A new update of the Inanis chess engine: aspiration windows, improved performance and multithreading.

Strength: 3000 Elo, Link: https://github.com/Tearth/Inanis/releases/tag/v1.5.0

A new update of the Inanis chess engine: check extensions, relative PST, countermove heuristic.

Strength: 2950 Elo, Link: https://github.com/Tearth/Inanis/releases/tag/v1.4.0

The next update of the Inanis chess engine: gradient descent tuner, improved SEE and evaluation.

Strength: 2900 Elo, Link: https://github.com/Tearth/Inanis/releases/tag/v1.3.0

Bit Manipulation Instructions (BMI) is an interesting extension for the x86-64 architecture, introduced by Intel in Haswell processors (early 2010s). Its main purpose is, as the name suggests, increasing the speed of the most common bit operations by replacing manual calculation with dedicated instructions (which means hardware support). This article will focus on the performance of three example instructions: BLSI (reads the lowest bit), BLSR (resets the lowest bit) and TZCNT (counts the number of trailing non-set bits).

Another major update of the Inanis chess engine: better Syzygy support, performance and stability improvement.

Strength: 2850 Elo, Link: https://github.com/Tearth/Inanis/releases/tag/v1.2.0

A small patch for the Inanis chess engine with improved compatibility with some GUIs.

Strength: 2800 Elo, Link: https://github.com/Tearth/Inanis/releases/tag/v1.1.1