[shark6]

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The only question is whether or not you should call a check/raise. I think you do need to call a raise because could be bluffing (rare) or have made 2-pair with AK, AJ, AT, Ax.

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This is obviously VERY player dependant. However, If we're talking about a typical passive 2/4 player, or an unknown 2/4 player who seems passive, we should not be calling a check/raise on this river card. This type of player is not making that play with anything less than a Queen.

In fact, part of the reason this is an easy value bet is that many times Villian will not checkraise when he does hold the Queen.

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It’s 13-1 to call a check/raise on the river. I’d want a better read than, “not particularly aggressive” before I fold there.