diff --git a/.aoc-cache/6.txt b/.aoc-cache/6.txt
new file mode 100644
index 0000000..534b221
--- /dev/null
+++ b/.aoc-cache/6.txt
@@ -0,0 +1 @@
+srjsssgppnssqzszmzjmjdmmqwqcwqccslsjswjssgbsgsnggqtqnnjznndtndnhddfldfdsfswsjsjjptjpttlwlccpnpgngcncnscncsnnwrwmwggsgdgssvbsstzsstqqrjqqlsqlsqscschhclhccznzcnnzzqppjbpjjqzzbwbqqzdqdjjqtjtbtgtqgtgdgwwsjjbwjjzssrsvsttgqtgglgplgpllcrcncssbrbgrbrllsqlsltthshrrnddwzdzdbbrppdvdqvvpvdvdsslbbmnbnjjrdrnntzzftzftttrsshpspvvrzzqzwzhzszbzjjwqwvqqglgflfwfrfprpddfvdffhzztwtppwwwztzsznzmnnbvbbtqqdhqdqdfffnjnmnlmljmlmnlnddzbbdgdqdnqqtjjtnthttvwwtrwwwgffqcfchfcfwcczhhgjhghpgpwgwffhghzghhtftntnnmlnmlmddqbbfwbfwbwvvfssrggptpltpllbcbzczzlccjgcgvcczjzvvvdtvdvqdqwdqdvdjvddjfdjjqmmfgfsftfzfwzwzfftmfmmqdqccjqcqwwflwlccpssvzzzbnbjnbjjgtgpttbwbrbwrwvrrwccgrgrvvpjvvznvvhddtdldpldppmlplltdllhqhpqhqqbpptgpgjgqjgjffvfdvdttsrsllhzlzrrdrnrjrddqbbjrrvrsstgsttjqjhjbhhnmndmmnrmnnrggmtgmmhshjjfqjjtqtstpstppggtzzrsrwwqffvzvzvqqggqsqtstszttpvtvvvddcncvncvchhnsnpsnnlmnnmqnqjjfwfccmwmbwbswbswwghhzrrptptbbjbtjjgdjgjrgrwgwlglblbnlnbbwnnpbnbmbtmtvvhjjlwlhhszslldwlwdllhjhghqghhqpplhhtjhhnhqhlhjhmmlhlmmrpptvvcczfcccwgcccpgpspdpccfhchffbjbzzwppfbbstbtltpllcssnnctnnqcqhhclhccvlvlffnjjwbwfbfttwvvdvnnnsrstrtmtfthtzzcvzvhzzpmpfpmmmwggdbdqdbbjnbbdqbbrnnnprrwbbcwbbpjjprjjzzvwwvrrthhqvhvnhhzmzszrszsjssclcjjbhjbhjbhjbjhhzbbzttnrnssrbrjbrjjmsmffdlflfzfbzzmtztdthdhldhlddnccgbbmtbbsbzsbzzcsszpzfffprfpfzfrzzhvhffsmmqtjwgjbzhnmrslrmgfjpqcllcgsjdhrshqtlgmqqtfmswfzwtnrswtzdjzclcfmltqgdhcsgvzrdltgfbtqclpppvbqnbqmlhmdbsjbwbdllzpnrwfhmnlgvdwsdjsznnhqzhwntjvcpzdrfwmwwdrttdvzspmbmqggmlmsvwgcjgpvcmplqwfjgpghnfpbctnfhcgngcbdmzhlpcnjpmczzsgfgrdftrzgvmmpdmgcrpcdrjsgczpfjnwpdjpntdngdjwctvcbsjmfwvtsrlhvpswppmfwrwzsbsgbjvljzqjjldmnqnmwsmqnmhmqhhttppbpqlvdcvdbhmbnjzztjrdjdzlvmbdrghtftwdpcwwblsjbgnzwtpztmtmnrpsvzfzncqmrvhcbqcvqvnlngdcllrqlbhjttnmjmhfhdzmjmplcfdqpmwblzsnmpczwcnggcwdvgnjcrrtmpwwqdqpvtbzpdbfnbfcfllntqjlslcsznjvzvsbntrtzwhcbtdmbmwttvhdvdtvrcmprcrrjlgsqddrsmwsrbtbpjrmlbrnsdrjfhjnqjtgjmhzjbjnprvmhtjcdbztwqmrlfflfmcslshtwmwhgvbdslgjhzjlglhllsdphlzngjfwfrlwpnqfhghnqhzhgrszbcwjvlrtmshntszsqplvfbccjwctgtfmqgqjdlgdbwhgvctqtcgfdwvqdwqzddmsbrpftzpqztgzbnplvhftmgpdthnrdhqbltbrmhpcqsfccmqzwmrbnbgbjspslwpjhdqspssqdtnssmjmvzwwfstgzzjrmfczdlznwqpdhbsjqddvffcgfhfdqdrlwcsgcsszdtpqbbsthpwbhdfzmgmcdggfcwcmzfjnfbzbccjhvwhbwfslnqnrwhgrwtlnmrmncnjtbjbdlmqsczppgbcmsdrwlrpjbgrmnhqqfhhsdhmdmpvvpjrnzsvzctmqhpzcvcjfgtlfvqvnvlnprmgrsvrrvtjfndqfsvqdsfbcwlbglmfhfhcfgqdfmclnzhdtppgzzsqgjqncqrbdhlhdjqwjpmbdnfmgdgwbwmnlngnmrhcgqwzvmbjzdvsspjwwdtpnvpftdlqlzfgtscfczsvbrtrqqpgqlvmrtddqplbzsswbgpdzpqfvqpqbndblghmdhmnctdnjbgglmrlvmrmsfgntfdwvqcvvlvbcnwrctvjqhmnsjqccwltbfqpqpmwsfvmnnfqmlmlcchqcdtbvqwcpptvfwrwtbdrlsgnwpmjgnwlprzqjlwqmtmjglbrzlgfbsghwqdmwhrcmfwdmzmflsbngtgndftdpzsqvgqdsfdhplmfcmwpbtvcdmpghmfwqjvhdhfpmbrqpvnbhlftgdtprlztrgnlcldfpjqjqdfrvqtcnzrtjcgzgsslzghlnfhwwjwzdsmpsczclrfmnqjvfmvsqpntsnnnlrfswqtrppzhqgjzlzvrrbhhfhchhvgztpgctcsgssvttszsrdwzwrbmwmspgqhmmfnzqqdbmnbltdmrsvqgddltwczbbjcmplncspgqgmzrndhttsrbvqbpbvhshfqrpqgmmdbhmmtccjcmntmpqhrvhnfnlqqbctsnfzjbphhqwmztgbhqqlbctbsfcszbggzrlcdhwddtjgtqhppzgjsqcddwjsngjrcdflmgwgfnzhjtcwgbqvpwmpgcpdwvqgswwfzcnjgmdpffmqczmsqgpthpmsjlwnrcbzrfshvwftzllwrmfccmlpjnmpjdfpcvjgjpznllmqjwpcflgqgdljtbbjvjlvhhmtvzfnjfnnwrvtlfdbhqphrjghtmlsrplqscsnvjvqdslsbsfzzrjfmchplzgjgdqvzhfphvsjfvnqlgmjfzhrdlmmvfntnzdvrnwqshsmtjnqmwzgpbbzszrsqcvlzjwnmgjhmfqrbvgmfqpswctmvpfcghvdqgstglmzvpfhzfzvhqqdmvrvrttlpwwhqgddzqlrvvdffqtznvlfgjhhmvbmtzjqnnhqzrtbzpqcwpngrdcndcgzwhzgtfwbmwbrpvvczczhwcqwsqzqbqvqftcswtcbzdbpccjhtwbpnwlwwwqwscptlwshrdbmmdcgrmpnnwgjwzszwwdwctfspbfqvdjqtrflshrqlbfgpnrmbszwjpcdzbggphgplcgvwljprzmtncsvfwqchttndhpnzmtdvtjqtcsddtqvcmztmjgwqvjhflrjjtnvfpjrnlvzvwvrpbhrzslmrqqzqhnzqnvtqppmncddphbwwsjczmphsrlltzndtqjgdlqgpnlfcvwntstmrgcrjzmmllpwldnwmwzpvzctmhszspcvtgnqthszzsmtdnzwtfddfctpjhscbqgwfpqmzpvqrzvtbrdjzrqprdgbpmzzfbgqcvcdtsfrffcpqwtvdwvtcqlcsdrzntgrhrspznndslmnvptlphpdqgbblfhmgbpmmfwqzlhvzshhpzgfjldqclngbcbrmmnqqvqmwdnjsglsggqfgjldqfbsqgtrwmpdffqlcwwlfhlpqfgwtssnjwzhgvtwqzmhmgwzwmcggmpmrzqrcsmflqsrbnzvdmjcdbnscstqrqhvddsbjpzwsvzswqhcqmgzlvfcnzjrrffzphmrvdbhqbrwpsfqvfqwhqhcgfvfsfttzcdsrjgjwcgvhllszmplmvgczqsbfldnbvrnqccbprjjdwhmqpdjjrnfdlhzdvlfmrldjlqclbjrrtjfsflphzdcdpfpr
diff --git a/src/bin/day_6.rs b/src/bin/day_6.rs
new file mode 100644
index 0000000..bcb0d5d
--- /dev/null
+++ b/src/bin/day_6.rs
@@ -0,0 +1,45 @@
+use aoc_2022::prelude::*;
+
+type Input = String;
+
+fn parse(s: &str) -> Result<Input> {
+    Ok(s.to_owned())
+}
+
+#[aoc(day = 6, parse = parse, test_cases = ["day_6_1.txt", "day_6_2.txt", "day_6_3.txt", "day_6_4.txt"])]
+fn day_6(mut input: Input) -> Result<()> {
+    // Part 1
+    for i in 4..input.len() {
+        let s = &input[i - 4..i];
+        let mut marker = true;
+        for i in 0..3 {
+            for j in i + 1..4 {
+                if s.chars().nth(i).unwrap() == s.chars().nth(j).unwrap() {
+                    marker = false;
+                }
+            }
+        }
+        if marker {
+            println!("Part one: {i}");
+            break;
+        }
+    }
+
+    // Part 2
+    for i in 14..input.len() {
+        let s = &input[i - 14..i];
+        let mut marker = true;
+        for i in 0..13 {
+            for j in i + 1..14 {
+                if s.chars().nth(i).unwrap() == s.chars().nth(j).unwrap() {
+                    marker = false;
+                }
+            }
+        }
+        if marker {
+            println!("Part two: {i}");
+            break;
+        }
+    }
+    Ok(())
+}
diff --git a/test_cases/day_6_1.txt b/test_cases/day_6_1.txt
new file mode 100644
index 0000000..9e3311c
--- /dev/null
+++ b/test_cases/day_6_1.txt
@@ -0,0 +1 @@
+bvwbjplbgvbhsrlpgdmjqwftvncz
\ No newline at end of file
diff --git a/test_cases/day_6_2.txt b/test_cases/day_6_2.txt
new file mode 100644
index 0000000..cca46f5
--- /dev/null
+++ b/test_cases/day_6_2.txt
@@ -0,0 +1 @@
+nppdvjthqldpwncqszvftbrmjlhg
\ No newline at end of file
diff --git a/test_cases/day_6_3.txt b/test_cases/day_6_3.txt
new file mode 100644
index 0000000..848af1c
--- /dev/null
+++ b/test_cases/day_6_3.txt
@@ -0,0 +1 @@
+nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg
\ No newline at end of file
diff --git a/test_cases/day_6_4.txt b/test_cases/day_6_4.txt
new file mode 100644
index 0000000..a4fc5ba
--- /dev/null
+++ b/test_cases/day_6_4.txt
@@ -0,0 +1 @@
+zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw
\ No newline at end of file