All-nines Collection Four: 150 brain-stretching. Unique, and challenging word puzzles. All answers consist of nine letters with no duplicated letters. Puzzles are suitable for individual and group use.These puzzles are for your enjoyment not to frustrate. Go slowly and savor the results. Reward yourself with those 'AHA' moments. Share with and challenge others. Make it fun. Don't rush the process. Let your brain work on a puzzle for a set period before looking at the answer. There is no rush or time limit. Do not give up too quickly. Improve your vocabulary and knowledge. Words are power.