Monthly Archives: May 2020

Puzzleproof’s Sudoku Extreme Is Good Basic

Posted on May 26, 2020 by Sudent

Finishing with no advanced moves, the Extreme Sudoku 2 collection proves less than extreme. However, the collection, including the last three selected puzzles, 154, 175 and 196, have many worthwhile examples of basic slink marking in action. In the Pzlpfx2 … Continue reading →

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Double Sweep Lessons From 112 and 133

Posted on May 19, 2020 by Sudent

Two rare double sweeps in the bypass show up this post. In Puzzleproof Extreme 122, it’s a 5-fill line; in 133, a 5-fill box. In each, 5 cells are free and two are claimed by two values, leaving a 3-fill. … Continue reading →

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Can Box Marking Be Extreme?

Posted on May 12, 2020 by Sudent

This post continues the Sysudoku Basic review of Puzzleproof Extreme Sudoku 2, with reports on 70 and 91. In the basic trace of Pzlpf2 70, there is the typical heavy bypass, and collapse in the 9: box marking list. The … Continue reading →

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Puzzleproof’s Extreme 2 is Box Marking Level

Posted on May 5, 2020 by Sudent

This begins a four post review of Puzzleproof’s Extreme Sudoku 2. The pre-selected puzzles are every 23rd puzzle starting with 7. All of the puzzles are solved in the bypass or in box marking. The review provides full tracing, and … Continue reading →

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