Inverse Double Choco
Inverse Double Choco is a variation of the Double Choco puzzle invented by Anurag Sahay. It offers a playful inversion of the classic ruleset, introducing new logical elements that are sometimes absent in the original formulation.
The variant was first published by the author in July 2024. In contrast to classic Double Choco, where paired regions are identical, Inverse Double Choco requires each pair of regions to be of the same size but of different shapes. This reversal significantly alters the nature of deductions.
As a result, solvers must focus more on shape construction and comparative reasoning, rather than size differentiation alone. The inversion leads to fresh solving patterns and expands the expressive possibilities of the Double Choco family.
The variant was first published by the author in July 2024. In contrast to classic Double Choco, where paired regions are identical, Inverse Double Choco requires each pair of regions to be of the same size but of different shapes. This reversal significantly alters the nature of deductions.
As a result, solvers must focus more on shape construction and comparative reasoning, rather than size differentiation alone. The inversion leads to fresh solving patterns and expands the expressive possibilities of the Double Choco family.
Rules
Divide the grid along the grid lines into regions. Each region must contain one orthogonaly connected area of white cells and one area of shaded cells. The pair of areas must be of the same size, but different shapes. A number indicates how many cells of one color the region contains. A region may contain several numbers - in this case all numbers must be equal.
Click to see the answer.