diff --git a/2023/ruby/day_05.rb b/2023/ruby/day_05.rb
index a311219..c9666dc 100644
--- a/2023/ruby/day_05.rb
+++ b/2023/ruby/day_05.rb
@@ -81,9 +81,6 @@ p dests.map(&:begin).min
 #   }
 #   .min
 
-# seeds = seeds
-#   .each_slice(2)
-#   .map {|start, length| (start...start+length) }
 reversed = mappings
   .map {|mapping|
     Mapping.new(
@@ -98,9 +95,6 @@ reversed = mappings
 #     seeds.any? { _1.cover?(source) }
 #   }
 
-# seeds = seeds
-#   .each_slice(2)
-#   .map {|start, length| (start...start+length) }
 lowest = seeds
   .flat_map(&:minmax)
   .filter_map {|seed|