Arimaa is a two-player strategy board game that was designed to be playable with a standard chess set and difficult for computers while still being easy to learn and fun to play for humans. Every year since 2004, the Arimaa community has held three tournaments: a World Championship (humans only), a Computer Championship (computers only), and the Arimaa Challenge (human vs. computer). In 2015, the challenge was won decisively by the computer (Sharp by David Wu), with top players agreeing it was no fluke but proof that computers are currently superior to humans. As it was a prerequisite for the prize to be awarded, most of ICGA Journal Issue 38/1 was dedicated to this topic.