hero080

That would be a very reasonable explanation. Unfortunately he insisted that 7 trump match is OK for that bid. This makes me believe he is either a clueless player, or a cheater. But maybe I was the one who is clueless and 7 trump match is indeed OK to make this bid? What do you think?

This is a good point.

It could prevent south from bidding 2♣. And the supposedly 5/3 ♥ distribution could misled NS to misjudge and lost to unexpected over trump. But I agree, the benefits are not strong enough.

Shouldn't it be 2♦ or Pass?

[hv=pc=n&s=sq865hq32d63ckq62&w=sthakj874d974cjt9&n=sak432ht6dk2ca874&e=sj97h95daqjt85c53&d=s&v=0&b=11&a=p1h1s2h3sp4sppp]399|300[/hv] Specifically, the 2♥ bid by East.