Decision Management Community

Challenges

The challenges below describe decision-modeling problems that we post regularly. We invite visitors to this website to submit their solutions. You may use any business rules and decision management system, or none at all.

Submitted solutions are posted along with the authors' names and affiliations. Send your solutions to DecisionManagementCommunity@gmail.com, or add them directly via a pull request.

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Search the full archive or jump straight to a problem that still needs a solution.

3 open

Showing all 87 challenges.

2026

Zebra Puzzle

September 2026

RulesConstraint Satisfaction

3 solutions

A Brick Factory

July 2026

schedulingoptimization

3 solutions

Agentic Medical Services

April 2026

agentic-aibusiness-ruleshealthcare

6 solutions

'Trivial' Rule

Open

February 2026

agentic-aibusiness-rules

No published solutions yet

2025

Inside/Outside Production

December 2025

optimizationbusiness-rules

4 solutions

Advanced Website Design

November 2025

optimizationbusiness-rules

5 solutions

Decision with Two Objectives

October 2025

optimization

7 solutions

Grid Covering

August 2025

logic-puzzleoptimization

2 solutions

Rules with Regular Expressions

July 2025

business-rules

5 solutions

Risky Stocks

May 2025

business-rules

3 solutions

Case Assignments

April 2025

business-rulesoptimization

7 solutions

Mr Bates vs The Post Office

February 2025

optimizationlogic-puzzle

5 solutions

Christmas Word Search

January 2025

logic-puzzle

6 solutions

2024

Pricing Policy

December 2024

business-rules

5 solutions

Cheryl's Birthday

October 2024

logic-puzzle

2 solutions

Rental Boats

September 2024

optimization

11 solutions

Smart Investment

July 2024

optimization

10 solutions

Stable Marriage Problem

June 2024

optimizationconstraint-solving

6 solutions

Lookup Tables in Decision Models

April 2024

business-rules

3 solutions

Analyzing Employees

March 2024

business-rules

5 solutions

Family Riddle

January 2024

logic-puzzleconstraint-solving

8 solutions

2023

Coins

October 2023

constraint-solvinglogic-puzzle

8 solutions

Soldier Payment Rules

August 2023

business-rulesscheduling

6 solutions

Rules as Preferences (Miss Manners Advanced)

July 2023

constraint-solvingbusiness-rules

3 solutions

Miss Manners

June 2023

constraint-solvingbusiness-rules

5 solutions

Grid of Bulbs

May 2023

optimizationlogic-puzzle

3 solutions

Permit Eligibility

March 2023

business-rules

7 solutions

Holiday Gift Assignment

January 2023

optimization

10 solutions

2022

Crack Padlock Code

November 2022

puzzlelogic

4 solutions

Dots and Boxes

Open

October 2022

game-theorymachine-learning

No published solutions yet

Evaluate Team Performance

July 2022

business-rulessports

8 solutions

Medical Claim Processing

May 2022

healthcarebusiness-rules

3 solutions

2021

Oh Deer!

Open

December 2021

puzzlelogic

No published solutions yet

Card Approval Decision

October 2021

financebusiness-rules

3 solutions

Titanic Booking Service

August 2021

machine-learning

3 solutions

Where is Gold?

June 2021

puzzlelogic

13 solutions

COVID-19 Testing

May 2021

healthcarebusiness-rules

2 solutions

Rate Loan Risk Category

April 2021

financedmn

2 solutions

Benchmark "Medical Services"

February 2021

healthcaredecision-tablesperformance

8 solutions

2020

Virtual Chess Tournament

December 2020

puzzleconstraint-solving

7 solutions

Calculator with Two Buttons

November 2020

puzzleoptimization

5 solutions

Compressing Decision Tables

September 2020

decision-tablesoptimization

3 solutions

Spatial Business Rules

July 2020

business-rulesspatial

1 solution

Pay-As-You-Go Pricing

May 2020

business-rulespricing

6 solutions

Doctor Planning

April 2020

schedulinghealthcare

7 solutions

Paid Sick Leave Requirements

March 2020

business-rulescompliance

1 solution

NIM Rules

January 2020

game-theoryoptimization

3 solutions

2019

Numerical Haikus

November 2019

constraint-programmingpuzzles

2 solutions

Crack the Code

September 2019

constraint-programmingpuzzles

7 solutions

Dynamic Loan Evaluation

August 2019

business-rulesfinancial-services

2 solutions

Map Coloring with Violations

June 2019

constraint-programmingoptimization

6 solutions

Map Coloring

May 2019

constraint-programmingoptimization

7 solutions

Recreational Fee

April 2019

business-rulesdmn

7 solutions

Offering Donated Organs for Transplant

March 2019

healthcarebusiness-rules

9 solutions

Identify Unfriendly Robots

January 2019

machine-learningbusiness-rules

3 solutions

2018

Vacation Days Advanced

November 2018

business-rulesoptimization

4 solutions

Balanced Assignment

September 2018

optimizationconstraint-programming

5 solutions

Zoo, Buses, and Kids

July 2018

optimizationscheduling

4 solutions

Credit Card Application

June 2018

dmnfinancial-services

4 solutions

Up-Selling Rules

April 2018

business-rulesretail

3 solutions

Tax Decision Table

February 2018

business-rulesdmn

6 solutions

Order Promotions

January 2018

business-rulesretail

4 solutions

2017

Reindeer Ordering

December 2017

constraint-programmingoptimization

10 solutions

Soldier Payment Rules

November 2017

business-rulestemporal-reasoning

2 solutions

Classify Department Employees

September 2017

business-rulesdmn

4 solutions

Loan Origination (DMN Chapter 11 Example)

June 2017

dmnbusiness-rulesfinancial-services

7 solutions

Online Dating Services

March 2017

business-rulesmatching

5 solutions

Determine Booking Fraud

February 2017

fraud-detectionbusiness-rules

2 solutions

2016

Loan Approval

December 2016

business-rulesfinancial-services

1 solution

Rebooking Passengers from Cancelled Flights

October 2016

business-rulesoptimization

8 solutions

Greeting a Customer with Unknown Data

August 2016

business-rulesdmn

1 solution

Family Riddle

June 2016

logic-puzzleconstraint-solving

2 solutions

DMN Interchange Challenge

April 2016

dmnstandards

2 solutions

Port Clearance Rules

March 2016

business-rulescompliance

6 solutions

Decision Table for Vacation Days Calculation

January 2016

decision-tablesbusiness-rules

11 solutions

2015

Math Problem for Kindergarten

December 2015

logic-puzzle

4 solutions

Monkey Business

November 2015

logic-puzzleconstraint-solving

6 solutions

Collections of Cars

September 2015

business-rules

5 solutions

Find Duplicate Product Lines

August 2015

business-rulesdata-quality

3 solutions

Cut a Birthday Cake

July 2015

logic-puzzle

2 solutions

Make a Good Burger

June 2015

optimizationconstraint-solving

5 solutions

Patient Diagnosis Decision

April 2015

predictive-analyticshealthcare

1 solution

Change-Making Decision

February 2015

optimizationconstraint-solving

5 solutions

2014

Vehicle Insurance: The UServ Product Derby

December 2014

business-rulesinsurance

9 solutions

Who Killed Agatha?

November 2014

logic-puzzleconstraint-solving

6 solutions

Borrowing PASS/FAIL Decision with Mitigation Criteria

October 2014

business-rulesfinancial-services

7 solutions

Determine the Risk of Meeting a Werewolf

September 2014

business-rulesrisk-scoring

4 solutions