diff --git a/pysollib/games/spider.py b/pysollib/games/spider.py
index eefdd504..ccbbc419 100644
--- a/pysollib/games/spider.py
+++ b/pysollib/games/spider.py
@@ -329,7 +329,7 @@ class Rachel(pysollib.game.StartDealRowAndCards, RelaxedSpider):
 # * Scorpion Tail - building down by alternate color
 # ************************************************************************
 
-class Scorpion_RowStack(Yukon_SS_RowStack, Spider_RowStack):
+class Scorpion_RowStack(Spider_RowStack, Yukon_SS_RowStack):
     canDropCards = Spider_RowStack.canDropCards
 
 
diff --git a/pysollib/stack.py b/pysollib/stack.py
index 3db6f8cf..ad029fdd 100644
--- a/pysollib/stack.py
+++ b/pysollib/stack.py
@@ -2423,6 +2423,7 @@ class SequenceStack_StackMethods:
         return self._isSequence(cards)
 
     def _isMoveableSequence(self, cards):
+        # import pdb; pdb.set_trace()
         return self._isSequence(cards)
 
     def acceptsCards(self, from_stack, cards):
diff --git a/scripts/gen_individual_importing_tests.py b/scripts/gen_individual_importing_tests.py
index 81b3201f..01ceb7c8 100644
--- a/scripts/gen_individual_importing_tests.py
+++ b/scripts/gen_individual_importing_tests.py
@@ -219,6 +219,7 @@ for ver in [2, 3]:
             'pysol_tests.import_file1',
             'pysol_tests.latin1_conv_unit',
             'pysol_tests.ms_deals1',
+            'pysol_tests.scorpion_canMove',
             ]:
         open(os.path.join(".", "tests", "unit-generated",
                           'test__%s__v%d.py' % (mod, ver)
diff --git a/tests/lib/pysol_tests/scorpion_canMove.py b/tests/lib/pysol_tests/scorpion_canMove.py
new file mode 100644
index 00000000..15b5679f
--- /dev/null
+++ b/tests/lib/pysol_tests/scorpion_canMove.py
@@ -0,0 +1,102 @@
+# Written by Shlomi Fish, under the MIT Expat License.
+
+import unittest
+from pysollib.acard import AbstractCard
+import pysollib.stack
+from pysollib.games.spider import Scorpion_RowStack
+
+
+class MockItem:
+    def __init__(self):
+        pass
+
+    def tkraise(self):
+        return
+
+    def addtag(self, nouse):
+        return
+
+
+class MockCanvas:
+    def __init__(self):
+        self.xmargin = self.ymargin = 50
+
+
+class MockImages:
+    def __init__(self):
+        self.CARDW = self.CARDH = self.CARD_YOFFSET = 50
+
+
+class MockOpt:
+    def __init__(self):
+        self.randomize_place = False
+
+
+class MockApp:
+    def __init__(self):
+        self.images = MockImages()
+        self.opt = MockOpt()
+
+
+class MockTalon:
+    def __init__(self, g):
+        self.cards = [
+            AbstractCard(1000+r*100+s*10, 0, s, r, g)
+            for s in range(4) for r in range(13)]
+        for c in self.cards:
+            c.item = MockItem()
+
+
+class MockGame:
+    def __init__(self):
+        self.app = MockApp()
+        self.talon = MockTalon(self)
+
+        self.allstacks = []
+        self.stackmap = {}
+        self.canvas = MockCanvas()
+        self.foundations = [
+            pysollib.stack.SS_FoundationStack(0, 0, self, s) for s in range(4)]
+        self.rows = [pysollib.stack.Yukon_SS_RowStack(0, 0, self)
+                     for s in range(8)]
+        self.reserves = [
+            pysollib.stack.Yukon_SS_RowStack(0, 0, self) for s in range(4)]
+        self.preview = 0
+
+
+def _empty_override(*args):
+    return True
+
+
+pysollib.stack.MfxCanvasGroup = _empty_override
+
+
+class Mock_S_Game:
+    def __init__(self):
+        self.s = MockGame()
+
+    def flipMove(self, foo):
+        pass
+
+    def moveMove(self, cnt, frm, to, frames=0):
+        c = frm.cards.pop()
+        c.face_up = True
+        to.addCard(c)
+        pass
+
+
+class MyTests(unittest.TestCase):
+    def test_import(self):
+        g = MockGame()
+        stack = Scorpion_RowStack(0, 0, g)
+        cards = [
+            AbstractCard(1000+r*100+s*10, 0, s, r, g)
+            for s, r in [(2, 5), (3, 7), (2, 7), (2, 0),
+                         (2, 3), (2, 4), (1, 4)]
+            ]
+        for c in cards:
+            c.face_up = True
+            c.item = MockItem()
+            stack.addCard(c)
+        stack.canMoveCards(stack.cards[6:])
+        self.assertTrue(stack)