The ABC View printed puzzle is available in the following formats:
5 x 5 - Puzzle 1
5 x 5 - Puzzle 2
5 x 5 - Puzzle 3
5 x 5 - Puzzle 4
5 x 5 - Puzzle 5
5 x 5 - Puzzle 6
Each row and column requires exactly one A, B and C (and two blank squares). The clues around the edge tell you which letter appears first in that direction in that row or column. What are the letters around the edge for? These tell you which letter appears first in that row or column. X can be used to indicate a blank square (as could any other letter).
This is the start of the puzzle. There are a number of different approaches to solving ABC View puzzles, this is just the one I used to solve this particular puzzle.
The C cannot go in any of these squares in Row 5 because the clues across the bottom could not be satisfied.
Therefore this square has to be A to satisfy the left clue.
Similarly these squares cannot be B (because of the bottom clues), which allows Row 5 to be completed.
These two squares in Row 5 have been marked with an X to distinguish them from the other empty squares (this isn't required to solve the puzzle though). The A in Row 1 cannot go in either of these two squares because of the top clues.
In addition, the A in Row 1 cannot go in these squares either, because the bottom clues could not be satisfied (since there would be a B or a C in the way). Therefore the A goes in Column 4.
Which means that this square is X (because of the right clue).
Column 5 now has exactly three spaces for the A, B and C, so this square can only be A (to satisfy the bottom clue).
Which means that the B and C in Column 5 can only go one way around (because of the right clue).
The A in Column 3 cannot go in these squares as there is already an A in Row 1 and Row 4.
Nor can the A in Column 2 go in this square because the bottom clue could not be satisfied (as there would be a B or a C in the way). Therefore the A goes in Row 3, and Row 4 is X (because of the bottom clue).
The B and C in Column 3 can go one way around as Row 2 already has its C.
The B in Row 1 can only go in one place to satisfy the top clues.
The A in Row 2 can only go in one place (because of the A's in Column 1 and Column 4).
The B and C in Column 1 can only go one way around to satisfy the left clue. Column 2 is also complete.
The puzzle will now complete as there is only one place for the C in Row 4.
The completed puzzle.