One flop, three possible turns, and no hand to play. Before any decision on the turn there is a reading — the book gives you six groups to make it with, and this puzzle only asks you to make it.
Hand info
Single raised pot, blinds 0.5 / 1, no ante. The flop checked through. Your cards stay face down all the way through — nothing here asks what you hold.
TURN · 37.5BB EFFECTIVE
TURN · FIRST TO ACT
6-max table. Hero is BB with 37.5 big blinds effective. TURN: 9h, 8h, 4d, 9s. TURN · FIRST TO ACT.
Hand history
Pre-flop
Flop
Turn
UTG opened, you called from the big blind, and the flop 9♥ 8♥ 4♦ checked through. The turn is the 9♠. Do not decide anything yet — just say what this card did to the board.