Theme: Sum of 1 & 2 (for Randy Rogers)
Author/Opus: This is the 146th puzzle from our contributing puzzlemaster Serkan Yürekli.
Rules: Place the digits 1-9 in some of the cells, so that no digit is repeated in any row or column. Numbers on the outside of the grid indicate the sums of adjacent digit groups in that row or column, in order. Each sum is separated by at least one unused cell.
Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 10th row from left to right. Use a capital X for empty cells.
Time Standards (highlight to view): Grandmaster = 18:00, Master = 32:00, Expert = 1:04:00
Note: Follow this link for other less common Number Placement puzzles.