{"product_id":"modus-fortis-sudoku-logic-sudoku-reason-9781684982233","title":"MODUS FORTIS Sudoku Logic, Sudoku Reason","description":"\u003cp\u003eModus Fortis represents a Khunian shift in Sudoku strategy. Using just four basic tactics that give rise to just two molecular structures--Doubles and Pairs--that evolve into just two Families of complex structures (Exclusive Sets and Forbidden Sets) is all that is needed to solve every Sudoku. But just as E = mc2 is easy to visualize, there is a bit more to understanding the equation. The logical principle that drives the Solution Process is the Exclusive Disjunction: the Modus Fortis. This, combined with the Pairing Principle, guides the Sudoku-ka through the process of constructing a Solution from emerging Sets of Digits, identifiable as structural patterns. A concise notation system allows for recording every significant event in the Solution Process, just as in chess. Richly illustrated, this is a readable book for all levels of interest.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Newman Springs\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/21\/2024\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9781684982233\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 376\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.57lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 8.50w x 0.78d","brand":"Sudoku Sam","offers":[{"title":"Default Title","offer_id":44625800364213,"sku":"9781684982233","price":27.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/0804\/6492\/files\/img_cb1f26c5-be46-4dbc-9eb4-8492d3a82821.jpg?v=1725978267","url":"https:\/\/pastforward.org\/products\/modus-fortis-sudoku-logic-sudoku-reason-9781684982233","provider":"Past Forward","version":"1.0","type":"link"}