Here is an absolutely fantastic puzzle that arrived within a game. I haven't used computers, but I've tried playing this out many times and I can't see a way for white to avoid checkmate with the (2.5 pnt + pieces) in play here for black still on the board at checkmate.

If someone wants to computer analyze this, please do so and share of the outcome.

forced:

this is one possible outcome.  I analyzed many others and they all lead to a mate.

1. Rg1 Re2+ 2. Kd4 Rd8+ 3. Kc4 Be6+ 4. Kb5 (4. Kc5 a6 5. b5 Rb2 6. b6 cxb6#) Bd7+5. Kc4 (5. Ka5 b6+ 6. Ka6 c6 7. Rd1 Bc8#) Ba4 6. b5 Re4+ 7. Kc5 b6+ 8. Kc6 Rc4#