diff --git a/pysollib/tk/solverdialog.py b/pysollib/tk/solverdialog.py
index 4979a661..0cb1bef6 100644
--- a/pysollib/tk/solverdialog.py
+++ b/pysollib/tk/solverdialog.py
@@ -22,8 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 # imports
-import sys
-from six.moves import tkinter
+from six.moves import range, tkinter
 
 # PySol imports
 from pysollib.mygettext import _
@@ -33,11 +32,6 @@ from pysollib.mfxutil import KwStruct
 from pysollib.tk.basetkmfxdialog import BaseTkMfxDialog
 from pysollib.ui.tktile.solverdialog import BaseSolverDialog, solver_dialog
 
-
-if sys.version_info > (3,):
-    xrange = range
-
-
 # ************************************************************************
 # *
 # ************************************************************************
@@ -54,7 +48,7 @@ class SolverDialog(BaseSolverDialog, BaseTkMfxDialog):
         n = len(self.gamenames)
         cb_max = int(self.top.winfo_screenheight()//23)
         cb_max = n // (n//cb_max+1)
-        for i in xrange(cb_max, n, cb_max):
+        for i in range(cb_max, n, cb_max):
             om['menu'].entryconfig(i, columnbreak=True)
         return var