Paint By 3/en

Instructions

Paint some cells to reveal a picture. Clues outside the grid indicate the separate blackened cell blocks in the corresponding rows and columns, without revealing their lengths. If there is more than one blackened block in a certain row or column, there must be at least one empty cell between the blocks. The blocks whose lengths are divisible by 3 are given in grey. The blocks whose lengths are not divisible by 3 are given in white.