diff --git a/.squot-materialize b/.squot-materialize
index 325218c..cd99e39 100644
--- a/.squot-materialize
+++ b/.squot-materialize
@@ -1,64 +1,72 @@
 [
 	SquotTonelMapper {
 		#package : MCPackage {
-			#name : 'BaselineOfSqueakKara'
+			#name : 'SqueakKara'
 		},
 		#path : FSAbsolutePath [
 			'src'
 		]
 	},
-	SquotTonelMapper {
-		#package : MCPackage {
-			#name : 'SqueakKara-Core'
-		},
-		#path : @4
-	},
-	SquotTonelMapper {
-		#package : MCPackage {
-			#name : 'SqueakKara-Tests'
-		},
-		#path : @4
-	},
 	SquotImageMapper {
 		#path : FSAbsolutePath [
 			'assets',
-			'Trunk.png'
+			'Cloverleaf.png'
 		],
 		#encoding : Class [ #PNGReadWriter ]
 	},
 	SquotImageMapper {
 		#path : FSAbsolutePath [
 			'assets',
-			'Cloverleaf.png'
+			'Kara-FacingLeft.png'
 		],
-		#encoding : Class [ #PNGReadWriter ]
+		#encoding : @7
 	},
 	SquotImageMapper {
 		#path : FSAbsolutePath [
 			'assets',
-			'Kara-FacingUp.png'
+			'Kara-FacingDown.png'
 		],
-		#encoding : Class [ #PNGReadWriter ]
+		#encoding : @7
 	},
 	SquotImageMapper {
 		#path : FSAbsolutePath [
 			'assets',
 			'Kara-FacingRight.png'
 		],
-		#encoding : Class [ #PNGReadWriter ]
+		#encoding : @7
+	},
+	SquotTonelMapper {
+		#package : MCPackage {
+			#name : 'SqueakKara-Tests'
+		},
+		#path : FSAbsolutePath [
+			'src'
+		]
+	},
+	SquotTonelMapper {
+		#package : MCPackage {
+			#name : 'BaselineOfSqueakKara'
+		},
+		#path : @16
 	},
 	SquotImageMapper {
 		#path : FSAbsolutePath [
 			'assets',
-			'Kara-FacingDown.png'
+			'Kara-FacingUp.png'
 		],
-		#encoding : Class [ #PNGReadWriter ]
+		#encoding : @7
 	},
 	SquotImageMapper {
 		#path : FSAbsolutePath [
 			'assets',
-			'Kara-FacingLeft.png'
+			'Trunk.png'
 		],
-		#encoding : Class [ #PNGReadWriter ]
+		#encoding : @7
+	},
+	SquotTonelMapper {
+		#package : MCPackage {
+			#name : 'SqueakKara-Core'
+		},
+		#path : @16
 	}
-]
+]
\ No newline at end of file
diff --git a/src/SqueakKara-Core/SKEnvironment.class.st b/src/SqueakKara-Core/SKEnvironment.class.st
index 98f24e0..8ff46f7 100644
--- a/src/SqueakKara-Core/SKEnvironment.class.st
+++ b/src/SqueakKara-Core/SKEnvironment.class.st
@@ -113,7 +113,7 @@ SKEnvironment >> initialize [
 
 {
 	#category : #initialization,
-	#'squeak_changestamp' : 'JJG 6/18/2024 18:47'
+	#'squeak_changestamp' : 'KD 6/23/2024 19:35'
 }
 SKEnvironment >> initializeWithChallenge1 [
 
@@ -123,6 +123,40 @@ SKEnvironment >> initializeWithChallenge1 [
 	self workspace: (SKWorkspace newWithKara: self kara).
 	self executer: (SKExecuter new).
 	(self executer kara) kara: self kara.
+	self executeControls: SKExecuteControls new.
+	executeControls environment: self.
+]
+
+{
+	#category : #initialization,
+	#'squeak_changestamp' : 'KD 6/23/2024 19:40'
+}
+SKEnvironment >> initializeWithChallenge2 [
+
+
+	self grid: (SKGrid newWithExtent: 9 @ 2).
+	self kara: self grid challenge2.
+	self workspace: (SKWorkspace newWithKara: self kara).
+	self executer: (SKExecuter new).
+	(self executer kara) kara: self kara.
+	self executeControls: SKExecuteControls new.
+	executeControls environment: self.
+]
+
+{
+	#category : #initialization,
+	#'squeak_changestamp' : 'KD 6/23/2024 19:59'
+}
+SKEnvironment >> initializeWithChallenge3 [
+
+
+	self grid: (SKGrid newWithExtent: 9 @ 3).
+	self kara: self grid challenge3.
+	self workspace: (SKWorkspace newWithKara: self kara).
+	self executer: (SKExecuter new).
+	(self executer kara) kara: self kara.
+	self executeControls: SKExecuteControls new.
+	executeControls environment: self.
 ]
 
 {
diff --git a/src/SqueakKara-Core/SKExecuteControls.class.st b/src/SqueakKara-Core/SKExecuteControls.class.st
index 5246a02..86afa7c 100644
--- a/src/SqueakKara-Core/SKExecuteControls.class.st
+++ b/src/SqueakKara-Core/SKExecuteControls.class.st
@@ -218,20 +218,20 @@ SKExecuteControls >> initialize [
 
 {
 	#category : #texture,
-	#'squeak_changestamp' : 'EB 6/22/2024 15:02'
+	#'squeak_changestamp' : 'KD 6/23/2024 19:51'
 }
 SKExecuteControls >> pauseTextureFilename [
 
-	^'Trunk.png'
+	^'Kara-FacingUp.png'
 ]
 
 {
 	#category : #texture,
-	#'squeak_changestamp' : 'EB 6/22/2024 14:55'
+	#'squeak_changestamp' : 'KD 6/23/2024 19:51'
 }
 SKExecuteControls >> runTextureFilename [
 
-	^'Trunk.png'
+	^'Cloverleaf.png'
 ]
 
 {
diff --git a/src/SqueakKara-Core/SKGrid.class.st b/src/SqueakKara-Core/SKGrid.class.st
index d38f0c4..e58325b 100644
--- a/src/SqueakKara-Core/SKGrid.class.st
+++ b/src/SqueakKara-Core/SKGrid.class.st
@@ -51,14 +51,14 @@ SKGrid >> addHorizontalLineAt: aCoordinate [
 
 {
 	#category : #texture,
-	#'squeak_changestamp' : 'JJG 6/12/2024 16:40'
+	#'squeak_changestamp' : 'KD 6/23/2024 19:52'
 }
 SKGrid >> addTexture [
 
 	1 to: self gridHeight - 1 do: [:anInteger |
-		self addVerticalLineAt: anInteger].
-	1 to: self gridWidth - 1 do: [:anInteger |
 		self addHorizontalLineAt: anInteger].
+	1 to: self gridWidth - 1 do: [:anInteger |
+		self addVerticalLineAt: anInteger].
 ]
 
 {
@@ -140,6 +140,45 @@ SKGrid >> challenge1 [
 	
 ]
 
+{
+	#category : #challenges,
+	#'squeak_changestamp' : 'KD 6/23/2024 19:54'
+}
+SKGrid >> challenge2 [
+	
+	SKTrunk newInGrid: self at: 3 @ 2.
+	SKTrunk newInGrid: self at: 5 @ 2.
+	SKTrunk newInGrid: self at: 7 @ 2.
+	
+	SKCloverleaf newInGrid: self at: 9 @ 2.
+	
+	^SKKara newInGrid: self at: 1 @ 2.
+	
+]
+
+{
+	#category : #challenges,
+	#'squeak_changestamp' : 'KD 6/23/2024 19:59'
+}
+SKGrid >> challenge3 [
+	
+	SKTrunk newInGrid: self at: 2 @ 1.
+	SKTrunk newInGrid: self at: 3 @ 1.
+	SKTrunk newInGrid: self at: 4 @ 1.
+	SKTrunk newInGrid: self at: 5 @ 1.
+	SKTrunk newInGrid: self at: 6 @ 1.
+	
+	SKTrunk newInGrid: self at: 4 @ 3.
+	SKTrunk newInGrid: self at: 5 @ 3.
+	SKTrunk newInGrid: self at: 6 @ 3.
+	SKTrunk newInGrid: self at: 7 @ 3.
+	SKTrunk newInGrid: self at: 8 @ 3.
+	SKTrunk newInGrid: self at: 9 @ 3.
+	
+	^SKKara newInGrid: self at: 1 @ 2.
+	
+]
+
 {
 	#category : #initialization,
 	#'squeak_changestamp' : 'LK 5/24/2024 11:18'
diff --git a/src/SqueakKara-Core/SKLandingPage.class.st b/src/SqueakKara-Core/SKLandingPage.class.st
index fccd79d..5afe465 100644
--- a/src/SqueakKara-Core/SKLandingPage.class.st
+++ b/src/SqueakKara-Core/SKLandingPage.class.st
@@ -16,21 +16,21 @@ SKLandingPage >> actionExample1 [
 
 {
 	#category : #actions,
-	#'squeak_changestamp' : 'LK 6/21/2024 23:02'
+	#'squeak_changestamp' : 'KD 6/23/2024 19:42'
 }
 SKLandingPage >> actionExample2 [
 
-	SKEnvironment basicNew initializeWithChallenge1.
+	SKEnvironment basicNew initializeWithChallenge2.
 	self delete
 ]
 
 {
 	#category : #actions,
-	#'squeak_changestamp' : 'LK 6/21/2024 23:02'
+	#'squeak_changestamp' : 'KD 6/23/2024 19:42'
 }
 SKLandingPage >> actionExample3 [
 
-	SKEnvironment basicNew initializeWithChallenge1.
+	SKEnvironment basicNew initializeWithChallenge3.
 	self delete
 ]