diff --git a/src/bin/d6.rs b/src/bin/d6.rs
new file mode 100644
index 0000000..249d0fe
--- /dev/null
+++ b/src/bin/d6.rs
@@ -0,0 +1,23 @@
+use itertools::Itertools;
+
+const INPUT: &str = include_str!("../input/d6.txt");
+
+fn main() -> anyhow::Result<()> {
+    let p1 = INPUT
+        .as_bytes()
+        .windows(4)
+        .enumerate()
+        .find(|w| w.1.iter().all_unique())
+        .expect("Input should be valid")
+        .0 + 4;
+    println!("{p1}");
+    let p2 = INPUT
+        .as_bytes()
+        .windows(14)
+        .enumerate()
+        .find(|w| w.1.iter().all_unique())
+        .expect("Input should be valid")
+        .0 + 14;
+    println!("{p2}");
+    anyhow::Ok(())
+}
diff --git a/src/input/d6.txt b/src/input/d6.txt
new file mode 100644
index 0000000..572f558
--- /dev/null
+++ b/src/input/d6.txt
@@ -0,0 +1 @@
+mgtgddtfdtffzvznvnrncrrbqqhlhhffzqqzpqqthhrhhfphfphhcppcddnwdnwwtmwttfvvthvvrrbvbmvmssrlslfslflppblllwrlrzlldwdllqblqbqbsscmsmwwffjpppnlnhllbblvbvsbbzvzrzzsmsjsddfpftfvtffgjjfzjfjqfqjfjsscvcccgttgtzgzmgmtmbbwzzjqzzdfzfmzmzfzwzvwvggqcqrrcwrcrzrccqcwwbgbqqwdqqzjzsjjwbjjssmmcfcbcddlhhtltmtlljffvjffhghmggmvvfgfqgfgppnpllmvmfvvzjjzrztztvvstsvvppqdpprjjmtmjtmjjdrdcrdccgsccnsccqsqzszqsqgqwggbhbllvclljrrlrqlljtjcjjlrlhrhjhjnnnpllwtwstttlnlqnlnmnqnpqpbqqbgbzzrhzrhzhrzhrzhzshhqvqgqgbbcqccqmcqccvgccrwrgwrgrdrhhbshbhwbhwbhhvthvttfrrqsstqssqmmpnpwpfpcffcdchhrsshrhggtcttmrrhvvjfvjvvclvllmqmvvhddrdjjhdhvhlvhlltlstltffbbqbwqbbbnsbnbwbssjwsjsfjjsjwwzttqzzsdspprlrblrltrrfrsfffwqwpwddddnqqtbtwwhwpwdwmmcrmrsmmwppjzpjpcpdpjpdpdqppmjjlqqjfqqhgqhhbddtccthhwjhhlfftvtppwzpwzpznpzpqpgqpgpnpdndnbnddqrrjdjwwdmmtnntvnnrhrfhfrfwfvwffmnfnlfldfdjjwgwqqwwsslrrvhhrqqsfqfllrmrqmrrbppwjppmlmggvppdhppspjjzljjrzzrlzrrlldllvlpvpfprfprrhdrdlllpqqfhqqhchzzzwpwjpjjgzzwqqtqdqbdbdgggbrgrzzznwwbvbnbpnbpprnrvvfvsscncrczcbchhjqhjjzrznndwnnvttmtthssgvvbvfvtvptpthhzggnjjhrjdqzjbtfpqdtwtmgnngqdzhdrfzqvcqggmcdbsdrdrmgqhmvfvdgbvrnlbhfsbpjhwgzfndqgcjdbpsffcslfcltsbclspdjhscqrncfrjrbjfzspccshtrdggjbhthrrhgnjvsptfnjvjvhhdjfbtfgpfgszhhbcvzplclrnsrpffpjhbthnfsfflqphhjjdpcfwzhfdpnsftrnfhrdhndlrnfrnvprtvnmgclzlrdjrzdcllvlwdlrcfbsgcbwcnbvjztzfsgcgqlmgcbsgwbbrmrcthfpvmbfvtbhqstccfntmphqpjwpbcdpnffqpszlnqdcqtfhvlvpgdpljvcschdtpvcswfzcbpqdhfjzzdjvgldspcvlnfnwffhjzdnbmjjtnrqlgnggsvdltnrpcfwqvphtsmrfzhflwjjbnpwlzhhmdnpqptgcjnrrgcnhwllqsbsjjvzmqsghlzvhdfbrnfhrqjswrpgcctsqvdwzgpqdssfmtgwvsznlbhsgppwdhhtjmscjfrjdgflwcrlbsfwrnvtnmcwpndhtttgqfvmvmfnwdrrvgmgdqlqvvlphwzgmwcphjvcfsqbbwttntmgvfmlmctggmtlwtmfsmczbgdvbsjstzgflnjplgrlhbbgldlchwmhclzbcwpqzlzbjzbplnvpbzjhmwfmrfnwlnsvpzhrgjdpqvnjtbfjfsvdqcfwdjftsmfqdrqllwlbnbmgtswrhbtbqlchznbgnphgntrtwbtmsjtphhqpbngwmmsdnsdqcctrsrzbrtpwtvhvqbrjldfldllpvspthdhdljfvjzcjsltwflscfqsrvzhgvzhqnnjwdwdtnsvgchzrnbzfscvsmrmqsqjmrjjdhtspbzpqtqqbfbzrddwqzwpqjbpbbbghlwmzhqvqdwwwwvltvvcpgzlwzvmqzfcgnjpjnpgsccvzpnzjwwnnjrcpbvwljfrjqzwsrvdmqwwfpldqcdwlchvggclmwnbhlrlzvsrtrqmzchqfqfhqfjgqsfvclnchdnnvdbqpcddnldggwrpbgrwwtssfndhrhnwtqmgrwpggntlqmfgbzjhwwsclvfmwgzzfrsccdfddntnlldpnwzhnzlssnnfbvjjhnrvclmphgfpvnwjzznbvgqnpljcrjpndgrlbdzsbfrrrfztbqcbphlppwcvhmrrmtrlvfjcddtznlmflrpsclgjpqczwrptfsccmdpzfvwnfsvshcnzrjrmstrslhgtrsmgplvcwptfqrgzgwhvtvrqlrjpcbztgtfwpnzqpmctvpdlgrtzzlsmgnftqvtvcmndspjqbdnmrttwhdrncsntntmrwjrqstdrptnhbqgtlqsdqfmbjtvgstndlvndqqsbqvcghwwjdzpszrsfpdzvnmnbzngczndtwtmprbzjdzbthslttzwwfptbphqwczsrqcbcbqnhbtcpjpbcqpjgjmhmfnggcbvctslpmqrpqzbcfrcgzmzpbpwzsjlrmpfzhgnnbqfrbslrfsthgtmsdfhzgdmjwwsgcdptssmbvffhlmfvwnmbpnzbvpsvnwsvsgrcmhpclwsbvtfqstnpzvgmgfcrmjhbccwcptssjhbfmzsqljjcrnnszvffzfwgcpnqrtjnqdltwnbglwlwpschvqwfdztvcwsqtwmgwccgsqbsvlwdhlnqphwtcmdpvvrqfwmlbptbvghvjntqbcsqjspwnmvdqcfbqzqchhhwqgdcmdhfvtzprscpshpbmzhwsznlpvzrwvmhtqsclzffgnvvrfbzmvqmnrrzjbmhdbspjprrmflgrwhnhcqpczchpnrnfjgdlnlrnzwnvjpmzgpfzspwmfnwcrrdczdhtnscmwqwqbcrdrsndpwbdvpgpbpsfzbmvjlsrdcgnwgrvmjnzlpnwtcrmnfcqgmlnhqbwlrnzlbdrnzfhnqddsfmnhnrrrdjgqprmgvrnhzrlccjthhfzdbltgrbrjpmbhvgrlwngdlfsljhfvwhvpmltdfnzwzcgzdpppnzcnpjttdgpzzqppnfzlmhrngbmcmshtgzbjllwstdbnmmwlrlllgfgshvcsjbpnggzrvvmvdqhjhvhmmpvrdqbrfpdtcdbqrvwhdrtqgftnwwzrcgzwmwjmdgmfswqwlgmvmvhscjmzshtbzmfmbqtbsjppzbczwcqpqhhqdggcntdchjgwsvfnzfqdzvhpnwbjhbqnldzbzmctcdqgjsmbqdzmmtjzvqzdqzsfpmncdmqlnpsrwcznbtzqtbcwwdqjftcdmmwdjdnwvpchffsmqmmwvqfgcnfhbjsttwnwppssmvrrhrbqwsncpfnbfggdqjwbgtvgtwsmlqbwzlghnzhjwphswjtbtptmhlzhvvrwqqcgwnmcqtcjlndwgjrpschhhsmrvvwtrjplwrtswhrjlgjhzgzrjhsbrjhtgnmfdvbjlntcrphsnmdcjzgwtvgldrfpcfgpzlgsfthdmpbnhmlsbnbqzpqvzzmvswbbnbtzvbsznqdgqlbbwzhjrzndltfgswtszsmmrhrcrcrcpgtqfcrmjrtflsbcbbmrsrfgnsrmbrpcvfpmqtmbrbbqtzrjntnvbvwjwqmwmcvmzccmwcnhrfpgghlqczcfszfhqgrdnfpnrrzpzbnjqjtvbglvqlhpstpzzcwrdgfhghqtsgzgsmgnpgvbsvsjtnwbvtqpcfdvhnjjvwjwglplthmghrwpmsgbdbfpvqsmsdvjgchlnlnczlzczqmjsnpgrgqgndwzdtlmmgzjpqvbqmcmhnhpqvpjjsftctwsrfmhrlctrvhczjbfsvqnshmchdsrmlrlqdnfsvhlblwghsdnrtwnpdtqgczmghqcmfzvsgqvrngjvbjsvnpzvpsplhvndvqpjjrtmrqscjrhvdmqcgwjmrgsdmgswgnbpdtgvvbrzrcwtvvwhpmcqwdtsmwwfgdpdrjsbvtbdvbhwftqznpssnsnjnclblslfgz
\ No newline at end of file