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Category Archives: Puzzle Reviews
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 FTSPAH, review table, Sysudoku basic
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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 coloring wrap, FTSPAH, hidden dublex, hidden pair
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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 3-fill, FTSPAH, hidden unique rectangle, XY ANL
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The FTSPAH Review Begins With a Tour
Here I report on 4 and 24, the first two of 10 puzzles selected for the Sysudoku review of the FTSPAH puzzle book. Starting grids were displayed at the end of last week’s post. I also explain a few things … Continue reading
Posted in Advanced Solving, Basic Solving Procedures, Puzzle Reviews
Tagged 3-fill, coloring, FTSPAH, X-chain ANL, XY ANL, XY nice loop
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Master Class 120 Completes the Update
This post concludes the review update of Tom Sheldon’s Master Class Sudoku and offers an amended review table. The bypass on Master Class 120 is strong enough to keep line marking fill strings short. There are two naked singles, one … Continue reading
Posted in Advanced Solving, Puzzle Reviews, Sheldon
Tagged Extended XY ANL, hidden UR type 1, Sudoku Master Class, Tom Sheldon
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PencilPress 81 and Master Class 110
This post concludes the review of PencilPress’ 500+ Sudoku Extreme Puzzles, and adds another puzzle to the review update of Tom Sheldon’s Master Class Sudoku. T The final score was PencilPress Extreme 0, Sysudoku Bypass 10. If “Extreme” means requiring … Continue reading
