What we the people are demanding are insanely hard puzzles. Not an enumeration of hard games on the 6x6 board, but a heuristic generator for the 7x7 or the 8x8

What we the people are demanding are insanely hard puzzles. Not an enumeration of hard games on the 6x6 board, but a heuristic generator for the 7x7 or the 8x8 or even the 10x10 if need may be, of games that seem utterly intractable for the first few hours.