diff --git a/ruby/bin/gosuhunt b/ruby/bin/gosuhunt
index 303e323..70e8bec 100755
--- a/ruby/bin/gosuhunt
+++ b/ruby/bin/gosuhunt
@@ -7,30 +7,32 @@ require 'minehunt'
 
 class GosuHunt < Gosu::Window
   def initialize( number_of_mines = 20 )
-    @scale = 4
+    @scale = 3
     @sprite_size = 6
 
-    super ( @scale * ( @sprite_size * 16 ) ) + 16 + @scale,
-          ( @scale * ( @sprite_size * 8 ) ) + 20 + 8 + @scale
-
-    self.caption = 'Gosu Hunt'
-
     @number_of_mines = number_of_mines
     @field = MineHunt::Board.new( @number_of_mines )
     @finished = false
     @state = { dead: false, victory: false }
 
     @font = Gosu::Font.new( 20 )
-    @images = { explorer: Gosu::Image.from_blob( @sprite_size, @sprite_size, bits_to_rgbas( '000000001100011110011110001100000000' ) ),
-                dead_explorer: Gosu::Image.from_blob( @sprite_size, @sprite_size, bits_to_rgbas( '100001010010001100001100010010100001' ) ),
-                door: Gosu::Image.from_blob( @sprite_size, @sprite_size, bits_to_rgbas( '010101101010' ) * ( @sprite_size / 2 ) ),
-                mine: Gosu::Image.from_blob( @sprite_size, @sprite_size, bits_to_rgbas( '111111110011100001100001110011111111' ) ),
-                cell: Gosu::Image.from_blob( @sprite_size, @sprite_size, bits_to_rgbas( '1' ) * @sprite_size * @sprite_size ),
-                visited_cell: Gosu::Image.from_blob( @sprite_size, @sprite_size, bits_to_rgbas( '0' ) * @sprite_size * @sprite_size ) }
+    @images = { explorer: Gosu::Image.from_blob( @sprite_size * @scale, @sprite_size * @scale, bits_to_rgbas( '000000001100011110011110001100000000' ) ),
+                dead_explorer: Gosu::Image.from_blob( @sprite_size * @scale, @sprite_size * @scale, bits_to_rgbas( '100001010010001100001100010010100001' ) ),
+                door: Gosu::Image.from_blob( @sprite_size * @scale, @sprite_size * @scale, bits_to_rgbas( '010101101010' * ( @sprite_size / 2 ) ) ),
+                mine: Gosu::Image.from_blob( @sprite_size * @scale, @sprite_size * @scale, bits_to_rgbas( '111111110011100001100001110011111111' ) ),
+                cell: Gosu::Image.from_blob( @sprite_size * @scale, @sprite_size * @scale, bits_to_rgbas( '1' * @sprite_size * @sprite_size ) ),
+                visited_cell: Gosu::Image.from_blob( @sprite_size * @scale, @sprite_size * @scale, bits_to_rgbas( '0' * @sprite_size * @sprite_size ) ) }
+
+    super ( ( @sprite_size + 1 ) * @field.width * @scale ) + @scale,
+          ( ( @sprite_size + 1 ) * @field.height * @scale ) + @scale + 20
+
+    self.caption = 'Gosu Hunt'
   end
 
   def bits_to_rgbas( bits )
-    bits.gsub( '0', "\0\0\0\0" ).gsub( '1', "\255\255\255\255" )
+    bits.scan(/.{#{@sprite_size}}/).map do |line|
+      line.gsub( '0', "\0\0\0\0" * @scale ).gsub( '1', "\255\255\255\255" * @scale ) * @scale
+    end.join
   end
 
   def new_level
@@ -104,11 +106,9 @@ class GosuHunt < Gosu::Window
             @images[:mine]
           else
             @images[:cell]
-          end ).draw ( @scale * ( x * @sprite_size ) ) + x + @scale,
-                     ( @scale * ( y * @sprite_size ) ) + 20 + y + @scale,
-                     0,
-                     @scale,
-                     @scale
+          end ).draw ( ( @sprite_size + 1 ) * x * @scale ) + @scale,
+                     ( ( @sprite_size + 1 ) * y * @scale ) + @scale + 20,
+                     0
       end
     end
   end