While the board is coordinated, our overpair is too strong to fold to a single raise after checking the turn.
On this low, connected board, checking back is a high-frequency play to protect our range, though betting is also viable.
Note: Overbetting here is slightly too aggressive on a texture that favors the SB's flatting range (sets, 54s, 65s).
Checking back is a solid play on a card that completes several straights (2 and 7), keeping the pot manageable with our one-pair hand.
The Ten is a clean river card. We bet for value to get called by Tx, 88-99, and remaining 6x combos.
Folding here is a significant mistake. By checking the turn, we have under-represented our hand, and SB can easily be turning missed spade draws or hands like 88/99 into bluffs. **Ranges:** SB has all the straights (2x, 7x), but they also have many missed spade draws and weak pairs that might try to 'buy' the pot after we showed weakness on the turn. **Math:** We need roughly 37% equity to call. Against a range that includes even a few bluffs or over-valued top pairs (AT/KT), our KK is a clear call. **Blockers:** We don't block the spade flush draw, which is good because it means SB is more likely to have those missed draws as bluffs. --- > **Takeaway:** When you check back a dynamic turn, your hand becomes a high-frequency bluff-catcher on brick rivers; don't fold the top of your range.
Note: Folding an overpair here is too tight; we are getting a fair price to catch bluffs from missed draws.