by Bruce Harper and Yasser Seirawan (Hardcover) (2008 Chess'n Math Association)

Chess on the Edge is a three-volume hardcover work that contains all of Canadian Grandmaster Duncan Suttles' tournament games found as of the time of writing. The first volume contains 100 games organized by theme ("The Suttles Style", "Pawns", "The Center", etc.), plus 7 supplemental games. The second and third volumes contain another 513 games organized by opening (219 games in Volume 2, 294 games in Volume 3), plus 3 and 4 supplementary games, respectively.

All the games are annotated in depth. There are 628 diagrams in Volume 1, 585 diagrams in Volume 2 and 472 diagrams in Volume 3.

The first volume consists of 100 games, ordered by theme. The authors’ intention is to help the reader explore various positional ideas and strategies, or particularly good or bad results, in a single place. The main goal of the first volume is to help the reader understand Suttles' unique style, but there may be instructional or inspirational value in this volume as well.

The second volume of the three-volume series of Canadian Grand-master Duncan Suttles' games, contains the games which begin with the "A" category of openings, using the opening classification system popularized by the Encyclopedia of Chess Openings. The classification of chess openings is difficult, and doubly so for Suttles' games. After two Anderssen's Openings and a Polish Opening, the reader will enter the labyrinth of "Unnamed Openings", where White plays 1.g3. Only after many games will more familiar English Openings appear, although with many unusual ideas and twists – including transpositions into other openings. The games in this area are sometimes hard to fathom, but they are well worth the effort. The line between Black and White can be blurry in Suttles' games.

The third and final volume of the series of Canadian Grandmaster Duncan Suttles' games contains the games which begin with the "B" to "E" categories of openings, using the opening classification system popularized by the Encyclopedia of Chess Openings. This volume features Suttles' encounters with a variety of Black defenses, including the Nimzowitsch, Center Counter, Alekhine's, Caro-Kann and French. Rats appear in profusion, and Rat players will find much of interest, as well as inspiration, in this volume.