Patches answer. #239
Shape positions
Rows and columns below start at 1, from the top left.
- Shape D: top-left row 1, column 1; 3 rows × 1 columns (3 cells).
- Shape A: top-left row 1, column 2; 1 rows × 6 columns (6 cells).
- Shape E: top-left row 2, column 2; 2 rows × 1 columns (2 cells).
- Shape B: top-left row 2, column 3; 4 rows × 2 columns (8 cells).
- Shape C: top-left row 2, column 5; 2 rows × 3 columns (6 cells).
- Shape F: top-left row 4, column 1; 2 rows × 2 columns (4 cells).
- Shape G: top-left row 4, column 5; 1 rows × 3 columns (3 cells).
- Shape H: top-left row 5, column 5; 1 rows × 2 columns (2 cells).
- Shape I: top-left row 5, column 7; 2 rows × 1 columns (2 cells).
- Shape J: top-left row 6, column 1; 2 rows × 3 columns (6 cells).
- Shape K: top-left row 6, column 4; 1 rows × 3 columns (3 cells).
- Shape L: top-left row 7, column 4; 1 rows × 4 columns (4 cells).
Why it works
The official regions cover every cell once and satisfy each clue’s size or shape constraint.
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