After 16 ... bXc5 black is lost and it can't really be finished quicker.
16. QXQ would fight on with some chances .e.g 17. RfXd1+ .. Kc7, 18. Be4 .. Ra-d8, 19 b4 when white is an extra (passed) pawn up and should win.
I think the key position you are thinking about is after 12 ... Kd8 and 13.dc seems the most obvious try. After 13. ... QxQ 14. RXQ+ .. Kc7 15. cb .. ab 16. 0-0 .. Rd8 and white is a P up and should win. I don't see any forced lines here that win more material by force but only spent a few moments on this.
Originally posted by Dragon Fire After 16 ... bXc5 black is lost and it can't really be finished quicker.
16. QXQ would fight on with some chances .e.g 17. RfXd1+ .. Kc7, 18. Be4 .. Ra-d8, 19 b4 when white is an extra (passed) pawn up and should win.
I think the key position you are thinking about is after 12 ... Kd8 and 13.dc seems the most obvious try. After 13. ... QxQ 14. RXQ+ ...[text shortened]... ee any forced lines here that win more material by force but only spent a few moments on this.