Home MySpace MySpace Code Blog E-books SuDoku Evolution Squares Circles Cubes Dials Wall Stars Pentagram Hexagram Septagram Octagram Advanced Stars Advanced Toroidal Diamond Cubic Steps Impossible Flexidoku

Fill in the numbers so that every region contains the numbers 1 to 16. This board has four types of region. All the regions are highlighted in red below. There are a total of 36 regions. Rows Columns a Columns b Mini-Grids