Version 2.3 is out:

• use magic bitboard for move generation
• retuned evaluation function (still limited to material & positional square table).
• retuned search parameters + probcut added
• much better comments following the D convention
• added logging facilities & eval/board display to better understand how the engine works

This version is bout 20 Elo stronger than version 2.1. Version 2.3 fix a regression introduced in 2.2

Enhanced search:

• better time management on Fisher Time control.
• Retuned search parameters.
• Better move ordering for quiet moves.
• Other tiny optimizations.
• Code simplification.

On self test, Dumb 2.1 is about 70 Elo stronger than Dumb 2.0.

Here is a version 2.0 of Dumb, about 70 Elo stronger than versions 1.9 - 1.11:
New evaluation weights (+50 Elo)
Better move ordering (+20 Elo)
Pseudo move generation (make code simpler, faster but not better)

Hope you enjoy it.

Fix issue #10.

Correct issue#6 (mate 0 score & empty pv) + display of promotion

Dumb version 1.9
Fixed a bug to avoid time losses on Fisher time control (base + increment)
Tuned search parameter using CLOP by Rémi Coulom
A pawn move to the 7th rank is no more considered quiet
Code cleaning

+25 Elo against version 1.8 in self test.

Enhanced search with late move pruning (LMP), a few other optimizations, some code cleaning and bug removals.
Should be about 100 elo stronger than version 1.7.

Correct a bug leading to time losses

Correct a few bugs in 1.6
More accurate depth reduction in null move
IID replaced by IIR

Version 1.6: support chess 960 (aka Fischer Random Chess).