HTTP/1.1 200 OK Date: Sun, 18 Jan 2026 09:59:04 GMT Server: Apache/2.4.66 (Debian) Last-Modified: Fri, 06 Nov 2020 22:10:10 GMT ETag: "1887-5b37779d47480-gzip" Accept-Ranges: bytes Vary: Accept-Encoding Content-Encoding: gzip Content-Length: 2075 Content-Type: text/html Dots and triangles. Can you win even this simple game?

In memory of Elwyn R. Berlekamp.