Jean_Luc, I want to look at the table which is saved to workfile. But as I understood, only 128bit are saved for X-coordinate and 126bit for distance (together with 1 bit for sign and 1 bit for kangaroo type).

Anyway, what is the easiest way to receive the whole table in txt format. I easily could read from binary file the head, dp, start/stop ranges, x/y coordinates for key. After that the hash table is saved with a lot of 0 bytes....
Can you just briefly describe the hash table structure which is saved to binary file?