Scout patrol leader rotation

An eight-person patrol rota combining exact pair pressure, patrol visits, and three-session spacing.

Open in GroupMixer Results

8 people4 groups7 sessions60s limit8 CPUs

Scenario ID: internal.stack-scout-patrol-rota-8p-4g-7s.v1
Problem hash: sha256:1e39f009b7ecd40bc44cbe7a609621b1a24e9f5b1ed01811b3d8fad924b04a2d

Comparator results

publication r20

Barasu-kun

Unsupported

valid —best —median —

Configuration

barasu-kun-0586a3f-sequential-v1

evidence r1 · unsupported

The live product cannot express group-visit targets or sliding spacing windows.

GolfSoftware Play All

Unsupported

valid —best —median —

Configuration

golfsoftware-play-all-live-55-second-v1

evidence r1 · unsupported

The live product cannot express group-visit targets or sliding spacing windows.

Good-Enough Golfers

Unsupported

valid —best —median —

Configuration

unsupported-group-visit-windows

evidence r1 · unsupported

The product cannot express canonical group-visit counts and sliding spacing windows.

GroupMixer

Feasible

valid 5/5best 2,000median 2,000

Configuration

browser-auto-8-defaults-v1

evidence r19 · eligible

Measured 11 October 2026 on an Intel Core Ultra 9 386H; eight pinned CPUs, 8 GiB physical memory, swap disabled. Current production browser Auto, eight requested lanes, automatic Extreme handoff and default CP-SAT admission.

Gurobi

Unavailable

valid —best —median —

Configuration

unavailable-license

evidence r1 · unavailable

No runnable licensed environment and reproducible formulation are available for v1.

Halftime Team Pairings

Unsupported

valid —best —median —

Configuration

halftime-team-pairings-live-sequential-last-six-v1

evidence r1 · unsupported

The visible workflow cannot express canonical group-visit targets or sliding spacing windows.

Hexaly

Unavailable

valid —best —median —

Configuration

unavailable-license

evidence r1 · unavailable

No runnable licensed environment and reproducible formulation are available for v1.

IIENSTITU Random Group Generator

Unsupported

valid —best —median —

Configuration

iienstitu-live-avoid-history-seeded-v1

evidence r1 · unsupported

The visible workflow cannot express canonical group-visit targets or sliding spacing windows.

Optimal Group Generator

Unsupported

valid —best —median —

Configuration

optimal-group-generator-live-fixed-ga-sequential-v1

evidence r1 · unsupported

The live product cannot express group-visit targets or sliding spacing windows.

Google OR-Tools CP-SAT

Feasible

valid 5/5best 2,000median 2,000

Configuration

ortools-cpsat-case-formulations-v1:station-rotation-v2

evidence r19 · eligible

Measured 11 October 2026 on an Intel Core Ultra 9 386H; eight pinned CPUs, 8 GiB physical memory, swap disabled. Frozen case-specific OR-Tools 9.15.6755 formulation and parameters.

Social Golfer Online

Unsupported

valid —best —median —

Configuration

unsupported-group-visit-windows

evidence r1 · unsupported

The product cannot express canonical group-visit counts and sliding spacing windows.

Teach Arcade Group Maker

Unsupported

valid —best —median —

Configuration

teach-arcade-live-roundrobin-sequential-history-v1

evidence r1 · unsupported

The visible workflow cannot express canonical group-visit targets or sliding spacing windows.

TourneyCard Golf Randomizer

Unsupported

valid —best —median —

Configuration

unsupported-group-visit-windows

evidence r1 · unsupported

The product cannot express canonical group-visit counts and sliding spacing windows.

Comparator status, attempts, score, and configuration
Tool	Status	Valid	Best	Median	Evidence
Barasu-kun	Unsupported	—	—	—	Configuration `barasu-kun-0586a3f-sequential-v1` evidence r1 · unsupported The live product cannot express group-visit targets or sliding spacing windows.
GolfSoftware Play All	Unsupported	—	—	—	Configuration `golfsoftware-play-all-live-55-second-v1` evidence r1 · unsupported The live product cannot express group-visit targets or sliding spacing windows.
Good-Enough Golfers	Unsupported	—	—	—	Configuration `unsupported-group-visit-windows` evidence r1 · unsupported The product cannot express canonical group-visit counts and sliding spacing windows.
GroupMixer	Feasible	5/5	2,000	2,000	Configuration `browser-auto-8-defaults-v1` evidence r19 · eligible Measured 11 October 2026 on an Intel Core Ultra 9 386H; eight pinned CPUs, 8 GiB physical memory, swap disabled. Current production browser Auto, eight requested lanes, automatic Extreme handoff and default CP-SAT admission.
Gurobi	Unavailable	—	—	—	Configuration `unavailable-license` evidence r1 · unavailable No runnable licensed environment and reproducible formulation are available for v1.
Halftime Team Pairings	Unsupported	—	—	—	Configuration `halftime-team-pairings-live-sequential-last-six-v1` evidence r1 · unsupported The visible workflow cannot express canonical group-visit targets or sliding spacing windows.
Hexaly	Unavailable	—	—	—	Configuration `unavailable-license` evidence r1 · unavailable No runnable licensed environment and reproducible formulation are available for v1.
IIENSTITU Random Group Generator	Unsupported	—	—	—	Configuration `iienstitu-live-avoid-history-seeded-v1` evidence r1 · unsupported The visible workflow cannot express canonical group-visit targets or sliding spacing windows.
Optimal Group Generator	Unsupported	—	—	—	Configuration `optimal-group-generator-live-fixed-ga-sequential-v1` evidence r1 · unsupported The live product cannot express group-visit targets or sliding spacing windows.
Google OR-Tools CP-SAT	Feasible	5/5	2,000	2,000	Configuration `ortools-cpsat-case-formulations-v1:station-rotation-v2` evidence r19 · eligible Measured 11 October 2026 on an Intel Core Ultra 9 386H; eight pinned CPUs, 8 GiB physical memory, swap disabled. Frozen case-specific OR-Tools 9.15.6755 formulation and parameters.
Social Golfer Online	Unsupported	—	—	—	Configuration `unsupported-group-visit-windows` evidence r1 · unsupported The product cannot express canonical group-visit counts and sliding spacing windows.
Teach Arcade Group Maker	Unsupported	—	—	—	Configuration `teach-arcade-live-roundrobin-sequential-history-v1` evidence r1 · unsupported The visible workflow cannot express canonical group-visit targets or sliding spacing windows.
TourneyCard Golf Randomizer	Unsupported	—	—	—	Configuration `unsupported-group-visit-windows` evidence r1 · unsupported The product cannot express canonical group-visit counts and sliding spacing windows.

Measured attempts

GroupMixer · seed-101feasible timeout

local browsercost 2,00060.69sRSS —

GroupMixer · seed-202feasible timeout

local browsercost 2,00060.662sRSS —

GroupMixer · seed-303feasible timeout

local browsercost 2,00060.69sRSS —

GroupMixer · seed-404feasible timeout

local browsercost 2,00060.686sRSS —

GroupMixer · seed-505feasible timeout

local browsercost 2,00060.598sRSS —

Google OR-Tools CP-SAT · seed-101feasible timeout

native processcost 2,00058.472sRSS —

Google OR-Tools CP-SAT · seed-202feasible timeout

native processcost 2,00058.46sRSS —

Google OR-Tools CP-SAT · seed-303feasible timeout

native processcost 2,00058.511sRSS —

Google OR-Tools CP-SAT · seed-404feasible timeout

native processcost 2,00058.485sRSS —

Google OR-Tools CP-SAT · seed-505feasible timeout

native processcost 2,00058.477sRSS —

Per-attempt benchmark status, execution class, canonical cost, runtime, and memory
Tool / attempt	Execution	Status	Cost	Wall	Peak RSS
GroupMixer · seed-101	Browser	feasible timeout	2,000	60.69s	—
GroupMixer · seed-202	Browser	feasible timeout	2,000	60.662s	—
GroupMixer · seed-303	Browser	feasible timeout	2,000	60.69s	—
GroupMixer · seed-404	Browser	feasible timeout	2,000	60.686s	—
GroupMixer · seed-505	Browser	feasible timeout	2,000	60.598s	—
Google OR-Tools CP-SAT · seed-101	Native	feasible timeout	2,000	58.472s	—
Google OR-Tools CP-SAT · seed-202	Native	feasible timeout	2,000	58.46s	—
Google OR-Tools CP-SAT · seed-303	Native	feasible timeout	2,000	58.511s	—
Google OR-Tools CP-SAT · seed-404	Native	feasible timeout	2,000	58.485s	—
Google OR-Tools CP-SAT · seed-505	Native	feasible timeout	2,000	58.477s	—

Pair-frequency distribution

GroupMixer · seed-101

Number of participant pairs by meeting frequency
Meetings	Participant pairs
1	28

Unique contacts: 28
Repeat excess: 0
Repeated pairs: 0
Worst pair count: 1
Min contacts / person: 7
Mean contacts / person: 7

Evidence and reproduction

gm-scenarios materialize internal.stack-scout-patrol-rota-8p-4g-7s.v1 --pretty --output case.json

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