4chan key:
6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc

https://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc


Clover supports the fallback method (for now)

Stuff
https://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc
into an iframe


add an input field named
g-recaptcha-response