Logic Masters Deutschland e.V.

This is the first of three puzzles using this rule set.

Rules

Normal sudoku rules apply. Place one (and only one) "renbanomino" (an orthogonally connected group of shaded cells that contains a consecutive set of digits, where one of the shaded digits is circled and indicates its size) in each of the 9 sudoku boxes such that across the entire grid:

• All shaded cells are orthogonally connected.
• All unshaded cells are orthogonally connected.
• No 2x2 region contains all shaded or all unshaded cells.

Play

Play on SudokuPad

Please leave a comment if you complete this puzzle.

Need Help?

If you need help understanding "ominos" in general, watch the following:

An Introduction to Ominos

The following example illustrates what a completed 6x6 grid might look like obeying the yin-yang and circled size rules: