Austerlitz is a mediocre Polish chess engine written from scratch fully in C++ language for about 6 months, since July 2023. For this moment, Austerlitz supports basic UCI commands, including hash table manipulation and other debug-purpose commands. Basing on hand-crafted evaluation, min-max search with alpha-beta pruning framework and other optimization techniques, Austerlitz v1.4.0 got earlier 2000+ ELO rank on lichess.

Austerlitz finds best move for given position generating min-max search and picking best move based on HCE - static, hand crafted evaluation routine.

• Iterative Deepening
• Aspiration Windows
• Principal Variation Search
• Quiscence Search
• Global Transposition Table
  • Depth-preferred replacement scheme
  • Aging, no buckets
• Move Ordering
  • MVV/LVA + Static Exchange Evaluation
  • Hash Move Ordering
  • Killer Heuristics
  • Countermove Heuristics
  • Relative History Heuristics
• Selectivity
  • Draw Detection
    • 50 Moves Rule
    • Repetition Draw
  • Pruning
    • Null Move Pruning
    • Late Move Pruning, as a Move Count Pruning
    • Futility Pruning
    • Delta Pruning
    • Equal and Bad Captures Pruning
  • Extensions
    • Check Extensions
    • Singular Extensions
  • Reductions
    • Razoring
    • Late Move Reduction

• Tapered Eval
• Lazy Eval
• Piece-Square Tables
• Material
• King Tropism
• Pawn Structure
  • Pawn Islands
  • Backward Pawns
  • Double Pawns
  • Passers, Clear Passers
  • Isolanis, Half-Isolanis
  • Overly Advanced Pawns
  • Simpified Pawn Shield
• Knights Evaluation
  • Outpos Check
  • Safe Mobility
• Bishop Position
  • Bishop Pair
• Rook Position
  • Tarrash Rule
  • Open File Consideration
• Queen Position
  • Early development penalty
• King Zone Control
• Castling Possibility
• Mobility and Connectivity

The name refers to Napoleon's great victory over the united Austrian and Russian armies at the village of Austerlitz in 1805. It's also connected with "War and Peace" by great Russian novelist Leo Tolstoy, widely describing Napoleon's campaigns in Europe.

• BBC Chess Engine Tutorials by Maksim Korzh whose tutorials were an introduction to chess programming world and which helped me projecting my own engine from scratch.
• Mediocre Chess Engine Tutorials by Jonatan Pettersson for explaining hard programming concepts really clearly.
• ChessProgramming Wiki Team for the entire knowledge concentrated in one place.

Austerlitz is licensed under the MIT License.