diff --git a/Canvas.cpp b/Canvas.cpp
index 28d813c..556dbf6 100644
--- a/Canvas.cpp
+++ b/Canvas.cpp
@@ -451,17 +451,21 @@ void Canvas::mouseMoveEvent(QMouseEvent* event)
     if (draggedPoint) {
         QPointF pos = UCS_POSITION - dragOffset;
 
-        // Обновляем все связанные точки (совпадающие, горизонтальные, вертикальные)
-        for (Point* pair : points) {
-            if (areCoincident(draggedPoint, pair)) {
-                *pair->x = pos.x();
-                *pair->y = pos.y();
-            }
-            if (areHorizontalVertical(draggedPoint, pair, true)) { // vertical
-                *pair->x = pos.x();
-            }
-            if (areHorizontalVertical(draggedPoint, pair, false)) { // horizontal
-                *pair->y = pos.y();
+        auto coincidentGroup = getCoincidentGroup(draggedPoint);
+
+        for (Point* pt : coincidentGroup) {
+            *pt->x = pos.x();
+            *pt->y = pos.y();
+        }
+
+        for (Point* basePt : coincidentGroup) {
+            for (Point* other : points) {
+                if (areHorizontalVertical(basePt, other, true)) {
+                    *other->x = pos.x();
+                }
+                if (areHorizontalVertical(basePt, other, false)) {
+                    *other->y = pos.y();
+                }
             }
         }
 
@@ -633,4 +637,17 @@ QPointF Canvas::screenToLogical(const QPointF& screenPos) const
     logical.ry() = -logical.ry();
 
     return logical;
-}
\ No newline at end of file
+}
+
+std::vector<Point*> Canvas::getCoincidentGroup(Point* p)
+{
+    std::vector<Point*> group;
+    group.push_back(p);
+
+    for (Point* other : points) {
+        if (other != p && areCoincident(p, other)) {
+            group.push_back(other);
+        }
+    }
+    return group;
+}
diff --git a/Canvas.h b/Canvas.h
index ed16485..e3b9ba6 100644
--- a/Canvas.h
+++ b/Canvas.h
@@ -69,6 +69,7 @@ private:
 #endif
 
     QPointF screenToLogical(const QPointF& screenPos) const;
+    std::vector<Point*> getCoincidentGroup(Point* p);
     // ====================== Методы поиска и выбора ======================
 
     /// Найти линию под указанной позицией