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That'd be astonishing if true.
I bet someone did! These results were quite popular when people got access to personal computers. But it may be true no one bothered to publish about it. I'm also somewhat surprised you couldn't reproduce them.
Btw, tit for tat only comes out first when one integrates over all games. It loses against almost everybody, but always only very slightly.
Yup, given the lack of precision in the paper this isn't surprising.
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