Rybka 5 -

: When used within the Aquarium interface, IDeA allows you to build a comprehensive "tree" of variations. It doesn't just show you the best move; it explores why other plausible moves fail and visualizes the long-term consequences, effectively producing a complete map of a complex position.

: For a standard quick check, a depth of 5 (2.5 full moves) is the default, but for high-quality features, you should aim for 18–20+ plies to find deep tactical or positional breakthroughs. Rybka 5

What is your ? (This affects how you should configure Deep Rybka's threads.) Rybka 3 Aquarium Overview : When used within the Aquarium interface, IDeA

: This is often considered Rybka's standout feature for "producing" a deep evaluation of a position. Instead of a standard search, the engine plays thousands of fast games against itself from your current position. It then presents a percentage-based score (e.g., White wins 55% of the time), which can reveal long-term strategic truths that standard "depth-first" searches might miss. What is your

: In Aquarium, set a "delta" (e.g., 25 centipawns) to limit multi-PV analysis to only those moves that are competitively close to the best move, preventing the engine from wasting resources on obviously poor alternatives.