Well I tried with -o file command and without and no file was saved when the key was found, then I tried the same in the latest version and it worked perfectly.

This version does not save key text file at all, just tested it, it's broken.

Here it is necessary to load completely (green button " Clone or download ") all in ZIP archive, and then to open archive on the computer?

Whether and there is a combined variant of use of functions " - keyspace " and " -r, - randoom ", i.e. that worked so:

For example - we write -- keyspace 100000000000:500000000000 and -- random OR -- random 100000000000:500000000000 then The search is made only in a range 100000000000:500000000000, but casual (random like a flea or a kangaroo ) by jumps?

Why would you want to search random key space?

as we already know bitcoin puzzle wallets are randomly chhosed by the creater

who has a successful experience of bruteforce attack on private keys?

also ran some checking on the old style electrum seeds with a "modified" word list...

- The transaction originally funding this brainwallet split 1 BTC into neat sets of 0.001 and 0.005 BTC. Could other outputs from this transaction - there are 101 in total - also be brainwallets, or some other kind of special address? Some are still unspent, 7.5 years later.