Bluffing With Two Pair

I think Villain’s turn range consists of bluffs, flushes, AQ, sets, and perhaps the occasional 43 or AJ no spade that is raise-folding. I think it’s unlikely that he’s raising a singleton spade, as without a pair he’s setting himself up to get blown off of the draw and with a pair he wouldn’t accomplish much by raising.

On a spade river, two pair is actually one of the worst hands I’ll ever have. There’s a chance I’ll check it down and win against 43, but Villain will probably bet his bluffs, and I can’t call. Shoving enables me to win the pot against his bluffs and also get him off of the sets, the AQ, and low flushes. I think I rep a big spade very credibly:

PokerStars No-Limit Hold’em, $4 BB (9 handed) Hand History converter Courtesy of PokerZion.com

Button ($451.55)
Hero ($400)
BB ($400)
UTG ($489.80)
UTG+1 ($716)
MP1 ($424.80)
MP2 ($400)
MP3 ($503.55)
CO ($340.30)

Preflop: Hero is SB with Ac, 4d.
7 folds, Hero raises to $16, BB calls $12.

Flop: ($32) 4s, As, 3s (2 players)
Hero bets $24, BB calls $24.

Turn: ($80) Qh (2 players)
Hero bets $58, BB raises to $138, Hero calls $80.

River: ($356) Ks (2 players)
Hero bets $222 (All-In), BB folds.

Final Pot: $578

Results in white below:
Hero has Ac 4d (two pair, aces and fours).
Outcome: Hero wins $578.