Logic Masters Deutschland e.V.

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This puzzle was made for Scojo's 2025 Impostor event. This is a puzzle I set "imitating my own style", while mnasti2 also set a puzzle in my style, and solvers were tasked with guessing which was my real puzzle. I hope you enjoy it!

• This puzzle consists of a 12x18 Myopia and a 6x6 Sudoku, to be solved simultaneously.
• Cave Sudoku: Place the digits 1~6 once each in every row, column, and box. Shade some cells so that all unshaded cells are orthogonally connected, and every orthogonally connected group of shaded cells touches the edge of the grid. A cell with a circle is always unshaded, and its digit counts the number of unshaded cells that can be seen in all orthogonal directions combined, including itself. Shaded cells obstruct vision.
• Myopia: Draw a loop which travels along edges of the grid, and does not branch or cross itself. Arrows point toward the loop segments closest to the clue. If a cell is clued by an arrow, then all possible arrows are given for that cell.
• Interaction: Each Sudoku cell corresponds to a 2x3 area in the Myopia grid. The digit placed in an unshaded cell counts the number of cells inside the loop (from 1 to 6) in the respective 2x3 area of the Myopia. Conversely, digits in shaded cells count the number of cells outside the loop instead.