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Theme: Corners

Rules: Standard Sudo-Kurve rules.

Answer String: Enter the “row” marked A, followed by a comma, followed by the “row” marked B.

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:30, Expert = 5:00

There is no Doctor’s Note this week.

Seventh in a series with puzzle solving tips. This time with advice on exploring unusual puzzle geometries such as the Saturday Sudo-Kurve.

When you’ve solved enough 3d Sudoku or Sudo-Kurve puzzles or other unique geometries (as in Sudoku Masterpieces), you’ve probably recognized there are sometimes cells or sets of cells that are much more constrained than others in the construction. This Sudo-Kurve grid, which I used in Sudoku Cup 3 and only one other time since, has some secrets to observe before getting too deep into any puzzle.

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Theme: Totally Twisted: a challenging grid shape.

Rules: Standard Sudo-Kurve rules.

Answer String: Enter the “row” marked A, followed by a comma, followed by the “row” marked B.

Time Standard: Sudo-Kurve Grandmaster = 9:00, Master = 15:00, Expert = 30:00

Note: Advice on solving this puzzle has now been posted in “Ask Dr. Sudoku #7”

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Theme: Happy Valentine’s Day – a heart of given numbers inside a heart-shaped grid.

Rules: Standard Sudo-Kurve rules.

Answer String: Enter the “row” marked A, followed by a comma, followed by the “row” marked B.

Time Standard: Sudo-Kurve Grandmaster = 4:00, Master = 6:15, Expert = 12:30

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Theme: A simple start: a Sudo-Kurve with just three regions.

Rules: Standard Sudo-Kurve rules.

Answer String: Enter the “row” marked A, followed by a comma, followed by the “row” marked B.

Time Standard: Sudo-Kurve Grandmaster = 0:45, Master = 1:20, Expert = 2:40