RAT RUN 22: Copyrat
(Published today, 03:35 by marty_sears)
- Normal sudoku rules apply.
- AIM OF EXPERIMENT: Finkz and Phinx must both reach cupcakes by finding a path through the maze. The paths must not visit any cell more than once, cross themselves or each other, share cells, or pass through any thick maze walls.
- As well as moving orthogonally, Finkz and Phinx may move diagonally if there's a 2x2 space in which to do so, but may never pass diagonally through a round wall-spot on the corner of a cell.
- COPYCAT CELLS: Find nine copycat cells in the maze; one in each row, column and 3x3 box, and each containing a different digit. The value of a copycat cell equals the digit in the cell that is 180° rotationally opposite it in the grid. Eg: if r1c3 is a 6 and r9c7 is a copycat cell, then r9c7 will have a value of 6, regardless of what digit it contains.
- BLACKCURRANTS: If two cells are joined by a blackcurrant then the value of one is double the value of the other.
- REDCURRANTS: If two cells are joined by a redcurrant then one has an even value and the other has an odd value.
- GRAPES: If two cells are joined by a grape, their values have a difference of at least 5.
- TEST CONSTRAINT: In this experiment, in any 3x3 box, the total value of the cells visited by Finkz is the same as the total value of the cells visited by Phinx. (This total must be determined for each box.)
Solution code: Cells visited by Finkz or Phinx in row 5 from left to right
Comments
today, 16:22 by Franjo
Thank you so much for creating and sharing this beautiful rat paths. Another great puzzle of yours that made my day.
today, 14:10 by NotThatKindOfDoctor
As someone who typically avoids >2-star difficulty puzzles, I'll now treat myself to a cupcake in delightful celebration. Fantastic.
today, 14:08 by QuiltyAsCharged
Even by the high standards of Rat Run, this is exceptional!
today, 10:54 by homuroll
Spectacular puzzle, got somewhat stuck closer to the end placing the last 3 copycat cells. Very nice logic!
today, 09:35 by 26rfeng
Very exciting to solve, and epic disambiguation at the end
today, 05:17 by chinesemaster
I was gonna go to bed early tonight, but not happening once I saw this puzzle! Well worth it!
