Rob's Puzzle Page - Sliding Block Puzzles
In his 1942 book 100 Puzzles - How to Make and Solve Them, Anthony Filipiak describes and provides solutions for ten "shifting block" puzzles, most of which are covered by Hordern. 19 Block - H.C71 9 Block - H.C19 Dad's Puzzle 5 Block - H.B1 - Sam Loyd's ...