Completed the following sentence: Staunton was also concerned with the lack of time limits on play. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ The weakness of the knockout format, a kind of hybrid between match and tournament play, was eliminated by adopting the round-robin format beginning with the
London 1862 tournament.