Pencil and Paper Puzzles: Four Kinds and How to Solve Them
Pencil and paper puzzles explained: placement on a board, tours, grid deduction and liar tables, each with a solved example and a first step.
Riddle10 blog
Articles about knights tour
How to Solve the Knight's Tour Puzzle, Step by Step
Visit every square once with a knight: the move, open and closed tours, the colour rule, a smart rule of thumb, and fully worked 5x5, 6x6 and 8x8 tours.