diff --git a/2022/Vm.hs b/2022/Vm.hs
new file mode 100644
index 0000000..164e01c
--- /dev/null
+++ b/2022/Vm.hs
@@ -0,0 +1,29 @@
+module Vm where
+
+import Control.Monad.Trans.State as St
+
+data Instr = Noop | Addx Integer
+data CpuState = CS {regx :: Integer, step :: Integer}
+
+initState = CS 1 0
+
+eval :: Instr -> St.State CpuState ()
+eval Noop = do
+    s <- St.get
+    put $ s {step = step s + 1}
+
+eval (Addx i) = do
+    s <- St.get
+    let step' = step s + 2
+    let x' = regx s + i
+    put $ CS x' step'
+
+instrFromWords :: [String] -> Instr
+instrFromWords ["noop"] = Noop
+instrFromWords ["addx", i] = Addx (read i)
+
+readProgram :: IO [Instr]
+readProgram = do
+    x <- lines <$> getContents
+    pure $ map (instrFromWords . words) x
+    
\ No newline at end of file
diff --git a/2022/day08.hs b/2022/day08.hs
new file mode 100644
index 0000000..901ef48
--- /dev/null
+++ b/2022/day08.hs
@@ -0,0 +1,53 @@
+
+import Data.Set as S
+import Data.List (transpose)
+import Data.Char (digitToInt)
+import Debug.Trace (traceShowId)
+
+type TreeSet = S.Set (Int, Int)
+
+toIndices :: [a] -> [Int]
+toIndices = fmap fst . zip [0..]
+
+enumerate = zip [0..]
+
+check :: Ord t1 => [t1] -> Int -> t1 -> [Int]
+check [] i max = []
+check (t:ts) i req = (if t > req then (i:) else id) $ check ts (i+1) (max t req)
+
+addRow :: (Int -> (Int, Int)) -> [Int] -> TreeSet
+addRow f ts = S.fromList (Prelude.map f (left ++ right)) where
+    check' ts = check ts 0 (-1)
+    left = check' ts
+    right = (\x -> length ts - x - 1) <$> check' (reverse ts)
+
+evalOutside :: [[Int]] -> TreeSet
+evalOutside xs = Prelude.foldr S.union S.empty (hor ++ ver) where
+    hor = (\(i, ts) -> addRow (i,) ts) <$> enumerate xs
+    ver = (\(i, ts) -> addRow (,i) ts) <$> enumerate (transpose xs)
+
+
+
+scenicScore :: (Int, Int) -> [[Int]] -> Int
+scenicScore (x,y) ts = product $ count <$> [reverse left, right, reverse up, down] where
+    (left, _:right) = Prelude.splitAt x (ts !! y)
+    (up, _:down) = Prelude.splitAt y (transpose ts !! x)
+    height = ts !! y !! x
+    count t = length t `min` (1 + length (takeWhile (<height) t))
+
+allScenics :: [[Int]] -> [Int]
+allScenics ts = Prelude.map (\c -> scenicScore c ts) coords where 
+    coords = [(i,j) | i <- [0..length ts-1], j <- [0..length (head ts)-1]]
+    
+
+
+main :: IO ()
+main = do
+    x <- lines <$> readFile "inputs/day08"
+    let ts = fmap (fmap digitToInt) x
+
+    putStr "part 1: "
+    print $ S.size $ evalOutside ts
+
+    putStr "part 2: "
+    print $ maximum (allScenics ts)
\ No newline at end of file
diff --git a/2022/day09.hs b/2022/day09.hs
new file mode 100644
index 0000000..145edca
--- /dev/null
+++ b/2022/day09.hs
@@ -0,0 +1,73 @@
+import Control.Monad.Trans.State as St
+import Data.Set as S
+
+type Coord = (Int, Int)
+data Command = U | D | L | R
+
+parseCommand :: String -> [Command]
+parseCommand ('U' : ' ': xs) = replicate (read xs) U
+parseCommand ('D' : ' ': xs) = replicate (read xs) D
+parseCommand ('L' : ' ': xs) = replicate (read xs) L
+parseCommand ('R' : ' ': xs) = replicate (read xs) R
+
+touching :: Coord -> Coord -> Bool
+touching (hx, hy) (tx, ty) = hx >= tx -1 && hx <= tx+1 && hy >= ty-1 && hy <= ty+1
+
+updateTail :: Coord -> Coord -> Coord
+updateTail (hx, hy) (tx, ty)
+    | touching (hx, hy) (tx, ty) = (tx, ty)
+    | hx == tx && hy > ty+1 = (tx, ty+1)
+    | hx == tx && hy < ty-1 = (tx, ty-1)
+    | hy == ty && hx > tx+1 = (tx+1, ty)
+    | hy == ty && hx < tx-1 = (tx-1, ty)
+    | hx > tx && hy > ty = (tx+1, ty+1)
+    | hx > tx && hy < ty = (tx+1, ty-1)
+    | hx < tx && hy > ty = (tx-1, ty+1)
+    | hx < tx && hy < ty = (tx-1, ty-1)
+
+updateHead :: Command -> Coord -> Coord
+updateHead U (x,y) = (x, y-1)
+updateHead D (x,y) = (x, y+1)
+updateHead L (x,y) = (x-1, y)
+updateHead R (x,y) = (x+1, y)
+
+data Coords = CS {h :: Coord, t :: Coord}
+type Cs a = St.State Coords a
+
+execute :: Command -> Cs Coord
+execute cmd = do
+    st <- St.get
+    let head = updateHead cmd (h st)
+    let tail = updateTail head (t st)
+    St.put $ CS head tail
+    pure tail
+
+type Coords2 = [Coord]
+type Cs2 a = St.State Coords2 a
+
+initCoords2 :: Coords2
+initCoords2 = replicate 10 (0,0)
+
+updateTails :: Coord -> [Coord] -> [Coord]
+updateTails head [] = []
+updateTails head (t:ts) = let tail = updateTail head t in tail : updateTails tail ts
+
+execute' :: Command -> Cs2 Coord
+execute' cmd = do
+    st <- St.get
+    let head = updateHead cmd (Prelude.head st)
+    let tails = updateTails head (Prelude.tail st)
+    St.put $ head : tails
+    pure $ last tails
+
+main :: IO ()
+main = do
+    x <- concatMap parseCommand . lines <$> getContents
+    
+    putStr "part 1: "
+    let visited = S.fromList $ St.evalState (mapM execute x) (CS (0,0) (0,0))
+    print $ S.size visited
+
+    putStr "part 2: "
+    let visited2 = S.fromList $ St.evalState (mapM execute' x) initCoords2
+    print $ S.size visited2
\ No newline at end of file
diff --git a/2022/day10.hs b/2022/day10.hs
new file mode 100644
index 0000000..bf08aae
--- /dev/null
+++ b/2022/day10.hs
@@ -0,0 +1,29 @@
+import qualified Vm
+import Control.Monad.Trans.State as St
+import qualified Data.Map as M
+import Data.Maybe (fromJust, fromMaybe)
+import Data.List.Split (chunksOf)
+
+mapS :: s -> [St.State s a] -> [s]
+mapS init [] = []
+mapS init (x:xs) = let s = execState x init in s : mapS s xs
+
+main :: IO ()
+main = do
+    program <- Vm.readProgram
+    let states = mapS Vm.initState (fmap Vm.eval program)
+    let statesM = M.fromList $ zip (map Vm.step states) (map Vm.regx states)
+
+    print statesM
+
+    putStr "part 1: "
+    let cycles = [20, 60, 100, 140, 180, 220]
+    let strengths = map (\i -> i * snd (fromJust $ (i-1) `M.lookupLE` statesM)) cycles :: [Integer]
+    print $ sum strengths
+
+    putStrLn "parts 2: "
+    let finalIter = fst $ fromJust $ M.lookupMax statesM
+    let signals = zip [0..] $ map (\i -> snd (fromMaybe (0,1) $ (i-1) `M.lookupLE` statesM)) [1..finalIter]
+    let crt = map (\(i, s) -> let p = i `mod` 40 in p >= s-1 && p <= s+1) signals
+    print signals
+    mapM_ putStrLn $ chunksOf 40 $ map (\b -> if b then '#' else ' ') crt
diff --git a/2022/inputs/day08 b/2022/inputs/day08
new file mode 100644
index 0000000..0e37410
--- /dev/null
+++ b/2022/inputs/day08
@@ -0,0 +1,99 @@
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diff --git a/2022/inputs/day08.test b/2022/inputs/day08.test
new file mode 100644
index 0000000..6557024
--- /dev/null
+++ b/2022/inputs/day08.test
@@ -0,0 +1,5 @@
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\ No newline at end of file
diff --git a/2022/inputs/day09 b/2022/inputs/day09
new file mode 100644
index 0000000..a978a43
--- /dev/null
+++ b/2022/inputs/day09
@@ -0,0 +1,2000 @@
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diff --git a/2022/inputs/day09.test b/2022/inputs/day09.test
new file mode 100644
index 0000000..9874df2
--- /dev/null
+++ b/2022/inputs/day09.test
@@ -0,0 +1,8 @@
+R 4
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diff --git a/2022/inputs/day09.test2 b/2022/inputs/day09.test2
new file mode 100644
index 0000000..60bd43b
--- /dev/null
+++ b/2022/inputs/day09.test2
@@ -0,0 +1,8 @@
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diff --git a/2022/inputs/day10 b/2022/inputs/day10
new file mode 100644
index 0000000..5fab235
--- /dev/null
+++ b/2022/inputs/day10
@@ -0,0 +1,140 @@
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diff --git a/2022/inputs/day10.test b/2022/inputs/day10.test
new file mode 100644
index 0000000..37ee8ee
--- /dev/null
+++ b/2022/inputs/day10.test
@@ -0,0 +1,146 @@
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