diff --git a/rogueviz/impossible-ring.cpp b/rogueviz/impossible-ring.cpp
index ddcc7fab..f6e8c6fe 100644
--- a/rogueviz/impossible-ring.cpp
+++ b/rogueviz/impossible-ring.cpp
@@ -290,7 +290,7 @@ auto hchook = addHook(hooks_drawcell, 100, draw_ptriangle)
 
 + addHook(hooks_o_key, 80, o_key)
 
-+ addHook(rvtour::hooks_build_rvtour, 152, [] (vector<tour::slide>& v) {
++ addHook(rvtour::hooks_build_rvtour, 167, [] (vector<tour::slide>& v) {
   using namespace tour;
   v.push_back(
     tour::slide{"non-isotropic geometries/Impossible architecture in Nil/impossible ring", 18, LEGAL::NONE | QUICKGEO, 
diff --git a/rogueviz/noniso-honeycombs.cpp b/rogueviz/noniso-honeycombs.cpp
index 46a43438..47e19595 100644
--- a/rogueviz/noniso-honeycombs.cpp
+++ b/rogueviz/noniso-honeycombs.cpp
@@ -146,6 +146,6 @@ void honey(vector<tour::slide>& v) {
 
   }
 
-auto hooks  = addHook(rvtour::hooks_build_rvtour, 147, honey);
+auto hooks  = addHook(rvtour::hooks_build_rvtour, 163, honey);
 
 } }
diff --git a/rogueviz/snow.cpp b/rogueviz/snow.cpp
index 44ae06bd..603b8d72 100644
--- a/rogueviz/snow.cpp
+++ b/rogueviz/snow.cpp
@@ -236,7 +236,7 @@ auto hchook = addHook(hooks_drawcell, 100, draw_snow)
   })
 #endif
 
-+ addHook(rvtour::hooks_build_rvtour, 140, [] (vector<tour::slide>& v) {
++ addHook(rvtour::hooks_build_rvtour, 161, [] (vector<tour::slide>& v) {
   v.push_back(tour::slide{
     cap+"snowball visualization", 10, tour::LEGAL::NONE | tour::QUICKSKIP,
     "Non-Euclidean visualizations usually show some regular constructions. Could we visualize the geometries themselves? Let's distribute the snowballs randomly."
diff --git a/rogueviz/triangle.cpp b/rogueviz/triangle.cpp
index 2043217c..0e376d4d 100644
--- a/rogueviz/triangle.cpp
+++ b/rogueviz/triangle.cpp
@@ -549,7 +549,7 @@ auto hchook = addHook(hooks_drawcell, 100, draw_ptriangle)
   return 0;
   })
 
-+ addHook(rvtour::hooks_build_rvtour, 151, [] (vector<tour::slide>& v) {
++ addHook(rvtour::hooks_build_rvtour, 166, [] (vector<tour::slide>& v) {
   using namespace tour;
 
   v.push_back(