Find configuration of 40 non-attacking grasshoppers on an 13x13 toroidal chessboard!
New record 45 G's found by Pavel Kamenik (16.5.2011)
Final standings (31.5.2011)
13x13 45 G's (Pavel Kamenik, 16.5.2011)
13x13 45 G's (Luis Miguel Martín, 19.5.2011, another position)
11x11 32 G's (Pavel Kamenik, Cornel Pacurar)
Generally if n is odd >9, (n-3)(n+5)/4 (Pavel Kamenik)
New configurations of grasshoppers will be added into fourth edition of my book Non-attacking chess pieces, which will be published 15.6.2011.