16 Expert Against Oracle A. J. Roycroft

It is given by them without supporting analysis but with the statement that the bishops'cannot win if the weaker side can obtain a position similar to the above, but they win in most cases'. The second position, a win, is then given with a solution and a number of supporting variations extending to 14 moves. One or other of both positions is repeated in the subsequent literature up to 1983 (e.g.