We should extract value from SB's capped range with consistent sizing rather than over-shoving on safe turns.
Flop Analysis
A small c-bet is ideal here. We have a massive range advantage on this 9-high board, and a small size forces SB to continue with hands like 77-88 or A-high that we dominate.
**Ranges:** SB's 4-bet call range is condensed, featuring hands like JJ-TT, AQs, and some A5s. We hold the nut advantage with AA/KK, while SB is capped at JJ or slow-played sets.
**Sizing:** Using 12.9BB (approx. 30% pot) is the standard approach. It allows us to bet a high frequency of our range while keeping SB's weaker pairs and high-card hands in the pot.
**Position:** Being IP allows us to control the pot geometry. Since SB checked, we can comfortably start the value-building process against their bluff-catchers.
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> **Takeaway:** On dry, low-to-mid boards in 4-bet pots, use small c-bets to keep the opponent's range wide and maximize value from dominated pairs.
Turn Analysis
While we have a clear value bet, shoving for nearly 1x pot is slightly over-polarized. A half-pot bet (33.6BB) is preferred to keep SB's bluff-catchers like JJ-TT or 9x in the pot.
**Ranges:** The 3c is relatively blank, though it completes wheel straights (A4s) which SB rarely has. SB's range is mostly pocket pairs (77-JJ) and some nut flush draws like AsQs.
**Sizing:** Shoving 68BB into 67BB (100% pot) risks folding out the very hands we want to call. A 50% pot sizing sets up a comfortable river shove while maximizing the chance SB makes a mistake by calling with a worse pair.
**Board:** The board is semi-wet with a flush draw present. We don't block the spade draw (KcKd), which is actually good as it leaves more 'calling' hands in SB's range.
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> **Takeaway:** Avoid over-shoving turns when the SPR is around 1; use a sizing that keeps the opponent's marginal bluff-catchers committed.
Note: The turn shove is too large; a half-pot sizing (approx. 33BB) better targets SB's range of JJ-TT and 9x while still allowing for a river jam.