When in doubt, treat a min-bet on later streets just like a check.
Nine times out of ten, when an ABC player bets small into you on the river, they have a weak hand. Treat that bet like a check. Here's a simple example:
Hero's preflop raise isolates the limper. Hero checks behind on flop because wet board smacks villains range (medium pairs and flushy- straighty-type cards); i.e., c-betting as a bluff is probably going to fail. Villain's weird min bet on Q-high doesn't make sense, so hero calls, planning to reevaluate on river. Villain min bets again on river Ace. Again, weird. Bug's Tip says to treat min bets on river like weak hands; i.e., pretend bet is actually a check. Villain would be checking here with a single pair type hand and busted draws, and will probably fold to a larger bet. Hero therefore believes he has best hand, bets slightly under half size pot for value. (But will fold to check-raise.) Villain tanks, then calls, turning over a weak ace and busted straight draw.
All-in for now...
Hand Information for java-script challenged browsers:
|Hand History converter courtesy of pokerhandreplays.com|
|Seat1:||seat 1||($50)||Small Blind|
|Seat3:||seat 3||($50)||Big Blind|
|Dealt to hero|
Flop (Pot: $6.25)
Turn (Pot: $6.25)
River (Pot: $7.25)
|hero||wins the pot: $14.75|