Trinket

Named after a hilarious spongebob meme, Trinket, a UCI Negamax engine, is here to clap and be clapped. I was dragged into this rabbit hole by 101Donutman, and I do not regret it one bit. I aspire to get Trinket to 3000 elo one day, but only time will tell for that ;)

Features

Search

• PV Search w/ Negamax
• Aspiration Windows
• Transposition Table
• Quiescence Search
• Extensions
  • Check Extension
• Reductions
  • LMR (Late Move Reduction)
• Pruning
  • Basic Alpha-Beta
  • NMP (Null Move Pruning)
  • RFP (Reverse Futility Pruning)
  • Negative loud moves in QSearch found with SEE
  • LMP (Late Move Pruning)

Move Ordering

• Hash Move
• Loud Moves
  • SEE
• Quiet Moves
  • History Heuristic
  • Killer Moves
  • Some other smaller checks like Castling bonus...etc

Static Evaluation

• Trained with Texel Tuning with the data set lichess-big3-resolved
• Piece Weights
• Piece Square Tables
• Tempo
• Piece Mobility
• Bishop Pair Bonus
• Passed Pawn Bonus
• Pawn Island Penalty
• Pawn Isolation Penalty
• Rook on Open File Bonus
• Rook on Semi-Open File Bonus

Time Management

• Calculates the time spent on searching based on the given wtime/btime and winc/binc (Time and Increment)
• If the time limit is exceeded during a search, it will abort and return the last best move from the prior depth

Shoutouts

• MinusKelvin for being MinusEleven, I mean Seven Eleven? What
• Analog Hors. Pony.
• 101DonutMan
• Pali
• Andrew (GM Andy?)
• KingKP
• Malarksist
• Shak kar shack car s shak shrek ?? h