Re: a4v17 - Two possible solutions
I checked this now, and am happy to see that my solver is working correctly,
and that this twin should never have been accepted for the book...
Will check the logs next.
Also, the nice thing about selling this book as a PDF (so far), is that I can send everyone an updated copy once done,
and of course put an updated version online
edit: this has been done now, and thanks to
clm for the suggested correction.
I've also double-checked the other twins in the book, they're all ok