Logo generated by Bing Image Creator
Aurora is an actively developed UCI (Universal Chess Interface) compatible chess engine. This means that Aurora is a command-line-based engine and you will need a UCI-Compatible GUI in order to intuitively use Aurora. See the "Usage" section below for usage instructions.
See Playing Strength Testing for Aurora's playing strength.
To use Aurora, simply download a binary from the latest release, for example on Windows you would download aurora-x-windows.exe, where x is the version of the latest release. Go to a chess GUI of your choice, and find instructions for adding engines, and add this binary.
If you want to build Aurora from the source code, download the source code, navigate to the directory, and run
makeYou should now have a file named aurora.exe, which is the engine. Now go to your GUI and find instructions for adding engines. When the GUI prompts you to choose a file/engine, choose aurora.exe.
See an explanation of all the options on the wiki
Aurora uses a UCT (Upper Confidence Bounds applied to Trees) search with an NNUE (Efficiently Updatable Neural Network)
Here are some details about the search:
- Builds a search tree with nodes
- Nodes to expand are selected with UCT
- Values backpropagated up the tree are done so with minimax
A NNUE trained with bullet and options (the options are for andromeda-3.nnue):
- Arch: (768->256)x2->1
- Scale: 400
- Batch Size: 16384
- Batches / Superbatch: 6104
- Positions / Superbatch: 100007936
- Superbatches: 88
- WDL scheduler: constant 0.0
- LR scheduler: start 0.001 gamma 0.1 drop every 44 superbatches
- Device: NVIDIA GeForce MX550
- Threads: 4
- Positions: 154143704