Selection of mesh faces based on a checkerboard pattern

Hello Guys

Can you please tell me how to select the faces of the mesh in a checkerboard pattern relative to the control point?

I found similar topics but the method presented there does not work for me


mesh chess.3dm (63.5 KB)

Not sure if I understand correctly but I think you want to select faces within a certain distance from your control point and checkerboard the filtered faces?

checkerboard.gh (21.9 KB)

PS: the input mesh is internalised in the Grasshopper definition.

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