Anti-Knight

The game of Morra (aka Odds and Evens) is pure luck. Not this puzzle!

Given digits can be friends! Who needs lines or dots or cages when you have great big digits? Well, great big digits and a global constraint.

Some people seem fixated on Inuit people having many words for snow, but English does too! From blizzard to whiteout, with flurries, graupel, and drifts, we have so many words. The one this puzzle’s palindrome lines make me think of is sleet.

I regularly publish 9x9 Sudoku puzzles filled with 3x3 blocks of cells, but this one isn’t regular at all. It’s an Anti-Knight Irregular Sudoku!

White Kropki dots are simple, and there are only a couple of them. XV clues are more interesting, and there are a lot of those. Still not enough to make it clear how to solve the puzzle, but that’s because of the global constraint. This puzzle demonstrates an overt bias against knights: no knight’s moves allowed!