Recursiveness - Why am I entering a loop?

Question

I’m trying to implement an algorithm called Minimax, but I’m finding problems in effecting its recursion, it goes into a loop that I can’t identify why. The depth of the algorithm should vary according to the moves that are tested, but the depth that occurs is: 5, 4, 3, 2, 1, 0, 0, 0, 0, ... It should return and go out of depth 0, back to 1, and so on, but persists at 0.

By default the initial depth will always be 5. The function verificar_jogadas_possiveis() serves to create a chained list with all possible player moves passed as parameter.

Jogadas *minimax(int tabuleiro[TAM][TAM], int depth, int Player, Jogadas* novaJogada){
    //Fiz esse trecho apenas para checar se o loop persiste
    printf("%d\n", depth);
    Sleep(100);
    // Copy the board for don't change it
    int i, j, copia[TAM][TAM];
    for(i=0; i<=9; i++){
        for(j=0; j<=9; j++){
            copia[i][j] = tabuleiro[i][j];
        }
    }

    copia[novaJogada->lin_dps][novaJogada->col_dps] = copia[novaJogada->lin_atual][novaJogada->col_atual];
    copia[novaJogada->lin_atual][novaJogada->col_atual] = 0;

    if(depth == 0){
        return novaJogada;
    }

    Lista_ia *Moves = inicializarLista();

    verificar_jogadas_possiveis(copia, Moves, Player);

    Jogadas *tmp;

    // Simulating the current Player 2 (Computer) move
    if(Player == 2){
        novaJogada->pontuacao = -9999;

        for(tmp = Moves->head; tmp != NULL; tmp = tmp->prox){

            Jogadas *BestMove = minimax(copia, depth - 1, 1, tmp);

            if(BestMove->pontuacao > novaJogada->pontuacao){
                novaJogada->pontuacao = BestMove->pontuacao;
            }
        }
        LiberarMemoria(Moves);
        return novaJogada;
    }
    // Simulating the best Player 1 move
    else{
        novaJogada->pontuacao = 9999;

        for(tmp = Moves->head; tmp != NULL; tmp = tmp->prox){

            Jogadas *BestMove = minimax(copia, depth - 1, 2, tmp);

            if(BestMove->pontuacao < novaJogada->pontuacao){
                novaJogada->pontuacao = BestMove->pontuacao;
            }
        }
        LiberarMemoria(Moves);
        return novaJogada;
    }
}

Somebody help me figure out the mistake?