PREDATOR

PREDATOR — The Apex Hunter of Chess Engines
PREDATOR is not just a chess engine. It is a digital apex hunter built for domination.
Powered by advanced NNUE, aggressive tactical logic, and adaptive learning,
it strikes with brutal precision and the instinct of a true predator.
This engine doesn’t play — it hunts.
⚡ Explosive tactics driven by dynamic NNUE weights
🧠 Evolutionary intelligence that adapts in real time
📚 Full support for CTG / BIN / EXP, including the dedicated predatorbook.bin opening book
🎯 FenBook – instant position recognition
🔥 Aggression, creativity, and controlled unpredictability
🏹 Syzygy endgame mastery
PREDATOR is pure strength, instinct, and precision forged into code.
An engine for those who don’t want to play — but want to win.
🔗 Engine available on the forum:

SOLIDOR

Museum

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SOLIDOR — Not a Chess Engine. A Warrior.
SOLIDOR isn’t another Stockfish clone.
t’s a warrior — forged to stand out in a world of copies and derivatives.
Built on the proven foundations of Stockfish, SugaR, Hypnos, and Eman, yet redesigned from the inside out,
SOLIDOR delivers its own identity, its own strength, and its own fighting spirit.
This engine doesn’t just calculate — it battles.
⚔️ Aggressive, intelligent play powered by dynamic NNUE weighting and adaptive heuristics
🧠 A unique philosophy — bold, uncompromising, and engineered to stand apart
📚 Advanced opening systems: Book1, Book2, FenBook, and Experience Book
🎯 Learning and adaptation — SOLIDOR evolves with every game
🔄 Controlled variety — randomness, softmax scoring, MultiPV exploration
🚀 Full CPU power — AVX2, BMI2, LTO, PGO, and optimized multithreading
SOLIDOR is built for players who want more — strength, personality, and innovation in every move.
This is not “just another engine.”
It’s a project with vision — a machine designed to evolve, to fight, and to claim its own place among the greats.

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Rybka 5 – Short Project Description

Rybka returns as a revived project inspired by the legendary engine that once dominated computer chess. This version is built with modern improvements while preserving the spirit and identity of the original.

I chose to honor the original Rybka authors — despite the controversies and accusations they faced — by keeping their author data unchanged. Their work on Rybka 4.1 was significant, and this project keeps a part of their contribution alive.

The engine includes improved tablebase handling, enhanced opening book support, automatic folder detection, and overall stability and strength comparable to modern engines.

This is not an imitation of Stockfish. This is Rybka, rebuilt with respect, determination, and a desire to bring a classic name back into the fight.

Rybka 7 – Extended Project Description

Rybka 7 is engineered specifically for fast blitz play, optimized for the 1+5 time control where speed, precision, and instant tactical awareness decide the outcome. This release introduces a new series of patches that enhance stability, improve evaluation depth, and refine time‑management behavior under pressure.

Built as the next step in the legendary Rybka lineage, version 7 focuses on practical strength in real‑time situations. The engine reacts faster, calculates cleaner, and maintains consistent performance even in chaotic, time‑critical positions.

The newly added patches include improvements to:

evaluation accuracy in sharp tactical positions
move ordering and pruning efficiency
stability during rapid search fluctuations
responsiveness in low‑time scenarios

Rybka 7 brings the classic engine back into the blitz arena with renewed speed, modern refinements, and a fighting spirit tailored for short‑control battles.