diff --git a/README.md b/README.md
index c79560d..f3c80b6 100644
--- a/README.md
+++ b/README.md
@@ -28,3 +28,67 @@ Programme pour résolution de Tusmo.
 #   -n, --length  <length>  - Length of the word to use from the dictionnary.                         (Default: 6)
 #   -w, --wait    <wait>    - Time to wait between guesses, in ms.                                    (Default: 0)
 ```
+
+### Proxy
+
+```sh
+./src/manual_proxy.ts
+# Please input initial state of the game. Format is :
+#   letter    [a-z]    known letter
+#   dot       .        unknown letter
+# example : .rb..
+
+# initial : a....
+
+# From now on, please try the following guesses and report results. Format is :
+#   plus     +    correct
+#   minus    -    wrong placement
+#   dot      .    incorrect
+# example : -++..
+
+# <proxy> Guessing: aires
+# <proxy>   Result: +.--.
+
+#    Knows: .....
+# Guessing: aires
+#      Got: #.**.
+
+# <proxy> Guessing: acere
+# <proxy>   Result: +..++
+
+#    Knows: a....
+# Guessing: acere
+#      Got: #..##
+
+# <proxy> Guessing: arabe
+# <proxy>   Result: ++.-+
+
+#    Knows: a..re
+# Guessing: arabe
+#      Got: ##.*#
+
+# <proxy> Guessing: aveux
+# <proxy>   Result: +.-..
+
+#    Knows: ar.re
+# Guessing: aveux
+#      Got: #.*..
+
+# <proxy> Guessing: album
+# <proxy>   Result: +.+..
+
+#    Knows: ar.re
+# Guessing: album
+#      Got: #.#..
+
+# <proxy> Guessing: arbre
+# <proxy>   Result: +++++
+
+#    Knows: arbre
+# Guessing: arbre
+#      Got: success
+
+# Stopped on arbre .
+# With success .
+# In 6 steps
+```
diff --git a/build.sh b/build.sh
index 57e17f1..52377e9 100755
--- a/build.sh
+++ b/build.sh
@@ -4,4 +4,5 @@ cd "$(dirname "$(realpath "$0")")"
 
 mkdir -p bin
 
+deno compile -o bin/manual_proxy src/manual_proxy.ts
 deno compile -o bin/simulation src/simulation.ts
diff --git a/src/lib/dict.ts b/src/lib/dict.ts
index 50603a6..cb679c9 100644
--- a/src/lib/dict.ts
+++ b/src/lib/dict.ts
@@ -25,6 +25,13 @@ export class Dict {
 		return Dict.from_lines(content.split("\n"), length);
 	}
 
+	constraint(at: number, letter: string) {
+		const to_delete = new Set<string>();
+		for (const word of this.words.values()) if (word[at] !== letter) to_delete.add(word);
+		for (const item of to_delete) this.words.delete(item);
+		return to_delete.size;
+	}
+
 	[Symbol.for("Deno.customInspect")]() {
 		return `Dict { ${this.words.size} words, ${this.letters.size} letters }`;
 	}
diff --git a/src/lib/game/proxy.ts b/src/lib/game/proxy.ts
new file mode 100644
index 0000000..ced5f21
--- /dev/null
+++ b/src/lib/game/proxy.ts
@@ -0,0 +1,48 @@
+import { assertExists } from "https://deno.land/std@0.224.0/assert/assert_exists.ts";
+
+import { Awaitable } from "../utils.ts";
+import { Gaming, GuessResult, Info } from "./game.ts";
+
+export class ManualProxy implements Gaming {
+	word_length;
+
+	constructor(length: number) {
+		this.word_length = length;
+	}
+
+	guess(guess: string, _known: string): Awaitable<GuessResult> {
+		console.log("<proxy> Guessing:", guess);
+		const result = read_until_correct(this.word_length);
+		console.log();
+		return result;
+	}
+
+	length(): number {
+		return this.word_length;
+	}
+}
+
+function read_until_correct(length: number): GuessResult {
+	while (true) {
+		const input = prompt("<proxy>   Result:");
+		assertExists(input);
+		const informations = parse_input(input, length);
+		if (informations === null) {
+			console.log("<proxy> incorrect input, try again");
+			continue;
+		}
+		if (informations.every((i) => i.kind === "there")) return { kind: "success" };
+		return { kind: "failure", informations };
+	}
+}
+
+function parse_input(input: string, length: number) {
+	const parsed = [] as Info[];
+	for (const character of input.trim()) {
+		if (character === ".") parsed.push({ kind: "abscent" });
+		if (character === "-") parsed.push({ kind: "somewhere" });
+		if (character === "+") parsed.push({ kind: "there" });
+	}
+	if (parsed.length !== length) return null;
+	else return parsed;
+}
diff --git a/src/lib/guesser.ts b/src/lib/guesser.ts
index c0afca6..841dc88 100644
--- a/src/lib/guesser.ts
+++ b/src/lib/guesser.ts
@@ -53,13 +53,13 @@ export class Guesser implements Guessing {
 		return null;
 	}
 
-	learn_does_not_exist(letter: string) {
+	public learn_does_not_exist(letter: string) {
 		const letter_info = this.informations.get(letter);
 		assertExists(letter_info);
 		letter_info.exists = false;
 	}
 
-	learn_does_exist(letter: string) {
+	public learn_does_exist(letter: string) {
 		const letter_info = this.informations.get(letter);
 		assertExists(letter_info);
 		letter_info.exists = true;
@@ -68,7 +68,8 @@ export class Guesser implements Guessing {
 		for (const info of this.informations.values()) if (info.exists === "unknown") info.exists = false;
 	}
 
-	learn_letter_at(letter: string, at: number) {
+	public learn_letter_at(letter: string, at: number) {
+		this.learn_does_exist(letter);
 		const letter_info = this.informations.get(letter);
 		assertExists(letter_info);
 		letter_info.at.add(at);
@@ -78,7 +79,7 @@ export class Guesser implements Guessing {
 		}
 	}
 
-	learn_letter_not_at(letter: string, at: number) {
+	public learn_letter_not_at(letter: string, at: number) {
 		const letter_info = this.informations.get(letter);
 		assertExists(letter_info);
 		letter_info.not_at.add(at);
diff --git a/src/lib/lib.ts b/src/lib/lib.ts
index 3ad2e8e..bd84cb1 100644
--- a/src/lib/lib.ts
+++ b/src/lib/lib.ts
@@ -1,4 +1,5 @@
 export { Dict } from "./dict.ts";
 export { Guesser } from "./guesser.ts";
 export { Simulator } from "./game/simulator.ts";
+export { ManualProxy } from "./game/proxy.ts";
 export { Runner } from "./runner.ts";
diff --git a/src/lib/prompt.ts b/src/lib/prompt.ts
new file mode 100644
index 0000000..01f42a8
--- /dev/null
+++ b/src/lib/prompt.ts
@@ -0,0 +1,46 @@
+import { assertExists } from "https://deno.land/std@0.224.0/assert/assert_exists.ts";
+
+import { enumerate } from "./utils.ts";
+
+export function initialize_prompt() {
+	console.log("Please input initial state of the game. Format is :");
+	console.log("  letter    [a-z]    known letter");
+	console.log("  dot       .        unknown letter");
+	console.log("example : .rb..");
+	console.log("");
+	const inputted = parse_initialization_until_correct();
+	console.log("");
+	console.log("From now on, please try the following guesses and report results. Format is :");
+	console.log("  plus     +    correct");
+	console.log("  minus    -    wrong placement");
+	console.log("  dot      .    incorrect");
+	console.log("example : -++..");
+	console.log();
+	return inputted;
+}
+
+function parse_initialization_until_correct() {
+	let input = prompt("initial :");
+	while (true) {
+		assertExists(input);
+		const parsed = parse_initialization(input);
+		if (parsed === null) input = prompt("Invalid, please try again :");
+		else return parsed;
+	}
+}
+
+function parse_initialization(input: string) {
+	const code_a = "a".charCodeAt(0);
+	const code_z = "z".charCodeAt(0);
+	let length = 0;
+	const constraints = [] as [number, string][];
+	for (const [index, char] of enumerate(input.trim().toLowerCase())) {
+		length += 1;
+		if (char === ".") continue;
+		const code = char.charCodeAt(0);
+		if (code < code_a) return null;
+		if (code > code_z) return null;
+		constraints.push([index, char]);
+	}
+	return { length, constraints };
+}
diff --git a/src/manual_proxy.ts b/src/manual_proxy.ts
new file mode 100755
index 0000000..4ffaf87
--- /dev/null
+++ b/src/manual_proxy.ts
@@ -0,0 +1,34 @@
+#!/usr/bin/env -S deno run --allow-read
+
+import { Command } from "https://deno.land/x/cliffy@v1.0.0-rc.4/command/mod.ts";
+
+import { Dict, Guesser, ManualProxy, Runner } from "./lib/lib.ts";
+import { initialize_prompt } from "./lib/prompt.ts";
+import { VerboseLogging } from "./lib/runner.ts";
+
+import { francais } from "../data/data.ts";
+
+async function main() {
+	const args = await new Command().name("manual_proxy")
+		.description(
+			"Program to solve manually proxied TUSMO games with guesser controller.",
+		)
+		.option(
+			"-f, --file <path:string>",
+			"Sets dictionnary to use words from (defaults to internal french dict).",
+		).parse(Deno.args);
+
+	const init = initialize_prompt();
+
+	let dict = Dict.from_lines(francais, init.length);
+	if (args.options.file !== undefined) dict = await Dict.from_text_file(args.options.file, init.length);
+	for (const [index, letter] of init.constraints) dict.constraint(index, letter);
+
+	const guesser = new Guesser(dict);
+	const game = new ManualProxy(init.length);
+
+	const runner = new Runner(game, guesser, new VerboseLogging());
+	await runner.play_all();
+}
+
+if (import.meta.main) await main();