Source: 1960s, "The Use and Misuse of Game Theory," 1962, p. 110
“ABOYNE (vb.) To beat an expert at a game of skill by playing so appallingly bad that none of his clever tactics or strategies are of any use to him.”
The Meaning of Liff (1983)
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Douglas Adams 317
English writer and humorist 1952–2001Related quotes

“I'll beat him so bad he'll need a shoehorn to put his hat on.”

Probably apocryphal. This quotation does not appear in any print translation of Sun Tzu. The first citation in Google Books is from 2002; no citation in Google Books occurs in a translation of Sun Tzu.
Misattributed

人皆知我所以勝之形,而莫知吾所以制勝之形。
Source: The Art of War, Chapter VI · Weaknesses and Strengths
Improvisation for the Theater 1963), page 4

Quoted in "The First and the Last," 1954.
The First and the Last (1954)

Cosmos: A Spacetime Odyssey (2014)
Variant: 'Halley shattered their monopoly, beating them at their own game. A game that no scientist had every played before: Prophecy.