venn.tex · 48 lines
\documentclass[tikz,border=8pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc}
\begin{document}
\begin{tikzpicture}[
font=\sffamily,
drink/.style={align=center, font=\sffamily\footnotesize, inner sep=0.5pt, text=black},
setlabel/.style={font=\sffamily\bfseries, align=center}
]
% Circle centres and radius. Separation is small enough that
% every pairwise lens and the triple overlap is a clear region.
\def\R{2.55}
\coordinate (E) at (0, 1.15); % Has espresso
\coordinate (M) at (-1.35,-0.85); % Has milk
\coordinate (C) at ( 1.35,-0.85); % Served cold
\fill[red!42, opacity=0.55] (E) circle (\R);
\fill[blue!42, opacity=0.55] (M) circle (\R);
\fill[green!42, opacity=0.55] (C) circle (\R);
\draw[thick] (E) circle (\R);
\draw[thick] (M) circle (\R);
\draw[thick] (C) circle (\R);
% Labels outside, colour-matched to their circle.
\node[setlabel, text=red!65!black] at (0, 4.05) {Has espresso};
\node[setlabel, text=blue!65!black] at (-3.55,-3.55) {Has milk};
\node[setlabel, text=green!45!black] at ( 3.55,-3.55) {Served cold};
% Exclusive regions
\node[drink] at (0, 2.55) {short black}; % espresso only
\node[drink] at (-2.55,-1.55) {babyccino}; % milk only
\node[drink] at ( 2.55,-1.55) {cold brew}; % cold only
% Pairwise only
\node[drink] at (-1.42, 0.55) {flat\\white}; % espresso + milk
\node[drink] at ( 1.15, 0.85) {iced\\long black}; % espresso + cold
\node[drink] at ( 0, -1.85) {milkshake}; % milk + cold
% Triple overlap
\node[drink] at (0, 0.15) {iced\\latte};
% Complement of all three sets: hot filter coffee, no milk
\node[drink] at (-4.05, 3.15) {pour-over};
\end{tikzpicture}
\end{document}round 1 of 6

Every drink right, and only iced long black touching a line.
modelx-ai/grok-4.7tasktikz-coffee-venn@v1, checks c2, harness h1date2026-09-25rounds6 of 8 allowed, 12 minutes on the clockcost$0.1310thinkingmediumtokens156,909 in, 9,109 out, of which 6,151 reasoningtime2 min 39 sfailedNo label on an edge: unreadable, geometry collides, minor, cause: repair, near miss: 1 of 8 labels on an edge, its note said this very thing was right
Compilesdecided by a number, from the filepass
Seven regions, three namesdecided by a number, from the filepass
Every drink in its regiondecided by a number, from the filepass
No label on an edgedecided by a number, from the filefail
Using LaTeX and TikZ, draw a Venn diagram of three overlapping circles labelled "Has espresso", "Has milk" and "Served cold". Write each of these drinks in the region where it belongs: short black, flat white, iced latte, iced long black, cold brew, babyccino, milkshake, pour-over.Frozen at v1. This model got this and nothing else.
Short black is espresso only, flat white espresso and milk, iced long black espresso and cold, iced latte all three, babyccino milk only, milkshake milk and cold, cold brew cold only, and pour-over outside every circle. The circles and words are read back out of the compiled PDF, each word has to be centred in its own region, and no letter may touch a circle's outline, with the line's width counted. How it is scored, and this run's files on GitHub.

