fwrite(&black_elo, sizeof(black_elo), 1, outputfile);
fwrite(&opening, sizeof(opening), 1, outputfile);
fwrite(×tamp, sizeof(timestamp), 1, outputfile);
fwrite(&black_elo, sizeof(black_elo), 1, outputfile);
fwrite(&opening, sizeof(opening), 1, outputfile);
fwrite(×tamp, sizeof(timestamp), 1, outputfile);