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Patches answer. #237

Solved patches board for puzzle 237. The complete text solution follows below.

Shape positions

Rows and columns below start at 1, from the top left.

  1. Shape A: top-left row 1, column 1; 3 rows × 1 columns (3 cells).
  2. Shape B: top-left row 1, column 2; 3 rows × 3 columns (9 cells).
  3. Shape C: top-left row 1, column 5; 2 rows × 2 columns (4 cells).
  4. Shape D: top-left row 3, column 5; 4 rows × 2 columns (8 cells).
  5. Shape E: top-left row 4, column 1; 3 rows × 3 columns (9 cells).
  6. Shape F: top-left row 4, column 4; 3 rows × 1 columns (3 cells).

Why it works

Six shapes fill this 6 × 6 board. B occupies rows 1–3, columns 2–4, and E occupies rows 4–6, columns 1–3: two 3 × 3 squares. A and F are the three-cell vertical strips beside those squares. On the right, C is the top 2 × 2 square and D is the 4 × 2 rectangle below it. The areas 3 + 9 + 4 + 8 + 9 + 3 cover all 36 cells exactly once. The original hidden clues were not recorded.

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