Variety Logic Puzzles - Suguru, Futoshiki 200 Very Hard Puzzles 9x9 vol.4

Suguru, also known as Tectonics or Number Blocks, is a Japanese puzzle invented by Naoki Inaba. The task consists of a rectangular or square grid divided into regions. Each region must be filled with each of the digits from 1 to the number of cells in the region. Also, adjacent (touching) cells should not contain the same number, even diagonally. Futoshiki(from Japanese, literally "not equal"; also known as "Hutoshiki", "Unequal") Place numbers of the given range in the grid 9x9 such that every row and column contains each number exactly once. Inequality constraints must be satisfied. The open end of the sign denotes the greater number.