Anonymized 57-person sailing trip

An owner-authorized, anonymized five-session sailing workload preserving the complete objective and mixed-constraint structure of the recovered GroupMixer setup.

Open in GroupMixer Results

57 people5 groups5 sessions60s limit8 CPUs

Scenario ID: internal.sailing-trip-57p-5g-5s.v1
Problem hash: sha256:3d6ee5e626b3315de770cacdafa1f2d1c669d9ad196b461592afb1d4aee6a971

Comparator results

publication r20

Barasu-kun

Unsupported

valid —best —median —

Configuration

barasu-kun-0586a3f-sequential-v1

evidence r1 · unsupported

The live product cannot express changing capacities, placements, pair rules, attributes, or encounter targets.

GolfSoftware Play All

Unsupported

valid —best —median —

Configuration

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

evidence r1 · unsupported

The live product cannot express changing capacities, placements, pair rules, attributes, or encounter targets.

Good-Enough Golfers

Unsupported

valid —best —median —

Configuration

unsupported-mixed-semantics

evidence r1 · unsupported

The product cannot express the full canonical combination of changing capacities, attributes, placements, encounter targets, and pair rules.

GroupMixer

Feasible

valid 5/5best 1,288median 1,304

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 changing capacities, placements, pair rules, attributes, and encounter targets.

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 changing capacities, placements, pair rules, attributes, and encounter targets.

Optimal Group Generator

Unsupported

valid —best —median —

Configuration

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

evidence r1 · unsupported

The case exceeds the 50-member limit and the product cannot express changing capacities, placements, pair rules, attributes, or encounter targets.

Google OR-Tools CP-SAT

Feasible

valid 5/5best 1,845median 1,906

Configuration

ortools-cpsat-case-formulations-v1:generic-staged-v4

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-mixed-semantics

evidence r1 · unsupported

The product cannot express the full canonical combination of changing capacities, attributes, placements, encounter targets, and pair rules.

Teach Arcade Group Maker

Unsupported

valid —best —median —

Configuration

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

evidence r1 · unsupported

The visible workflow cannot express changing capacities, placements, pair rules, attributes, and encounter targets.

TourneyCard Golf Randomizer

Unsupported

valid —best —median —

Configuration

unsupported-mixed-semantics

evidence r1 · unsupported

The product cannot express the full canonical combination of changing capacities, attributes, placements, encounter targets, and pair rules.

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 changing capacities, placements, pair rules, attributes, or encounter targets.
GolfSoftware Play All	Unsupported	—	—	—	Configuration `golfsoftware-play-all-live-55-second-v1` evidence r1 · unsupported The live product cannot express changing capacities, placements, pair rules, attributes, or encounter targets.
Good-Enough Golfers	Unsupported	—	—	—	Configuration `unsupported-mixed-semantics` evidence r1 · unsupported The product cannot express the full canonical combination of changing capacities, attributes, placements, encounter targets, and pair rules.
GroupMixer	Feasible	5/5	1,288	1,304	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 changing capacities, placements, pair rules, attributes, and encounter targets.
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 changing capacities, placements, pair rules, attributes, and encounter targets.
Optimal Group Generator	Unsupported	—	—	—	Configuration `optimal-group-generator-live-fixed-ga-sequential-v1` evidence r1 · unsupported The case exceeds the 50-member limit and the product cannot express changing capacities, placements, pair rules, attributes, or encounter targets.
Google OR-Tools CP-SAT	Feasible	5/5	1,845	1,906	Configuration `ortools-cpsat-case-formulations-v1:generic-staged-v4` 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-mixed-semantics` evidence r1 · unsupported The product cannot express the full canonical combination of changing capacities, attributes, placements, encounter targets, and pair rules.
Teach Arcade Group Maker	Unsupported	—	—	—	Configuration `teach-arcade-live-roundrobin-sequential-history-v1` evidence r1 · unsupported The visible workflow cannot express changing capacities, placements, pair rules, attributes, and encounter targets.
TourneyCard Golf Randomizer	Unsupported	—	—	—	Configuration `unsupported-mixed-semantics` evidence r1 · unsupported The product cannot express the full canonical combination of changing capacities, attributes, placements, encounter targets, and pair rules.

Measured attempts

GroupMixer · seed-101feasible timeout

local browsercost 1,30060.045sRSS —

GroupMixer · seed-202feasible timeout

local browsercost 1,31060.034sRSS —

GroupMixer · seed-303feasible timeout

local browsercost 1,30859.91sRSS —

GroupMixer · seed-404feasible timeout

local browsercost 1,30460.271sRSS —

GroupMixer · seed-505feasible timeout

local browsercost 1,28859.662sRSS —

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

native processcost 1,92258.686sRSS —

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

native processcost 1,90658.7sRSS —

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

native processcost 1,92958.732sRSS —

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

native processcost 1,84558.694sRSS —

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

native processcost 1,88858.707sRSS —

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	1,300	60.045s	—
GroupMixer · seed-202	Browser	feasible timeout	1,310	60.034s	—
GroupMixer · seed-303	Browser	feasible timeout	1,308	59.91s	—
GroupMixer · seed-404	Browser	feasible timeout	1,304	60.271s	—
GroupMixer · seed-505	Browser	feasible timeout	1,288	59.662s	—
Google OR-Tools CP-SAT · seed-101	Native	feasible timeout	1,922	58.686s	—
Google OR-Tools CP-SAT · seed-202	Native	feasible timeout	1,906	58.7s	—
Google OR-Tools CP-SAT · seed-303	Native	feasible timeout	1,929	58.732s	—
Google OR-Tools CP-SAT · seed-404	Native	feasible timeout	1,845	58.694s	—
Google OR-Tools CP-SAT · seed-505	Native	feasible timeout	1,888	58.707s	—

Pair-frequency distribution

GroupMixer · seed-505

Number of participant pairs by meeting frequency
Meetings	Participant pairs
1	799
2	269
3	40
4	1
5	5

Unique contacts: 1,114
Repeat excess: 372
Repeated pairs: 315
Worst pair count: 5
Min contacts / person: 35
Mean contacts / person: 39.09

Evidence and reproduction

gm-scenarios materialize internal.sailing-trip-57p-5g-5s.v1 --pretty --output case.json

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