Sunday 15 November 2015

Daily League #47: Palindrome Or Rising Sudoku

Here is the third puzzle in my 'A or B Sudoku' series. This time it is a combination between Palindrome Sudoku and Rising Sudoku. Rising Sudoku might be a bit unfamiliar. It's basically a Thermometer Sudoku without a bulb to indicate the low point of the line. I saw them more often years ago, but I think now Thermometer Sudoku has become a bit more the go-to genre.
I wasn't sure if this combination would work very well. It was a bit hard to figure out how to get a start in this Sudoku, without giving away too many givens. The construction was a bit troublesome as I ran into situations without a solution far too often. The problem was that a lot of areas wouldn't resolve themselves early in the solve and by the time they did, there would be a contradiction with clues I had laid out in the meantime. In the end, I think the puzzle worked out nicely.

Rules of Sudoku

In this Sudoku a grey line is either a Palindrome Sudoku or a Rising Sudoku clue. In a Palindrome Sudoku clue the digits along the grey line form a Palindromic sequence; the sequence can be read the same from either end. In a Rising Sudoku clue, the digits form a rising sequence from one end to the other. This sequence does not have to be an arithmetic sequence. Different grey lines can conform to different rules.

Click to enlarge

No comments:

Post a Comment