Daily Puzzle — 2026-09-27
You have 13 outs on the turn (river only). What is the exact probability of hitting?
You have 13 outs on the turn (river only). What is the exact probability of hitting?
Answer & explanation
A. 28.26% — Rule of 2&4 approximates 26%; the exact hypergeometric value is 28.26% (error 2.26%, 46 unseen cards).
Source: poker-math.ts:ruleOf2And4