\n\n\n\n

\u00ab\u00a0Now we are cooking with gas\u00a0\u00bb — when at last there are enough clues to pick up pace.<\/p>\n\n\n\n

Normal sudoku — each row, column, and 3×3 box contains each digit from 1 to 9 exactly once.<\/p>\n\n\n\n

Sandwich sudoku — the numbers on the side of the grid indicate the sum of the cells sandwiched between the 1 and the 9 (the crusts of the sandwich) on the corresponding line.<\/p>\n\n\n\n

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