oscillation, ripple, squeeze warp. curve, camber . wavy, waving distortion on checkered, chequered, chess board pattern.

abstract amorphous asymmetry background bend billow billowy black board camber checkered checks chequered chess curve curvy deform deformation deformed distortion element flex flexible flexure free grayscale greyscale grid horizontal illustration irregular miscellaneous monochrome monocrome mosaic opart oscillate oscillation pattern ripple royalty sinuous skew squares squeeze squiggle symmetric symmetry undulate undulating vector warp wave waving wavy wiggle wriggle