Definition of "moob"
moob1
moob2
verb
third-person singular simple present moobs, present participle moobing, simple past and past participle moobed
(intransitive, computer chess, slang) To rapidly adjust the evaluation of a position towards zero, indicating a likely draw.
Quotations
Stockfish was slightly moobing until Leela played Qf5. An innocuous looking move that immediately sent alarm bells ringing and Stockfishes[sic] evaluation just kept rising.
2020 September 20, u/FMExperiment, “Stockfish beats Leela to inflict her first defeat in TCEC season 19 and remains the last undefeated engine!”, in Reddit, r/chess, archived from the original on 2022-10-22
The time taken for an engine to boom / moob can be quite a while because that time taken is completely dependent on the hardware you're running the program on.
2020 November 27, Allure, “Big changes in engine's evaluation after considerable time”, in Stack Exchange, archived from the original on 22 May 2024
noun
plural moobs
(computer chess, slang) An instance of moobing.
Quotations
The latest Stockfish on my laptop finds mate in 22 in less than a minute. Do you have any examples where a boom (or moob) occurs after 2-3 minutes of evaluation?
2020 November 27, the_fox, “Big changes in engine's evaluation after considerable time”, in Stack Exchange, archived from the original on 22 May 2024
One notable exception to the missing lines being interesting: Sometimes on a moob the sudden insight is 'I'm going to hit the 50 move rule before realizing my advantage'.
2021 January 23, Bram Cohen, “You're doing computer chess game commentary wrong”, in Medium, archived from the original on 2022-12-06