This is with a language opening by the way
Duo?

I just beat him twice. I think the strength of Duo depends on the opening that you play. In my second game, I played the Reti Opening and he played horribly(estimated rating said 650?), whereas in my first game, I played a King's Indian and he put up a good fight.

I just beat him twice. I think the strength of Duo depends on the opening that you play. In my second game, I played the Reti Opening and he played horribly(estimated rating said 650?), whereas in my first game, I played a King's Indian and he put up a good fight.
Yes but not quite. It is usually based one the opening but so far the language openings are the only ones that make him stronger. When comparing the Reti with the KID, playing as white is playing better than playing as black.

day 1,740,563,054,675,077,406,753,478,505,754,056,590,465,696,634,895,654,954,659,648,945,6384,060,256,134,264,856,970,886,675,456,344,342,232,342,564,657,668,979,707,060,594,834,653,536,495,578,587,576,576,575,634,547,634,786,523,475,786,583,465,645,665,765,648,563,475,673,457,469,590,510,561,001,678,415,157,346,157,345,457,846,534,591,835,786,597,295,234,956,478 on trying to beat duo. (i lost my sanity on day 1,740,563)
it is impossible
Possible