Stunningly unconvincing sacrifice - yet another loss....

Away to Peterborough this time. From what I felt was a promising position, I decided to allow capture of a Knight as I had looked at what I thought was a strong continuation. Suffice to say it wasn't! The team got crushed as well - the self doubt had crept in for me after some recent shaky results so I thought I would just go for it, gung-ho. Back to square one....