diff --git a/GTP/game.py b/GTP/game.py
deleted file mode 100644
index 2d76a7d..0000000
--- a/GTP/game.py
+++ /dev/null
@@ -1,192 +0,0 @@
-# -*- coding: utf-8 -*-
-# vim:fenc=utf-8
-# $File: game.py
-# $Date: Tue Nov 28 14:4726 2017 +0800
-# $Author: renyong15 © <mails.tsinghua.edu.cn>
-#
-from __future__ import print_function
-import utils
-import copy
-
-'''
-(1, 1) is considered as the upper left corner of the board,
-(size, 1) is the lower left
-'''
-
-DELTA = [[1, 0], [-1, 0], [0, -1], [0, 1]]
-
-
-class Executor:
-    def __init__(self, **kwargs):
-        self.game = kwargs['game']
-
-    def _bfs(self, vertex, color, block, status, alive_break):
-        block.append(vertex)
-        status[self.game._flatten(vertex)] = True
-        nei = self._neighbor(vertex)
-        for n in nei:
-            if not status[self.game._flatten(n)]:
-                if self.game.board[self.game._flatten(n)] == color:
-                    self._bfs(n, color, block, status, alive_break)
-
-    def _find_block(self, vertex, alive_break=False):
-        block = []
-        status = [False] * (self.game.size * self.game.size)
-        color = self.game.board[self.game._flatten(vertex)]
-        self._bfs(vertex, color, block, status, alive_break)
-
-        for b in block:
-            for n in self._neighbor(b):
-                if self.game.board[self.game._flatten(n)] == utils.EMPTY:
-                    return False, block
-        return True, block
-
-    def _is_qi(self, color, vertex):
-        nei = self._neighbor(vertex)
-        for n in nei:
-            if self.game.board[self.game._flatten(n)] == utils.EMPTY:
-                return True
-
-        self.game.board[self.game._flatten(vertex)] = color
-        for n in nei:
-            if self.game.board[self.game._flatten(n)] == utils.another_color(color):
-                can_kill, block = self._find_block(n)
-                if can_kill:
-                    self.game.board[self.game._flatten(vertex)] = utils.EMPTY
-                    return True
-
-        ### can not suicide
-        can_kill, block = self._find_block(vertex)
-        if can_kill:
-            self.game.board[self.game._flatten(vertex)] = utils.EMPTY
-            return False
-
-        self.game.board[self.game._flatten(vertex)] = utils.EMPTY
-        return True
-
-    def _check_global_isomorphous(self, color, vertex):
-        ##backup
-        _board = copy.copy(self.game.board)
-        self.game.board[self.game._flatten(vertex)] = color
-        self._process_board(color, vertex)
-        if self.game.board in self.game.history:
-            res = True
-        else:
-            res = False
-
-        self.game.board = _board
-        return res
-
-    def _in_board(self, vertex):
-        x, y = vertex
-        if x < 1 or x > self.game.size: return False
-        if y < 1 or y > self.game.size: return False
-        return True
-
-    def _neighbor(self, vertex):
-        x, y = vertex
-        nei = []
-        for d in DELTA:
-            _x = x + d[0]
-            _y = y + d[1]
-            if self._in_board((_x, _y)):
-                nei.append((_x, _y))
-        return nei
-
-    def _process_board(self, color, vertex):
-        nei = self._neighbor(vertex)
-        for n in nei:
-            if self.game.board[self.game._flatten(n)] == utils.another_color(color):
-                can_kill, block = self._find_block(n, alive_break=True)
-                if can_kill:
-                    for b in block:
-                        self.game.board[self.game._flatten(b)] = utils.EMPTY
-
-    def is_valid(self, color, vertex):
-        ### in board
-        if not self._in_board(vertex):
-            return False
-
-        ### already have stone
-        if not self.game.board[self.game._flatten(vertex)] == utils.EMPTY:
-            return False
-
-        ### check if it is qi
-        if not self._is_qi(color, vertex):
-            return False
-
-        if self._check_global_isomorphous(color, vertex):
-            return False
-
-        return True
-
-    def do_move(self, color, vertex):
-        if not self.is_valid(color, vertex):
-            return False
-        self.game.board[self.game._flatten(vertex)] = color
-        self._process_board(color, vertex)
-        self.game.history.append(copy.copy(self.game.board))
-        return True
-
-
-class Game:
-    def __init__(self, size=19, komi=6.5):
-        self.size = size
-        self.komi = 6.5
-        self.board = [utils.EMPTY] * (self.size * self.size)
-        self.strategy = None
-        self.executor = Executor(game=self)
-        self.history = []
-
-    def _flatten(self, vertex):
-        x, y = vertex
-        return (y - 1) * self.size + (x - 1)
-
-    def clear(self):
-        self.board = [utils.EMPTY] * (self.size * self.size)
-
-    def set_size(self, n):
-        self.size = n
-        self.clear()
-
-    def set_komi(self, k):
-        self.komi = k
-
-    def check_valid(self, vertex):
-        return True
-
-    def do_move(self, color, vertex):
-        if vertex == utils.PASS:
-            return True
-        res = self.executor.do_move(color, vertex)
-        return res
-
-    def gen_move(self, color):
-        # move = self.strategy.gen_move(color)
-        # return move
-        return utils.PASS
-
-    def status2symbol(self, s):
-        pool = {utils.WHITE: '#', utils.EMPTY: '.', utils.BLACK: '*', utils.FILL: 'F', utils.UNKNOWN: '?'}
-        return pool[s]
-
-    def show_board(self):
-        row = [i for i in range(1, 20)]
-        col = ' abcdefghijklmnopqrstuvwxyz'
-        print(' ', end='')
-        for j in range(self.size + 1):
-            print(col[j], end='    ')
-
-        print('\n')
-        for i in range(self.size):
-            print(row[i], end='    ')
-            if row[i] < 10:
-                print(' ', end='')
-            for j in range(self.size):
-                print(self.status2symbol(self.board[self._flatten((j + 1, i + 1))]), end='    ')
-            print('\n')
-
-
-if __name__=="__main__":
-    g = Game()
-    g.show_board()
\ No newline at end of file
diff --git a/GTP/utils.py b/GTP/utils.py
deleted file mode 100644
index c4114a3..0000000
--- a/GTP/utils.py
+++ /dev/null
@@ -1,19 +0,0 @@
-# -*- coding: utf-8 -*-
-# vim:fenc=utf-8
-# $File: utils.py
-# $Date: Mon Nov 27 18:2755 2017 +0800
-# $Author: renyong15 © <mails.tsinghua.edu.cn>
-#
-
-WHITE = -1
-EMPTY = 0
-BLACK = +1
-FILL = +2
-KO = +3
-UNKNOWN = +4
-
-PASS = (0,0)
-RESIGN = "resign"
-
-def another_color(color):
-    return color * -1