Only legal move: 58. Qxb7+
+1! Qxb7+
Normally I would resign here but there may be some players who might learn something by seeing a few more moves.
Opposition is our goal but we cannot achieve it. We want to play Kg6 when white plays Kxg4 but are too slow to do it.
Qxb7+: 3 votes (Morecoin Freeman, marcus1986, XMRpromotions)
Qxb7+ for me as well. I would resign the moment we fail to achieve opposition.

Qxb7+: 3 votes (Morecoin Freeman, marcus1986, XMRpromotions, jjacob)