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Tag Archives: naked triple
Funster Extreme 46 Not So Much
The review of Charles Timmerman’s funster Hard to Extreme Sudoku continues with Extreme 46. It’s entertainingly advanced. Extreme 46 has its moments. The basic trace is spread across the page with 3-fill after 3-fill. Two unusual events occur in box … Continue reading
Coloring Wrings Out World’s Hardest 102
World’s 102 starts without ‘1’ givens and with two 3-fill lines. It winds up in a coloring trap expansion into a wrap. Basic makes progress in all three phases. Making a hasty bv … Continue reading
A.D. Ardson’s Sudoku Diabolical
This post begins a brief review of A.D. Ardson’s Sudoku Diabolical, with a review table and analysis of the first of a pre-selected series 30, 70, . . . , 390. Ardson’s Sudoku Very Hard Puzzles, volume 2, very similar … Continue reading
Posted in Advanced Solving, Puzzle Reviews
Tagged Ardson Sudoku Diabolical, color wrap, coloring traps, LM X-wing, naked triple, XY rail
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Coloring Dominates Very Hard III-15
The review of Moito’s Road to Mastery Sudoku continues with another example of early coloring and its cooperative interactions with the X-panel. The advanced path is similar to that of Very Hard I-35 two posts back, but this time coloring … Continue reading
AIC Slinks Finish Only Extreme 3
This post continues the finishing coloring cluster expansion in Castillo’s Only Extreme 3, via not-both testing of AIC slinks. After extending the blue/green cluster in the North bank via AIC slink, we continue with a second AIC slink adjoining the … Continue reading
Ardson Very Hard v.2 198 and 238
The review of A.D. Ardson Very Hard Puzzles v.2 continues with Ardv2 198 and 238. The sysudokie resolution to 198 is a rerun of 158, but 238 is a classic remote pair example. Ardv2 198 barely escapes the bypass, but … Continue reading
Posted in Advanced Solving, Puzzle Reviews
Tagged A.D. Ardson, naked triple, remote pair, XY-chain
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Ardson Not So Hard Ardv2 118
Ardson Very Hard v.2 118 shows off the basic steps, but can’t quite dodge the consequences. A good Sudoku basic workout, and reminding us of the joys of basic solving. Here is the basic trace, completing box marking with a … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews
Tagged A.D. Ardson, naked quad, naked triple
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