diff --git a/source/snag/core/core.d b/source/snag/core/core.d
index 06aad49..b09fb89 100644
--- a/source/snag/core/core.d
+++ b/source/snag/core/core.d
@@ -7,6 +7,7 @@ import std.array;
 import std.process;
 import std.algorithm;
 import std.string;
+import std.regex;
 
 import snag.core.exception;
 
@@ -14,6 +15,11 @@ class Snag {
 	private string[] _baseCommand;
 	private SnagConfig _config;
 
+	private bool isValidHash(string hash) {
+		auto hashPattern = ctRegex!r"^[a-fA-F0-9]{7}$";
+		return !matchFirst(hash, hashPattern).empty;
+	}
+
 	this(SnagConfig config) {
 		_baseCommand = format(
 			"git --git-dir=%s --work-tree=%s",
@@ -67,9 +73,9 @@ class Snag {
 		writeln("The following list of files requires backup:");
 
 		/**
-		Цепочка выполняет разбивку по переводу на новую строку,
-		отсеивает пустые строки, перебирает в цикле имеющиеся строки,
-		выводит только вторую часть строки (разделенную по пробелу)
+		* Цепочка выполняет разбивку по переводу на новую строку,
+		* отсеивает пустые строки, перебирает в цикле имеющиеся строки,
+		* выводит только вторую часть строки (разделенную по пробелу)
 		*/
 		result.output.split('\n').filter!(e => !e.strip.empty).each!((e) {
 			writefln("\t/%s", e.strip.split[1]);
@@ -77,7 +83,45 @@ class Snag {
 	}
 
 	void create() {
+		/**
+		* Проверка файлов на состояние изменения
+		*/
 		auto result = execute(
+			_baseCommand ~ ["status", "--porcelain"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"An error occurred while checking the file tracking status:\n"
+				~ result.output
+			);
+		if (!result.output.length)
+			throw new SnagException(
+				"Current file state doesn't need to be archived again"
+			);
+
+		result = execute(
+			_baseCommand ~ [
+				"rev-parse", "--short", "HEAD"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve current snapshot information:\n"
+				~ result.output
+			);
+
+		string currentSnapshot = result.output.strip('\n');
+
+		result = execute(
+			_baseCommand ~ [
+				"checkout",
+				"-b",
+				"mod",
+				currentSnapshot
+			]
+		);
+
+		result = execute(
 			_baseCommand ~ ["add", "."]
 		);
 		if (result.status)
@@ -95,6 +139,136 @@ class Snag {
 				~ result.output
 			);
 
+		result = execute(
+			_baseCommand ~ ["checkout", "master"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to perform intermediate state switching:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ [
+				"merge",
+				"-X",
+				"theirs",
+				"--squash",
+				"mod"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve changes from the new intermediate snapshot:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ ["commit", "-m", "test"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to create backup after acquiring new intermediate snapshot:\n"
+				~ result.output
+			);
+		
+		result = execute(
+			_baseCommand ~ ["branch", "-D", "mod"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Error while deleting temporary intermediate snapshot:\n"
+				~ result.output
+			);
+
 		writeln("Backup was created successfully");
 	}
+
+	void list() {
+		auto result = execute(
+			_baseCommand ~ [
+				"rev-parse", "--short", "HEAD"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve current snapshot information:\n"
+				~ result.output
+			);
+
+		string current = result.output.strip('\n');
+
+		result = execute(
+			_baseCommand ~ [
+				"log",
+				"--all",
+				"--date=format:%Y.%m.%d %H:%M",
+				"--pretty=format:%ad\t%h"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve the list of snapshots:\n"
+				~ result.output
+			);
+
+		result.output.split('\n').each!((e) {
+			auto eArray = e.split('\t');
+			if (current == eArray[1])
+				writefln("    >\t%s\t%s", eArray[0], eArray[1]);
+			else
+				writefln("\t%s\t%s", eArray[0], eArray[1]);
+		});
+	}
+
+	void restore(string hash) {
+		if (!isValidHash(hash))
+			throw new SnagException(
+				"Invalid snapshot hash provided"
+			);
+
+		auto result = execute(
+			_baseCommand ~ ["status", "--porcelain"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"An error occurred while checking the file tracking status:\n"
+				~ result.output
+			);
+
+		if (result.output.length) {
+			result = execute(
+				_baseCommand ~ ["restore", "."]
+			);
+			if (result.status)
+				throw new SnagException(
+					"Failed to reset file changes state:\n"
+					~ result.output
+				);
+		}
+
+		result = execute(
+			_baseCommand ~ [
+				"rev-parse", hash
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"This snapshot is not available in the archive:\n"
+				~ result.output.split('\n')[0]
+			);
+
+		result = execute(
+			_baseCommand ~ [
+				"checkout", hash
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to restore the snapshot state %s:\n"
+				.format(hash, result.output)
+			);
+
+		writeln("Backup was restored successfully");
+	}
 }