WCCC 2017: The 23rd World Computer Chess Championship

The 22nd World Computer Chess Championship started on June 27, 2016. Six programs participated in a double round robin tournament, see Table 1 (CPW 2016a-u; Krabbenbos et al., 2016). The tournament took place at Leiden University and was organized by the ICGA, LIACS and LCDS. It was sponsored by Google, Naturalis Biodiversity Center, the municipality of Leiden, Leiden University, its Faculty of Science, the ICGA, iSSC, SurfSara, Digital Game Technology and NWO Exact Sciences. It was held in conjunction with the 19th Computer Olympiad and the 15th Advances in Computer Games conference. The openings’ ECO codes are noted and Figs. 1–10 give positions from Rounds 1–10 respectively. The classical tempo was 1h45’+15”/move for both sides.