diff --git a/6-MonteCarloGeometryProcessing/random.png b/7-kdtree/random.png
similarity index 100%
rename from 6-MonteCarloGeometryProcessing/random.png
rename to 7-kdtree/random.png
diff --git a/6-MonteCarloGeometryProcessing/randomdiff.png b/7-kdtree/randomdiff.png
similarity index 100%
rename from 6-MonteCarloGeometryProcessing/randomdiff.png
rename to 7-kdtree/randomdiff.png