Objective-C : all of my array elements have the same value

I have a problem with my class.

I've written a HistoryCard class that store my temporary situation of my array carte but when I restore all of that, they all have the same value and exactly contains the copy of the last situation of my array carte . Going to the debugging area, I found that all of my array's elements have the same address but I can't understand why.

In my gioco I've the array carte of Card that has the actual condition and I want to save the past condition of this array in history

#import "Gioco.h"
#import "HistoryCard.h"

@interface Gioco()

@property (nonatomic,readwrite) int punteggioPartita;
@property (nonatomic,strong) NSMutableArray* carte; // of Card
@property (nonatomic,strong) NSMutableArray* history; // of HistoryCard Class

@end

The array carte contains instances of my class 'Card' .

@interface Card : NSObject

@property (nonatomic) BOOL chosen;
@property (nonatomic) BOOL match;


@end

By UI, when I click on a UIButton , I modify this the property of relative index in array 'carte'. It's works infact my gioco ( game in english ), works perfectly . So I would create a History of my gioco and for this reason, I would "freeze" every changes of my card game and I've written this HistoryCard Class. How you can see, every instances of this class, has this two properties that conserve the state of my game.

#import "Card.h"
@interface HistoryCard : Card

@property (nonatomic,readonly,strong) NSMutableArray* situationAtThisTime; //of Array
@property (nonatomic,readonly) int score;

-(instancetype)initWithCurrentSituation:(NSArray*)currentCardSituation
                        andCurrentScore:(int) scoreSituation;
                        //designer initializzer


@end



#import "HistoryCard.h"
#import "PlayingCard.h"

@interface HistoryCard()

@property (nonatomic,strong,readwrite) NSMutableArray* situationAtThisTime; //of Array
@property (nonatomic,readwrite) int score;

@end

@implementation HistoryCard

-(instancetype)initWithCurrentSituation:(NSMutableArray*)currentCardSituation
                        andCurrentScore:(int) scoreSituation{
    self=[super init];

    if (self) {
        self.situationAtThisTime=[NSMutableArray arrayWithArray:currentCardSituation];
        self.score=scoreSituation;
    }

    return self;
}

@end

When a touch arrives, starts a method in my gioco that changes the value of properties and for this reason I create a instances of HistoryCard that would freeze the actual state of array 'carte' and add it in the array history of my card game

HistoryCard* currentHistory=[[HistoryCard alloc] initWithCurrentSituation:self.carte andCurrentScore:self.punteggioPartita];

[self.history addObject:currentHistory];

The problem is : if my history array contains 3 HistoryCard instances, every of that , has the score property set correctly ( the score of the game in the past ) but the situationAtThisTime array, that are equals for all every instances and exactly contains the copy of the last situation of my array carte . It's like every array that I would save, points to the actual condition of my array carte

I've looking for here and I hadn't found anything that could help me. Only a little help in this question but I've not global variables.

Thank you.

PS I found a personal solution but I don't know if there's a method that would make for me that.

            NSMutableArray* now=[[NSMutableArray alloc]init];
            for (Card*card in self.carte) {
                Card* toSend=[[Card alloc]init];
                toSend.chosen=card.chosen;
                toSend.match=card.match;
                toSend.valore=card.valore;
                [now addObject:toSend];
            }

HistoryCard* currentHistory=[[HistoryCard alloc]initWithCurrentSituation:now
    andCurrentScore: self.punteggioPartita];

            [self.history addObject:currentHistory];

In this case I'm coping all of properties in a new instances of card.