In 2009, Martin Schneider computed the grundy values up to the 3 &times; 9, 4 &times; 5 and 5 &times; 7 boards [REF].
The table below details the known results for boards with both dimensions greater than 3. Since the value of an n &times; m board is the same as the value of a m &times; n board, we give only the upper part of the table.