Logic Masters Deutschland e.V.

• Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
• Thermometers: Along each thermometer, digits must increase from bulb to tip.
• Yin Yang: Shade some cells so that all shaded cells are orthogonally connected and all unshaded cells are also orthogonally connected. No 2x2 area may be entirely shaded or unshaded. All thermometers must be shaded.

• Each digit has two properties. The first property is being shaded or unshaded according to Yin Yang rules. The second property is being low (1,2,3), medium (4,5,6) or high (7,8,9).
• Each cell that is directly connected to two cells in the row above it by a pink line is considered a child of those two cells (the parents).
• Each child can be formed by taking a property of one parent and taking the other property of the other parent.
• For example: If a child has parents that are a shaded 2 and an unshaded 5, the child could either be a shaded 4, 5, or 6, or it could be an unshaded 1, 2, or 3. If a child has parents that are a shaded 8 and a shaded 6, the child will be shaded either way, and could be any digit from 4-9.

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