The orange box is the step that just happened. The small numbers count how often each box has been visited.
Click anywhere on the curve to choose the starting solution. The bands under the curve are N1 ⊂ N2 ⊂ N3 …: how far k random moves can reach from x.
Filled marker = the candidate was better, so k resets to 1. Hollow = no improvement, so k moves up one level.
Runs BVNS, VND and GVNS on this problem with the same seed and settings, then shows the best cost each one reached.