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from __future__ import annotations
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import random
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import math
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- from square import Square
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- from typing import List , final , Set
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+ from typing import final , Set
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from __static__ import int64 , Array , CheckedList , cbool , box
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import time
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#PASS: int64 = -1
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MAXMOVES : int = 9 * 9 * 3 #bg#SIZE*SIZE*3
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TIMESTAMP : int = 0
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- #MOVES: int64 = 0
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+ MOVES : int = 0
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+
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+ def to_pos (x : int64 , y : int64 ) -> int64 :
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+ return y * 9 + x # SIZE + x
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+
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+ @final
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+ class Square :
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+ def __init__ (self : Square , board : Board , pos : int ) -> None :
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+ self .board : Board = board
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+ self .pos : int64 = int64 (pos )
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+ self .timestamp : int = TIMESTAMP
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+ self .removestamp : int = TIMESTAMP
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+ self .zobrist_strings : Array [int64 ] = Array [int64 ](3 )
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+ for ii in range (3 ):
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+ self .zobrist_strings [ii ] = int64 (random .randrange (9223372036854775807 ))
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+ self .color : int64 = 0
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+ self .reference : Square = self
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+ self .ledges : int64 = 0
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+ self .used : cbool = False
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+ self .neighbours : CheckedList [Square ] = CheckedList [Square ]([])
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+ self .temp_ledges : int64 = 0
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+
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+
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+ def set_neighbours (self : Square ) -> None :
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+ x : int64 = self .pos % 9 ## SIZE
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+ y : int64 = self .pos // 9 ## SIZE
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+ self .neighbours = []
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+ for dx , dy in [(- 1 , 0 ), (1 , 0 ), (0 , - 1 ), (0 , 1 )]:
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+ newx : int64 = x + int64 (dx )
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+ newy : int64 = y + int64 (dy )
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+ if 0 <= newx < 9 and 0 <= newy < 9 : ## 9 = SIZE
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+ bbb : Square = self .board .squares [to_pos (newx , newy )]
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+ self .neighbours .append (bbb )
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+
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+
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+
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+ def move (self : Square , color : int64 ) -> None :
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+ global TIMESTAMP , MOVES
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+ TIMESTAMP += 1
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+ MOVES += 1
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+ self .board .zobrist .update (self , color )
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+ self .color = (color )
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+ self .reference = self
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+ self .ledges = int64 (0 )
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+ self .used = True
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+ for neighbour in self .neighbours :
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+ neighcolor : int64 = neighbour .color
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+ if neighcolor == 0 : ## bg EMPTY:
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+ self .ledges += 1
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+ else :
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+ neighbour_ref : Square = neighbour .find (True )
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+ if neighcolor == self .color :
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+ if neighbour_ref .reference .pos != self .pos :
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+ self .ledges += neighbour_ref .ledges
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+ neighbour_ref .reference = self
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+ self .ledges -= 1
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+ else :
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+ neighbour_ref .ledges -= 1
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+ if neighbour_ref .ledges == 0 :
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+ neighbour .remove (neighbour_ref , True )
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+ self .board .zobrist .add ()
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+
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+ def remove (self : Square , reference : Square , update : bool ) -> None :
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+ self .board .zobrist .update (self , 0 ) #bg EMPTY
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+ self .removestamp = TIMESTAMP
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+ if update :
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+ self .color = 0 #bg EMPTY
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+ self .board .emptyset .add (self .pos )
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+ # if color == BLACK:
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+ # self.board.black_dead += 1
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+ # else:
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+ # self.board.white_dead += 1
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+ for neighbour in self .neighbours :
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+ if neighbour .color != 0 and cbool (neighbour .removestamp != TIMESTAMP ): # bg 0 = EMPTY
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+ neighbour_ref : Square = neighbour .find (update )
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+ if neighbour_ref .pos == reference .pos :
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+ neighbour .remove (reference , update )
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+ else :
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+ if update :
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+ neighbour_ref .ledges += 1
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+
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+ def find (self : Square , update : bool ) -> Square :
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+ reference : Square = self .reference
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+ if reference .pos != self .pos :
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+ reference = reference .find (update )
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+ if update :
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+ self .reference = reference
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+ return reference
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#@fields({'empties':List(int)
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# ,'board':{'useful':Function(NamedParameters([('pos',int)])
@@ -27,16 +113,16 @@ class EmptySet:
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def __init__ (self , board : Board ) -> None :
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self .board : Board = board
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S2 = 9 * 9 #bg#SIZE*SIZE
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- self .empties : CheckedList [int64 ] = CheckedList [ int64 ]([]) #TODO Array[int64](S2)
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+ self .empties : Array [int64 ] = Array [int64 ](S2 )
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self .empty_pos : Array [int64 ] = Array [int64 ](S2 )
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for kk in range (S2 ):
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ii : int64 = int64 (kk )
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- self .empties . append ( ii )
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+ self .empties [ ii ] = ii
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self .empty_pos [ii ] = ii
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#def random_choice(self:EmptySet)->int:
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def random_choice (self ) -> int64 :
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- choices : int64 = int64 (len (self .empties ))
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+ choices : int64 = int64 (len (self .empties )) # TODO ... optional ?!
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while choices :
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i : int64 = int64 (int (random .random ()* box (choices )))
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pos = self .empties [i ]
@@ -50,12 +136,12 @@ def random_choice(self) -> int64:
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#def add(self:EmptySet, pos:int)->Void:
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def add (self , pos : int64 ) -> None :
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self .empty_pos [pos ] = int64 (len (self .empties ))
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- self .empties . append ( pos )
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+ self .empties [ pos ] = pos # TODO append
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#def remove(self:EmptySet, pos:int, update:bool)->Void:
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- def remove (self , pos : int , update : bool ) -> None :
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+ def remove (self , pos : int64 , update : bool ) -> None :
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self .set (self .empty_pos [pos ], self .empties [len (self .empties )- 1 ])
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- self .empties .pop ()
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+ # self.empties.pop() # TODO pop
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#def set(self:EmptySet, i:int, pos:int)->Void:
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def set (self , i : int64 , pos : int64 ) -> None :
@@ -67,15 +153,15 @@ def set(self, i: int64, pos: int64) -> None:
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class ZobristHash :
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#def __init__(self:ZobristHash, board:{'squares':List(Square)})->Void:
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def __init__ (self , board : Board ) -> None :
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- self .hash_set : Set [int ] = set ()
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+ self .hash_set : Set [int ] = set () # TODO no Set?
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self .hash : int = 0
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for square in board .squares :
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self .hash ^= square .zobrist_strings [0 ] #bg# EMPTY
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self .hash_set .clear ()
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self .hash_set .add (self .hash )
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#def update(self:ZobristHash, square:Square, color:int)->Void:
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- def update (self , square : Square , color : int ) -> None :
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+ def update (self , square : Square , color : int64 ) -> None :
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self .hash ^= square .zobrist_strings [square .color ]
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self .hash ^= square .zobrist_strings [color ]
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@@ -99,13 +185,13 @@ def dupe(self) -> bool:
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class Board :
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#def __init__(self:Board)->Void:
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def __init__ (self ) -> None :
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- self .squares : List [Square ] = []
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+ self .squares : CheckedList [Square ] = CheckedList [ Square ]([])
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self .emptyset : EmptySet = EmptySet (self )
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self .zobrist : ZobristHash = ZobristHash (self )
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- self .color : int = 2 #bg#BLACK
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+ self .color : int64 = 2 #bg#BLACK
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self .finished : bool = False
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self .lastmove : int64 = - 2
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- self .history : List [int ] = []
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+ self .history : CheckedList [int ] = CheckedList [ int ]([])
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self .white_dead : int = 0
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self .black_dead : int = 0
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#bgWHYYY#self.squares = [Square(self, pos) for pos in range(9*9)] #bg#SIZE*SIZE)
@@ -193,16 +279,16 @@ def useful(self, pos: int64) -> int:
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(empties or weak_opps or (strong_neighs and (strong_opps or weak_neighs )))
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#def useful_moves(self:Board)->List(int):
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- def useful_moves (self ) -> List [ int64 ]:
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- return [ pos for pos in self .emptyset .empties if self .useful (pos )]
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+ def useful_moves (self ) -> CheckedList [ int ]:
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+ return CheckedList [ int ]([ pos for pos in self .emptyset .empties if self .useful (pos )])
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#def replay(self:Board, history:List(int))->Void:
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def replay (self , history : Array [int64 ]) -> None :
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for pos in history :
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self .move (pos )
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#def score(self:Board, color:int)->float:
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- def score (self , color : int ) -> float :
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+ def score (self , color : int64 ) -> float :
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if color == 1 : #bg#WHITE
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count = 7.5 + self .black_dead #bg#KOMI
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else :
@@ -232,7 +318,7 @@ def check(self) -> None:
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changed = False
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for member in members1 .copy ():
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for neighbour in member .neighbours :
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- if neighbour .color == square .color and neighbour not in members1 :
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+ if int64 ( neighbour .color ) == square .color and cbool ( neighbour not in members1 ) :
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changed = True
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members1 .add (neighbour )
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ledges1 = 0
@@ -245,20 +331,21 @@ def check(self) -> None:
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members2 = set ()
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for square2 in self .squares :
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- if square2 .color != 0 and square2 .find (False ) == root : #bg#EMPTY
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+ if square2 .color != 0 and cbool ( square2 .find (False ) == root ) : #bg#EMPTY
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members2 .add (square2 )
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ledges2 = root .ledges
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- assert members1 == members2
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- assert ledges1 == ledges2 , ('ledges differ at %r: %d %d' % (square , ledges1 , ledges2 ))
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+ # TODO
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+ # assert members1 == members2
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+ # assert ledges1 == ledges2, ('ledges differ at %r: %d %d' % (square, ledges1, ledges2))
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empties1 = set (self .emptyset .empties )
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empties2 = set ()
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for square in self .squares :
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if square .color == 0 : #bg#EMPTY
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- empties2 .add (square .pos )
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+ empties2 .add (box ( square .pos ) )
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#@fields({'pos':int, 'wins':int, 'losses':int})
@@ -270,16 +357,16 @@ def __init__(self) -> None:
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self .pos : int64 = - 1
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self .wins : int64 = 0
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self .losses : int64 = 0
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- self .pos_child : List [None | UCTNode ] = [None for x in range (9 * 9 )] #bg#SIZE*SIZE
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+ self .pos_child : CheckedList [None | UCTNode ] = CheckedList [None | UCTNode ]([ None for x in range (9 * 9 )]) #bg#SIZE*SIZE
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self .parent : None | UCTNode = None
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- self .unexplored : List [ int64 ] = []
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+ self .unexplored : CheckedList [ int ] = CheckedList [ int ]([])
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#def play(self:UCTNode, board:Board)->Void:
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def play (self , board : Board ) -> None :
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""" uct tree search """
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- color : int = board .color
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+ color : int = box ( board .color )
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node : UCTNode = self
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- path : List [UCTNode ] = [ node ]
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+ path : CheckedList [UCTNode ] = CheckedList [ UCTNode ]([ node ])
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pos : int64 = 0
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while True :
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pos = node .select (board )
@@ -322,7 +409,7 @@ def random_playout(self, board: Board) -> None:
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board .move (board .random_move ())
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#def update_path(self:UCTNode, board:Board, color:int, path:List(UCTNode))->Void:
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- def update_path (self , board : Board , color : int , path : List [UCTNode ]) -> None :
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+ def update_path (self , board : Board , color : int , path : CheckedList [UCTNode ]) -> None :
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""" update win/loss count along path """
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wins = board .score (2 ) >= board .score (1 ) #bg#BLACK #bg#WHITE
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for node in path :
@@ -332,8 +419,11 @@ def update_path(self, board: Board, color: int, path: List[UCTNode]) -> None:
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node .wins += 1
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else :
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node .losses += 1
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- if node .parent :
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- node .parent .bestchild = node .parent .best_child ()
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+ if node .parent is not None :
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+ mypar = node .parent
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+ bc = mypar .best_child ()
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+ if node .parent is not None :
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+ node .parent .bestchild = bc
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#def score(self:UCTNode)->float:
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def score (self ) -> float :
@@ -349,7 +439,7 @@ def score(self) -> float:
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return winrate + math .sqrt ((math .log (parentvisits ))/ (5 * nodevisits ))
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#def best_child(self:UCTNode)->UCTNode:
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- def best_child (self ) -> UCTNode :
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+ def best_child (self ) -> None | UCTNode :
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maxscore = - 1
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maxchild = None
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for child in self .pos_child :
@@ -359,12 +449,13 @@ def best_child(self) -> UCTNode:
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return maxchild
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#def best_visited(self:UCTNode)->UCTNode:
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- def best_visited (self ) -> UCTNode :
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- maxvisits = - 1
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+ def best_visited (self ) -> None | UCTNode :
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+ maxvisits : int64 = - 1
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maxchild = None
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for child in self .pos_child :
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- if child and (child .wins + child .losses ) > maxvisits :
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- maxvisits , maxchild = (child .wins + child .losses ), child
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+ if child is not None and box ((child .wins + child .losses ) > maxvisits ):
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+ maxvisits = (child .wins + child .losses )
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+ maxchild = child
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return maxchild
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#def computer_move(board:{'useful_moves':Function([], List(int)),
@@ -387,7 +478,10 @@ def computer_move(board: Board) -> int:
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nboard .reset ()
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nboard .replay (ahist )
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node .play (nboard )
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- return box (tree .best_visited ().pos )
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+ bvv = tree .best_visited ()
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+ if bvv is not None :
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+ return box (bvv .pos )
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+ return - 1
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ITERATIONS = 2
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