diff --git a/Cargo.lock b/Cargo.lock
index d516d25..84e83e6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,65 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "async-mutex"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "479db852db25d9dbf6204e6cb6253698f175c15726470f78af0d918e99d6156e"
+dependencies = [
+ "event-listener",
+]
+
+[[package]]
+name = "async-trait"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d3a45e77e34375a7923b1e8febb049bb011f064714a8e17a1a616fef01da13d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e2afe73808fbaac302e39c9754bfc3c4b4d0f99c9c240b9f4e4efc841ad1b74"
+dependencies = [
+ "async-mutex",
+ "async-trait",
+ "cached_proc_macro",
+ "cached_proc_macro_types",
+ "futures",
+ "hashbrown",
+ "once_cell",
+]
+
+[[package]]
+name = "cached_proc_macro"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf857ae42d910aede5c5186e62684b0d7a597ce2fe3bd14448ab8f7ef439848c"
+dependencies = [
+ "async-mutex",
+ "cached_proc_macro_types",
+ "darling",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "cached_proc_macro_types"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a4f925191b4367301851c6d99b09890311d74b0d43f274c0b34c86d308a3663"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -16,6 +76,147 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "darling"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d706e75d87e35569db781a9b5e2416cff1236a47ed380831f959382ccd5f858"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c960ae2da4de88a91b2d920c2a7233b400bc33cb28453a2987822d8392519b"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b5a2f4ac4969822c62224815d069952656cadc7084fdca9751e6d959189b72"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "event-listener"
+version = "2.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7531096570974c3a9dcf9e4b8e1cede1ec26cf5046219fb3b9d897503b9be59"
+
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
+[[package]]
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+checksum = "0e7e43a803dae2fa37c1f6a8fe121e1f7bf9548b4dfc0522a42f34145dadfc27"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e682a68b29a882df0545c143dc3646daefe80ba479bcdede94d5a703de2871e2"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0402f765d8a89a26043b889b26ce3c4679d268fa6bb22cd7c6aad98340e179d1"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.15"
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+checksum = "badaa6a909fac9e7236d0620a2f57f7664640c56575b71a7552fbd68deafab79"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acc499defb3b348f8d8f3f66415835a9131856ff7714bf10dadfc4ec4bdb29a1"
+
+[[package]]
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+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4c40298486cdf52cc00cd6d6987892ba502c7656a16a4192a9992b1ccedd121"
+dependencies = [
+ "autocfg",
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a57bead0ceff0d6dde8f465ecd96c9338121bb7717d3e7b108059531870c4282"
+
+[[package]]
+name = "futures-task"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a16bef9fc1a4dddb5bee51c989e3fbba26569cbb0e31f5b303c184e3dd33dae"
+
+[[package]]
+name = "futures-util"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "feb5c238d27e2bf94ffdfd27b2c29e3df4a68c4193bb6427384259e2bf191967"
+dependencies = [
+ "autocfg",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
+ "futures-task",
+ "memchr",
+ "pin-project-lite",
+ "pin-utils",
+ "proc-macro-hack",
+ "proc-macro-nested",
+ "slab",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.0"
@@ -27,16 +228,35 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
+
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "libc"
 version = "0.2.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
 
+[[package]]
+name = "memchr"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
+
 [[package]]
 name = "mercury"
 version = "0.1.0"
 dependencies = [
+ "cached",
  "coz",
  "modular-bitfield",
  "rand",
@@ -70,12 +290,36 @@ version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13bd41f508810a131401606d54ac32a467c97172d74ba7662562ebba5ad07fa0"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro-nested"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.24"
@@ -134,12 +378,24 @@ dependencies = [
  "rand_core",
 ]
 
+[[package]]
+name = "slab"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
+
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "strsim"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
+
 [[package]]
 name = "syn"
 version = "1.0.58"
diff --git a/Cargo.toml b/Cargo.toml
index a50eb0c..56f5246 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,8 @@ rand = "0.8.1"
 coz = "0.1"
 tinyvec = "1.1.0"
 
+cached = "0.23.0"
+
 modular-bitfield = "0.11.2"
 
 #jemallocator = "0.3.2"
diff --git a/src/azul.rs b/src/azul.rs
index 718b9cc..97e15bf 100644
--- a/src/azul.rs
+++ b/src/azul.rs
@@ -23,7 +23,7 @@ pub fn size_of_stuff() {
 
 }
 
-#[derive(Debug, Clone, Copy, PartialEq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum Tile {
     Start,
     Blue,
@@ -161,7 +161,7 @@ impl Iterator for GameMoveIter {
     }
 }
 
-#[derive(Clone, Debug, Copy)]
+#[derive(Clone, Debug, Copy, PartialEq, Eq, Hash)]
 struct Bag (tinyvec::ArrayVec::<[Tile; 128]>);
 
 impl Default for Bag {
@@ -207,7 +207,7 @@ impl From<tinyvec::ArrayVec<[Tile; 128]>> for Bag {
 }
 
 
-#[derive(Default, Debug, Copy)]
+#[derive(Default, Debug, Copy, PartialEq, Eq, Hash)]
 struct Factory (tinyvec::ArrayVec<[Tile; 4]>);
 impl Clone for Factory {
     //#[no_alloc]
@@ -230,7 +230,7 @@ impl DerefMut for Factory {
 
 
 
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 struct Market (tinyvec::ArrayVec<[Tile; 28]>);
 impl Default for Market {
     fn default() -> Self {
@@ -258,7 +258,7 @@ type Patterns = [tinyvec::ArrayVec<[Tile; 5]>; 5];
 type Row  = [bool; 5];
 type Wall = [Row;  5];
 
-#[derive(Debug, Clone, Default, Copy)]
+#[derive(Debug, Clone, Default, Copy, PartialEq, Eq, Hash)]
 struct Board {
     score: u8,
     wall: Wall,
@@ -363,7 +363,7 @@ impl Board {
 }
 
 //#[repr(align(16))]
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct Game {
     turn: u32,
     player: u8,
diff --git a/src/main.rs b/src/main.rs
index 3f5e902..68dd1e3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,5 @@
 #![feature(test)]
+use cached::proc_macro::cached;
 
 mod azul;
 use azul::*;
@@ -32,7 +33,7 @@ fn main() -> Result<(), &'static str> {
             game.do_move(GameMove(4, Tile::Blue, 2))?;
             game.do_move(GameMove(0, Tile::Black, 4))?;
 
-            game.do_move(GameMove(5, Tile::Black, 1))?;
+            //game.do_move(GameMove(5, Tile::Black, 1))?;
             //game.do_move(GameMove(0, Tile::Blue, 3))?;
             
             // println!("{:#?}", game);
@@ -94,6 +95,7 @@ fn calculate_options() -> Result<(), &'static str> {
     Ok(())
 }
 
+#[cached(size=15_000_000, key = "Game", convert = r#"{ _game }"#)]
 fn count_options(_game: Game, depth: u8, treshold: u8) -> u128 {
     let mut sum = 0;
     let mut all_failed = true;