127.0.0.1: Created page with "'''Oriented Chains''' are generalisations of the basic xy-chains. The central idea is that the information collected from previous candidates in a chain (and/or from the targ..."

2021-10-25T15:28:08Z

Created page with "'''Oriented Chains''' are generalisations of the basic xy-chains. The central idea is that the information collected from previous candidates in a chain (and/or from the targ..."

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'''Oriented Chains''' are generalisations of the basic xy-chains.

The central idea is that the information collected from previous candidates in a chain (and/or from the target) can be used to select the next candidates. Oriented chains are either 2D or 3D:

- oriented 2D chains: xyt-chains, xyz-chains and xyzt-chains, together with their "hidden" counterparts: hxyt-chains, hxyz-chains and hxyzt-chains;

- [[oriented 3D chains]]: nrct-chains, nrcz-chains, nrczt-chains.

The original reference to all these chains is the book "The Hidden Logic of Sudoku" by ''Denis Berthier''.

Oriented Chains - Revision history

127.0.0.1: Created page with "'''Oriented Chains''' are generalisations of the basic xy-chains. The central idea is that the information collected from previous candidates in a chain (and/or from the targ..."