Logic Masters Deutschland e.V.

Mini-Colossal Octoquadri III: Sukoro

Part of a greater collaboration with MaizeGator, in which we are setting pencil puzzle octoquadri hybrids in the "colossal sudoku" format.

Puzzles in our series so far:
Mini-Colossal Octoquadri I: Loop 12 (MaizeGator).
Mini-Colossal Octoquadri II: U-Bahn (sfushidahardy).
Mini-Colossal Octoquadri III: Sukoro (sfushidahardy).

• Mega-Sukoro: Place a digit from 1 through 4 into some of the cells of the 12x12 grid. Some digits are given. Each digit is equal to the number of (up to four) orthogonally adjacent cells that also contain a digit. Identical digits cannot be orthogonally adjacent. All digits form an orthogonally contiguous area.
• Octoquadri + Mini-Sukoro: Place 8 of the digits from 1 through 9 in the 4x4 grid, so that every digit occurs twice, and there are no repeats in any row, column, or box. Place the remaining digit in the "Leftover" cell. Additionally, any digits from 1 through 4 are equal to the number of (up to four) orthogonally adjacent cells that also contain a digit from 1 through 4, and all such digits form an orthogonally contiguous area.
• Interaction: Each cell in the Octoquadri grid corresponds to a 3x3 box in the 12x12 Sukoro grid. A digit N in an Octoquadri cell indicates that there are N digits in the corresponding 3x3 box.

I hope you enjoy the puzzle!

A partially resolved example grid to demonstrate the rules.