[starchild_3001]

Good job human(s)! It should be obvious to anyone who's following chess AIs: Progress seems endless; we're constantly discovering tactics and anti-tactics to defeat the latest model. That's why computer ELO is going up on a straight line. Progress in Go is admittedly a bit more obscure. Fewer people are working on it (leela go, katago etc). This article demonstrates that we can expect a similar trend.

[morelisp]

I don't believe there's been any analogue to this in chess AIs in many years, if ever. Chess AIs are certainly getting stronger, but when is the last time someone found an adversarial strategy against them that even mid-level players, or a high-level player giving a full queen as a handicap, can pull off? This feels much more like "exploit" than "tactics".

[mannykannot]

In a game, especially a complete-information one that pits mind against mind, tactics are a matter of exploiting the rules to their utmost (maybe somehow tricking an opponent into breaking the rules, or letting you do so, would be an exploit, but I don't think this can be categorized as such.)