Squishdoku: Place the digits 1 through 9 once each in every 3x3 box, with no repeats in any row or column. Cells on region borders (dashed lines) are simultaneously part of the 3x3 boxes on both sides of the line. Index Lines: The digit in the Nth cell along a teal line (starting from the diamond) indicates the position along the line where the digit N appears. For example, if a diamond cell contains a 3, the third cell along that line must have a 1.