diff --git a/Plugins/Nautilus.Game.Arcade/src/nautilus/game/arcade/game/games/mineware/challenges/ChallengeBlockRunner.java b/Plugins/Nautilus.Game.Arcade/src/nautilus/game/arcade/game/games/mineware/challenges/ChallengeBlockRunner.java
index 40fb878b9..71f726107 100644
--- a/Plugins/Nautilus.Game.Arcade/src/nautilus/game/arcade/game/games/mineware/challenges/ChallengeBlockRunner.java
+++ b/Plugins/Nautilus.Game.Arcade/src/nautilus/game/arcade/game/games/mineware/challenges/ChallengeBlockRunner.java
@@ -8,8 +8,12 @@ import mineplex.core.common.util.UtilInv;
 import mineplex.core.common.util.UtilParticle;
 import mineplex.core.common.util.UtilParticle.ParticleType;
 import mineplex.core.common.util.UtilParticle.ViewDist;
+import mineplex.core.common.util.C;
+import mineplex.core.common.util.F;
+import mineplex.core.common.util.UtilPlayer;
 import mineplex.core.common.util.UtilServer;
 import mineplex.core.common.util.UtilShapes;
+import mineplex.core.common.util.UtilTextMiddle;
 import nautilus.game.arcade.game.games.mineware.Challenge;
 import nautilus.game.arcade.game.games.mineware.MineWare;
 
@@ -133,13 +137,30 @@ public class ChallengeBlockRunner extends Challenge
 
 		if(bottomVoid1.isEmpty() && bottomVoid2.isEmpty() && bottomVoid3.isEmpty())
 		{
+			UtilTextMiddle.display("", C.cRed + "You can't place blocks that far from the ground.", 5, 40, 5);
 			blockBreakEffect(block);
-			// Cancelling so the player doesn't block farm.
 			event.setCancelled(true);
 			return;
 		}
-
+		
 		// Second Check
+		// Checking if the player is trying to trap another player.
+		
+		for (Player others : Host.GetPlayers(true))
+		{
+			if (others.equals(player))
+				continue;
+			
+			if (block.getLocation().add(0.5, 0.5, 0.5).distanceSquared(others.getLocation()) <= 1.5)
+			{
+				UtilTextMiddle.display("", C.cRed + "You can't place blocks near other players.", 5, 40, 5);
+				blockBreakEffect(block);
+				event.setCancelled(true);
+				return;
+			}
+		}
+
+		// Third Check
 		// Checking if the player is trying to make a tower up to the sky.
 
 		Block bottom1 = player.getLocation().getBlock().getRelative(BlockFace.DOWN);
@@ -164,6 +185,7 @@ public class ChallengeBlockRunner extends Challenge
 				blockBreakEffect(bottom2);
 				blockBreakEffect(bottom3);
 
+				UtilTextMiddle.display("", C.cRed + "You can't build a tower that high.", 5, 40, 5);
 				return;
 			}
 		}
@@ -184,6 +206,9 @@ public class ChallengeBlockRunner extends Challenge
 
 	private void blockBreakEffect(Block block)
 	{
+		if (block.getType() == Material.GRASS)
+			return;
+
 		UtilParticle.PlayParticle(ParticleType.BLOCK_DUST.getParticle(block.getType(), block.getData()), block.getLocation(), 0.0F, 0.0F, 0.0F, 0,
 				10, ViewDist.NORMAL, UtilServer.getPlayers());
 		block.getWorld().playEffect(block.getLocation(), Effect.STEP_SOUND, block.getTypeId());