Academics
Sweep League
Real Minesweeper played like a sport — every board is no-guess, and you are measured like the pros (3BV, clicks, efficiency, 3BV/s, shown only after you finish). The Probability Lens shows the EXACT chance each hidden square is a mine. Race a friend on the same board with a code, and check a run with a replay token that re-plays through the engine. No accounts, no leaderboard, bests on this device. Ages 9-14.
#3B5B8C Distributed-narrative cast
Meet the cast
Sweep League's crew each embody one idea from the sport — the crew IS the method. Bevvy knows the fewest clicks a board could take (3BV), Clicksy counts every wasted click (efficiency), Oddsley weighs every arrangement the numbers allow (the Probability Lens), Chordy opens a whole ring of squares in one move, Floody lets a zero open its whole region, Knowsley knows no board needs a guess, Rewinda checks a run by re-playing it, Samesby gives racers the same board, Sumsy lets the total mine count shape the odds, and Tickwell keeps your speed hidden until you finish. Mentor Surefoot, a mountain goat, only steps where she is sure.
Surefoot
(Mentor, a mountain goat) - only steps where she is SURE; asks which square the numbers prove
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Bevvy
A bee who knows the fewest clicks a board could take - its 3BV
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Clicksy
A cricket who counts every wasted click - efficiency is 3BV divided by clicks
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Oddsley
An owl who weighs every arrangement the numbers allow - the exact odds of a mine
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Chordy
A crab who opens a whole ring of squares at once when a number's mines are all flagged
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Floody
A duck who knows a zero opens its whole empty region in one go
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Knowsley
A red panda who knows every board can be solved by knowing, never by guessing
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Rewinda
A squirrel who checks a run by re-playing every move, never by trusting it
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Samesby
A penguin who knows a race code gives both racers exactly the same board
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Sumsy
A hamster who knows the total number of mines shapes the odds of every hidden square
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Tickwell
A hare who knows your speed is shown only AFTER you finish, never while you play
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Browse all chapters → · What's distributed-narrative methodology? →
What's inside
Learning goal
Real Minesweeper played like a sport — every board is no-guess, and you are measured like the pros (3BV, clicks, efficiency, 3BV/s, shown only after you finish). The Probability Lens shows the EXACT chance each hidden square is a mine. Race a friend on the same board with a code, and check a run with a replay token that re-plays through the engine. No accounts, no leaderboard, bests on this device. Ages 9-14.
Question kits
16 curriculum-aligned kits × 25 questions = 400 questions per app, mapped to recognized standards.
On-device AI mentor
FoundationModels-powered hints, feedback, and adaptive difficulty — all running locally.
Mentored by Surefoot — on-device AI, no data leaves the device.
How Sweep League handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ No ads, no in-app purchases — you pay once
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ Parental controls + session limits + content filters built in
Sweep League runs on ForgeKit — the open-source Swift Package Manager framework that powers every Spark & Anvil app. ForgeKit ensures consistent accessibility, COPPA compliance, and design language across the portfolio, so your kid's progress and preferences feel coherent across every app they touch.
Coming to the App Store
Sweep League is in active development. Email us to hear when it ships — no marketing, no spam, just a one-shot launch announcement.
Email me at launch