Gecko, a C++​ chess engine created by sgtqwq, a 14-year-old middle school student in China.

Currently,Gecko v0.37.1-dev is ~3145+-100 Elo .

• Simple Bitboard Representation
• Flip-Based side-to-move

• Principal Variation Search

• Iterative Deepening

• Quiescence Search

• Transposition Table (Zobrist Hashing)

• Mate Distance Pruning

• Null Move Pruning

• Reversed Futility Pruning

• Late Move Pruning

• Internal Iterative Reduction

• Singular Extensions

• Razoring

• Futility Pruning

• Late Move Reduction

• Check Extensions

• Move Ordering

  • TT Move

  • MVV-LVA

  • Killer Moves

  • Simple History Heuristic

• NN(no UE) (768->32)x2->1 training on Lc0 data

• Simple Time Management

• Many Open Source Chess Engines