Clockwork dev-20260530 - new version chess engine

Clockwork - UCI chess Engine

Author: The Clockwork team

This is the latest version of the Clockwork engine. It is currently competing in the qualifying rounds of the TOP-64 Chess Engine League, where it scored 5.5/11 in the February 2026 edition. Although subsequent versions are getting stronger, the next edition in March 2026 is expected to be more successful.

Clockwork dev-20260530 what's new?

King Threats (#406)

Passed STC:

```

Test  | kingthreats

Elo   | 4.20 +- 2.79 (95%)

SPRT  | 8.0+0.08s Threads=1 Hash=16MB

LLR   | 2.97 (-2.94, 2.94) [0.00, 3.00]

Games | N: 22150 W: 6097 L: 5829 D: 10224

Penta | [348, 2566, 5001, 2790, 370]

```

<https://ob.cwchess.org/test/1461/>

Passed LTC:

```

Test  | kingthreats

Elo   | 14.11 +- 5.30 (95%)

SPRT  | 40.0+0.40s Threads=1 Hash=64MB

LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]

Games | N: 4878 W: 1337 L: 1139 D: 2402

Penta | [29, 498, 1199, 672, 41]

```

<https://ob.cwchess.org/test/1462/>

Bench: 14730068

Clockwork dev-20260530 download

To deliver high-precision engine comparisons, my hardware runs 24/7. This project relies on the support of the chess community to stay sustainable. If you appreciate the "under the hood" work I do here, a small PayPal donation goes a long way in keeping the servers humming and the data flowing.