Connect to this mining pool using your wallet address as the username to "solo mine" for the block reward + transaction fees, minus a small percentage (currently 4%) to cover costs. There is no registration required to use the pool. Should you happen to find a block, payments are made automatically to your Bitcoin address.
This is a great way to utilize older hardware for playing the "lottery". Just set and forget. Then perhaps one day you'll find a nice little surprise in your wallet.
The system is still under constant development and improvements are always being added. Currently you can view global and personal stats.
Shares are used only for collecting stats and the difficulty is set to VARDIFF. Shares have no effect on your earnings.