I third that choice. The French went to war without a unified strategy. The king was no dope, but he was mainly interested in his mistresses, so each branch of the government went their own way. Frederick invaded, made a separate peace, invaded again as the Machiavellian whim took him. You can see how almost every hand was against him in the next war.
Some wag, seeing Marshal de Saxe strolling in the Tuileries Gardens with Madame de Pompadour, said "there is the King's sword, and his scabbard".
Frederick was soundly whipped when he invaded Bohemia, without a major battle fought. After, he owned that he had been schooled by Charles of Lorraine's chief of staff, Marshal Traun. Kolin was the first battle he lost, but not his first thrashing.