I spend a great deal of my time selecting endgames studies, both for solving tournaments and for my column in CHESS. Many of those I investigate turn out to be unsound, as pointed out by my computer. In this section of the website, I shall publish those unsound studies for the general interest of other enthusiasts and in the hope that somebody, somewhere, will attempt corrections. Please contact me if you find any fault in any analysis here or if you have published any corrections to any of the studies listed here. However, please remember that neither I, nor my computer, has time to test any other material.