Novello is a Java othello engine. It is the internal engine for NBoard, a Java Othello GUI.

It's easiest to build Novello using maven.

Novello uses a 'Search object' to perform a game-tree search. Search objects are single-threaded but may be reused after they have completed a search. There are two kinds of Search objects: MidgameSearch, which performs a midgame tree search with evaluation and MPC; and Solver, which performs a full-width search until the end of the game.

When doing a midgame search, and also when doing a probable solve, Novello calls MidgameSearcher. When doing a probable solve the MidgameSearcher will, in fact, call the Solver for the last few nodes (it's almost as quick to do a solve as it is to do a mid game evaluation, and it's obviously more accurate).

For a proven endgame search (no mpc, search every line to the end of the game), Novello calls Solver. Solver in turn creates a MidgameSearcher which is used to evaluate moves for use in the move-sorting algorithm.