how each molecule had so many possibilities open to it, possibilities for bonding, bonds of different strengths, from carbon the most versatile, the queen, “the Great Catherine of the periodic table,” down to the little hydrogens numerous and single-moving as pawns . . . and the brute opposition of the chessboard yielding, in this chemical game, to dance-figures in three dimensions, “four, if you like,” and a radically different idea of what winning and losing meant. . .
