Crack the Safe: Level 2
One little twist changes everything!
Level 2 is very similar to Level 1...but tougher! There is with one important difference: digits can now be repeated in the combination. This adds a bit more complexity, and requires an extra level of reasoning for the solution process.
Inside, you will find 31 unique puzzles, each containing a 3-digit combination lock, and increasing in difficulty from start to finish.
Full description below.
This book consists of 31 puzzles, as well as detailed solution tutorials. Each puzzle involves finding the correct combination for a combination lock, given certain clues regarding the "closeness" of some incorrect guesses.
The puzzles progress in order from easiest to more difficult. All lock combinations in this Level 2 book contain three digits, which may or may not be unique. Repeated digits are allowed.