sp9

elif event.type == KEYUP:
                lives -= 1
                key_pressed = True
                if event.key in (K_LEFT, K_a) and is_valid_move(LEFT):
                    move = LEFT
                    (boxx,boxy) = (BLANK[0]+1,BLANK[1])
                elif event.key in (K_RIGHT, K_d) and is_valid_move(RIGHT):
                    move = RIGHT
                    (boxx,boxy) = (BLANK[0]-1,BLANK[1])
                elif event.key in (K_UP, K_w) and is_valid_move(UP):
                    move = UP
                    (boxx,boxy) = (BLANK[0],BLANK[1]+1)
                elif event.key in (K_DOWN, K_s) and is_valid_move(DOWN):
                    move = DOWN
                    (boxx,boxy) = (BLANK[0],BLANK[1]-1)        
      
        draw_boxs(BOARD,boxs) 
        if (boxx,boxy) != (None,None) and (mouse_clicked or key_pressed) and (boxx,boxy) != BLANK :
            anim_side(boxs,boxx,boxy,move)
            boxs[BLANK[0]][BLANK[1]].num = boxs[boxx][boxy].num
            boxs[BLANK[0]][BLANK[1]].is_blank = False
            boxs[boxx][boxy].move_to(move)