229 problems by the author in 5 Sections: 97 x 2-ers (favourite themes: correction, black/white correspondence, Nowotny and Anti-Nowotny, masked interferences); 5 x n-ers, 19 x h#s, 58 x duplex h#s, 50 x fairies (favourite genre Superpins). Separate introductions to each Section, and personal commentaries for all problems.