Cuckarooz29 is a new mining algorithm used by Grin that switched to it on block 786240 in mid-July 2020. In comparison to the previous algorithm CuckARoom29, the new one has been slightly changed in order to prevent ASIC manufacturers from creating new models. This way the network will remain more decentralized. Cuckarooz29 works better on Nvidia graphics cards.
Cuckarooz29 is the main algorithm used for Grin mining. Unlike Cuckatoo31 and Cuckatoo32 it doesn’t require very powerful GPU’s. If your hardware could mine multiple Grin algorithms we highly recommend you check the profitability of each algorithm separately as it is usually different.