\begin{table}[htbp]
\centering
\footnotesize
\begin{tabular}{l|ccccc|ccccc}
\toprule
& \multicolumn{5}{c|}{\textbf{Golden Mean (2 states)}} & \multicolumn{5}{c}{\textbf{Even Process (2 states)}} \\
\textbf{N} & 100 & 1K & 10K & 100K & 1M & 100 & 1K & 10K & 100K & 1M \\
\midrule
CSSR & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & $\times$4 & $\times$4 & $\times$4 \\
SPECTRAL & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & $\times$5 & \checkmark & \checkmark & \checkmark & \checkmark \\
NSD & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark \\
CSM & $\times$3 & \checkmark & \checkmark & \checkmark & \checkmark & $\times$3 & $\times$3 & $\times$3 & $\times$3 & $\times$3 \\
BSI & \checkmark & $\times$3 & $\times$3 & $\times$3 & $\times$3 & $\times$3 & $\times$4 & $\times$4 & $\times$4 & $\times$4 \\
\midrule
& \multicolumn{5}{c|}{\textbf{Biased Coin (1 state)}} & \multicolumn{5}{c}{\textbf{Periodic (3 states)}} \\
\textbf{N} & 100 & 1K & 10K & 100K & 1M & 100 & 1K & 10K & 100K & 1M \\
\midrule
CSSR & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark \\
SPECTRAL & $\times$4 & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark \\
NSD & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & $\times$2 & $\times$2 & $\times$2 & $\times$2 & $\times$2 \\
CSM & $\times$2 & $\times$2 & \checkmark & \checkmark & \checkmark & $\times$2 & $\times$2 & $\times$2 & $\times$2 & $\times$2 \\
BSI & $\times$2 & \checkmark & \checkmark & \checkmark & \checkmark & \checkmark & $\times$4 & $\times$4 & $\times$4 & $\times$4 \\
\bottomrule
\end{tabular}
\caption{Detailed correctness by sample size. \checkmark = correct state count; $\times n$ = inferred $n$ states (wrong).}
\label{tab:correctness-detail}
\end{table}
