Category Archives: Basic Solving Procedures

Starting with slink marking to find all remaining candidates.

Super Fiendish Ends With 87 and 97


The review of Brian Challenger’s Sudoku Super Fiendish is ending quietly. SF 87 gets into beginning advanced, while SF 97 is finished in line marking. As to difficulty level, this small collection ranges widely and erratically. Is it  Fiendish? Not … Continue reading

Posted in Basic Solving Procedures, Puzzle Reviews | Tagged , , | Leave a comment

Super Fiendish Bookends 67 and 77


This post steps through the most fiendish of the 10 puzzles preselected for the review of Brian Challenger’s Super Fiendish Sudoku, SF 67. , and then adds one of the bypass victims, SF 77. Looking at the trace, you might … Continue reading

Posted in Advanced Solving, Basic Solving Procedures, Puzzle Reviews | Tagged , , , , , , , | 4 Comments

Wayne Gould and Super Fiendish 4-57


This post reports two puzzles in the review of Brian Challenger’s Super Fiendish Sudoku, Sufi 47 and 57. Both are basic level, and in fact, half of the review puzzles are. For Sysudoku solvers, the term ‘fiendish’ is an overreach. … Continue reading

Posted in Basic Solving Procedures, Puzzle Reviews | Tagged , , , | Leave a comment

Tracking a Patterns Game Entry


This post and the next explore two entries in the online Sudoku composing contest known as the “Patterns Game”. The contest is between Sudoku composers:  who can submit first puzzles with unique solutions that fit a “pattern” of givens issued … Continue reading

Posted in Advanced Solving, Basic Solving Procedures | Tagged , , , , , | Leave a comment

Two more Basic FTSPAH, 64 and 164


FTSPAH 64 exits in the bypass, and illustrates several bypass tactics that avoid the curse – invoking frustration that the  composers of FTSPAH puzzles claim on their cover. Its post partner 164 illustrates more bypass moves and survives for a … Continue reading

Posted in Basic Solving Procedures, Puzzle Reviews | Tagged , , | Leave a comment

FTSPAH 104 and 144


The review of the unspeakable FTSPAH continues with two more puzzles selected arithmetically. The basic trace of FTSPAH 104 is Sysudoku Basic at its best. A near collapse in the bypass is extended by a deferred hidden dublex, which 104 … Continue reading

Posted in Advanced Solving, Basic Solving Procedures, Puzzle Reviews | Tagged , , , | Leave a comment

Systematic FTSPAH 44 and 84


This post demonstrates two more FTSPAH unlikely to frustrate anyone following the Sysudoku order of battle. FTSPAH 44 begins with an unusually large number of givens, which generates a correspondingly large number of 3-fills. In fact, the givens offer both … Continue reading

Posted in Advanced Solving, Basic Solving Procedures, Puzzle Reviews | Tagged , , , | Leave a comment