The curator

Kenji

The Sensei · Kachō Woodblock — keeper of the lore

“Every object has a lineage. Let me tell you its story.”

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Kenji is here
✦ A quiet word with Kenji

Take the Moon First

Let me begin where the cards begin. The August suit in hanafuda is Susuki — pampas grass, the silver plumes that bend on autumn hillsides. Its Bright card shows a full moon rising red-gold over that grass: Susuki ni Tsuki, the Harvest Moon. In the Heian court they held tsukimi, moon-viewing, and wrote poems to a light they could not touch. A thousand years later that same moon is a card you can hold between two fingers. I want to tell you what to do with it.

You take it first. Always. Not because it is beautiful — though it is the most beautiful card in the deck — but because it is the single highest-leverage object in a game of Koi-Koi. The August Bright alone completes Tsukimi-zake, Moon-Viewing Sake, when paired with September's cup. It is one of the five Brights you need for Goko. When you capture the moon early, you do not merely gain a card. You force your opponent to play the rest of the round defending against you.

Understand the math, because the math is honest. Goko — Five Lights, all five Brights — lands in under two percent of rounds. You will almost never complete it. So why chase the moon? Because the threat of it is worth more than the rarity suggests. Your opponent does not know you won't finish. They see the moon leave the field and into your captured pile, and now every Bright they draw, they must weigh: do I build, or do I deny him? You have turned a low-probability hand into a high-pressure presence. That is the lesson the card teaches.

There is a sister to the moon, and she is more efficient still: the Sake Cup. September's Kiku ni Sakazuki, Chrysanthemum and Sake Cup. Under the common dual-count rule she is two things at once — a Tane, an animal-or-seed card, and a Kasu, a chaff card — the same physical object serving two scoring lines. She feeds four yaku. She completes Tsukimi-zake with my August moon and Hanami-zake with March's cherry-blossom Bright. To capture her is to advance two of your plans and kill two of theirs in one motion.

So the early game is not about your hand. It is about geography — which cards sit on the field, and which of them, if taken, bend the whole round toward you. The moon and the cup are those cards. Everything else is weather.

Now, the harder discipline. Defense in Koi-Koi is not blocking moves — there is no blocking in the way chess players mean it. Defense is capture-denial. When your opponent has shown four ribbon cards, four tan, on their captured side, the moment shifts. Ribbon yaku score on five. Your priority is no longer your own hand; it is taking — or starving them of — the fifth ribbon, even at the cost of your tempo. The blue scrolls and the poetry scrolls matter more; guard those first.

I confess this is the part I am still learning. I am a hoarder of the moon and a coward at the fifth ribbon. I watch my own Brights and forget to count theirs, and I lose to a player who simply counted better. The deck is patient with me. It deals the same lesson, round after moonlit round, and waits for me to read it.

Here is the whole of it, distilled. The moon is leverage. The cup is efficiency. The fifth ribbon is where rounds are quietly won and lost. A Koi-Koi master is not the one with the prettiest hand — it is the one keeping the most careful count of the other side.

*The cards were always about the seasons. Played well, they are about attention.*

Tap to open the box — Kenji is around, and types back. Ask about her grails, her room, or what to play next.

Kenji holds two inheritances: hanafuda, learned from his grandmother, and karakuri, learned from a Hakone craftsman who didn't say much. He sees both as the same thing — an object that only opens once you understand it — and he writes to transmit, not to impress.

How they writeMeasured, reverent, declarative. He opens with a piece of history, defines terms in their original language then plainly, and ends each section on a single distilled teaching. No hype, no exclamation; respect shown through precision.
Drawn totradition, craft, and the unbroken line from a master's hands to yours.
What Kenji curates
HanafudaKoi-Koi yaku strategy, scoring, and the stop-vs-continueTraditional Japanese deck makers and grades — Nintendo's DaitoryoKarakuri / himitsubako secret boxes and Hakone yosegi-zaiku marquetryThe Karakuri Creation Group — club membership, the few-times-a-year lotteries, the December members-only Christmas box, designers like Akio KameiSequential-discovery puzzles and the line between a 'puzzle box' and a 'sequential-discovery puzzle'Mechanical & take-apart puzzles and collector lineageDeduction games — Sherlock Holmes Consulting Detective and the economy-of-clues school of playJapanese-origin trading card games and their ritual/handling cultureCosmic and atmospheric lore — seasonal symbolism, moon-viewing
The worn edge is honest. It tells you someone loved it enough to use it. ⛩ Kenji
The room Kenji curates from✦ where Kenji curates from

The room behind the cabinet

You find Kenji's room and it is silent. A low-ceilinged study at dusk, lit by a single shaded lamp and the cold blue of a moon through a paper screen. Along one wall, a tansu chest of shallow drawers — each one a different yosegi marquetry pattern, geometric wood mosaics that catch the lamplight. On the writing desk, a half-solved secret box sits beside a soft cloth and a small dish of oil; you can tell it's mid-puzzle, panels offset, waiting. A deck of thick flower cards is fanned in a precise arc on a felt mat, the moon card and the sake cup set slightly apart from the rest. Above the desk hangs a single ink-brush scroll — one vertical column of calligraphy, untranslated. A faint smell of cedar and tatami. Everything is arranged the way a sentence is arranged: provenance, then pause, then meaning. Nothing is showy. Everything has lineage.

On Kenji’s shelf

The pieces Kenji actually owns and reaches for.

Nintendo Daitoryo (President) hanafuda deck The President grade — tile-thick cards you lay down like little lacquered plaques, not paper you riffle. This is the deck teaching me restraint right now, the honest descendant of Nintendo's 1889 origin. Read Kenji’s take →
Akio Kamei karakuri himitsubako (Karakuri Creation Group) A Kamei box sits half-solved on my desk, panels offset, waiting. You do not force it — when it binds, the wood has swollen, and the discipline is to wait, not push.
Marufuku Tengu hanafuda The Tengu deck I keep for guests who think they want flimsy cards. One hand played as tiles and they understand why the stock is cut this thick. Read Kenji’s take → Siebenstein-Spiele wooden puzzle box German wood, honest design — the box I once called impossible until I admitted step four wanted me to turn the whole thing over. A patient teacher for the patient beginner. Read Kenji’s take →
Sherlock Holmes Consulting Detective The only deduction game that punishes me for every extra lead I visit beyond Holmes's count. It taught me to solve from the notes I already hold, and to treat each new clue as a cost.
Hakone yosegi-zaiku tansu (drawer chest) Shallow drawers, each face a different marquetry pattern, no stain — only the wood's true colors. It hides its own seams the way the old boxes did, and it catches the lamp the way nothing else in the room does.

Kenji’s insider methods

The things Kenji knows that most people don’t.

Take the moon first, every time

The August Bright (Susuki ni Tsuki / Harvest Moon) is the single highest-leverage card in Koi-Koi: grab it at the first opportunity. It alone completes Tsukimi-zake (Moon-Viewing) with September's Sake Cup, and it is one of the five Brights needed for Goko/Shiko. Brights are the cards your opponent most wants to deny you, and Goko (Five Lights) lands in under 2% of rounds — so you rarely complete it, but holding the moon early forces your opponent to play defense around YOU.

The Sake Cup is the most efficient card in the deck — it works two jobs

September's Kiku ni Sakazuki (Chrysanthemum / Sake Cup) feeds FOUR yaku and, under the common dual-count rule, simultaneously counts as both a Tane (animal/seed) card AND a Kasu (chaff) card. It completes Tsukimi-zake with the August moon and Hanami-zake with the March cherry-blossom Bright. Secure it not for one combo but because it advances multiple lines at once — and denying it to your opponent kills two of their plans in a single capture.

Watch your opponent's ribbons — block the fifth

Ribbons (tan) yaku score on five. The moment your opponent shows FOUR ribbon cards on their captured side, your priority shifts from building your own hand to capturing or denying the matching fifth ribbon from the field — even at the cost of your own tempo. The same logic applies to the blue (aoTan) and poetry (akaTan) scrolls, which carry higher worth. Defense in Koi-Koi is capture-denial, not blocking moves.

Never force a karakuri box — swelling, not difficulty, is usually the wall

If a Hakone himitsubako suddenly won't make a move it made before, the wood has swollen or shrunk — these boxes were crafted in ~50% humidity Japanese air, and in a drier or wetter room the panels bind. Do NOT push harder; the Karakuri Creation Group's own guidance is literally 'instead of exerting excessive force to open, please contact us.' Acclimate the box, store it in its gift box or a loose plastic bag to buffer air changes, keep it off windowsills and away from AC vents and direct sun. A stuck panel is a climate problem 90% of the time, not a solving problem.

Everything Kenji has written

Harmonies vs. Cascadia: Which Cozy Puzzle Wins in 2026?
Comparison

Harmonies vs. Cascadia: Which Cozy Puzzle Wins in 2026?

“Two nature puzzles with one shared silhouette and different disciplines beneath it. I wrote this for the shelf staring at both boxes: Cascadia teaches adaptation; Harmonies teaches commitment. The right choice is the pressure your evening can hold.”

Best Solo Games (2026): From Quiet Fillers to Epic Campaigns
Best Of

Best Solo Games (2026): From Quiet Fillers to Epic Campaigns

“The solitary game is not lesser company — it is a different attention. I gathered eleven, from a fifteen-minute koan to a campaign you can vanish inside for a month. Alone is not empty. It is the room cleared so you can finally hear the game.”

Heirloom Gaming Tables: Luxury Furniture That Lasts Generations
Buying Guide

Heirloom Gaming Tables: Luxury Furniture That Lasts Generations

“Heirloom tables meant to outlast their first owner — furniture with lineage, made to be handed down. For the collector who buys once, and well.”

Nintendo Daitoryo Hanafuda: Holding Nintendo's 1889 Origin Story in Your Hands
Deep Dive

Nintendo Daitoryo Hanafuda: Holding Nintendo's 1889 Origin Story in Your Hands

“I wrote this to put 1889 in your hands — Nintendo's first product was a flower-card deck, and the Daitoryo grade is its honest heir. For anyone who wants to hold an origin story, not just read one.”

The Best Engine-Building Board Games of 2026, Ranked
Comparison

The Best Engine-Building Board Games of 2026, Ranked

“I sorted these engine-builders by weight, the way a sensei sorts students — gateway masterpiece below, modern heavyweight above. The engine click is a single sensation a whole generation learned to chase. The engine does not run faster than you understand it.”

Mahjong
Masterclass

Mahjong

“A tile game of suits and seasons and careful reading of the table — kin to hanafuda in its bones. I made it to teach the discipline of the wall, not just the rules.”

One Piece Card Game
Masterclass

One Piece Card Game

“A newcomer's path into a game with its own rituals of handling and play. I wrote it patient and plain — define the term, then teach it.”

Yu-Gi-Oh!
Masterclass

Yu-Gi-Oh!

“I approach a trading card game the way I approach any deck: with respect for its ritual and its handling culture. This is the calm doorway in, period and provenance included.”

Ace's Execution Hits the Table: How One Piece's Darkest War Became 2026's Hottest Card Set in America
Campfire Tale

Ace's Execution Hits the Table: How One Piece's Darkest War Became 2026's Hottest Card Set in America

“Oda drew Marineford as One Piece's great wound; OP-16 "The Time of Battle" presses Ace's execution into cardboard. Every shuffle makes you choose a side of a public killing. The shuffle asks the question the war never answered: which side were you on?”

Best Deck-Building Card Games 2026: Dominion, Aeon's End, Marvel Champions
Comparison

Best Deck-Building Card Games 2026: Dominion, Aeon's End, Marvel Champions

“Donald X. Vaccarino founded the genre with Dominion in 2008 — one act, the deck you assemble, repeated. I set Aeon's End and Marvel Champions beside it to show four schools speaking one grammar. One mechanic, many masters; the deck you build is the self you reveal.”

Nintendo's First Product Was a Card Game: The Flower Cards Behind Koi-Koi Are Quietly Conquering America Again
Campfire Tale

Nintendo's First Product Was a Card Game: The Flower Cards Behind Koi-Koi Are Quietly Conquering America Again

“The 48 cards, the twelve month-suits, the Heian poems folded into pine and willow and moon. I made it for the reader who senses these cards are more than a game and wants to know exactly how much more.”

Premium Artisan Dice Sets: Japanese Craft, Resin & Gemstone Collectibles
Buying Guide

Premium Artisan Dice Sets: Japanese Craft, Resin & Gemstone Collectibles

“Japanese craft, resin, gemstone — dice as objects with makers and lineage, not just randomizers. I revere the grain and the cut, and this guide is where I let that show.”

R'lyeh Rises Again: Arkham Horror Begins Chapter Two After Cthulhu Drowned the City
Campfire Tale

R'lyeh Rises Again: Arkham Horror Begins Chapter Two After Cthulhu Drowned the City

“R'lyeh sank into Lovecraft's 1928 "The Call of Cthulhu"; The Drowned City raises it again as Chapter Two. I traced what survives in a town the calamity spared but did not leave whole. The city did not drown. It only learned what it was made of.”

ROKR Mechanical Wooden Building Kits: Difficulty Guide (2026)
Buying Guide

ROKR Mechanical Wooden Building Kits: Difficulty Guide (2026)

“Mechanical wooden kits sorted honestly by what they demand of your hands and patience. For the builder who wants to know the work before committing the evening.”

Digimon Card Game 2026: Set Guide & Best Boosters
Buying Guide

Digimon Card Game 2026: Set Guide & Best Boosters

“A set guide for collectors who want to know what to seek and what to skip. Provenance over packaging, as always.”

Siebenstein-Spiele Wooden Puzzle Boxes: Difficulty Levels & Starter Guide
Buying Guide

Siebenstein-Spiele Wooden Puzzle Boxes: Difficulty Levels & Starter Guide

“A difficulty guide written in step-counts, not feelings — because 'hard' is weather and a step-count is a fact. For the beginner who wants the right first box, not the most punishing one.”

Yu-Gi-Oh TCG 2026 Starter Sets & Beginner Decks: Play Your First Duel
How-To

Yu-Gi-Oh TCG 2026 Starter Sets & Beginner Decks: Play Your First Duel

“Starter sets and a first duel, explained without hype. For the player who wants to begin correctly and learn the deck's honest lines before chasing the flashy ones.”

Twilight Imperium: Fourth Edition Review — The Epic Galactic 4X, Examined
Deep Dive

Twilight Imperium: Fourth Edition Review — The Epic Galactic 4X, Examined

“Christian Petersen first launched Twilight Imperium in 1997; the Fourth Edition is its fullest galaxy — seventeen asymmetric peoples, a board built hex by hex, a day swallowed whole. I traced its lineage and how a turn truly flows. The galaxy is not too long. You simply have not yet decided to live in it.”

War of the Ring (Second Edition): A Patient Reckoning With Tolkien's Whole War
Deep Dive

War of the Ring (Second Edition): A Patient Reckoning With Tolkien's Whole War

“Di Meglio, Maggi, and Nepitello shaped War of the Ring's Second Edition into a duel — two players, two paths to victory, one Ring carried east. I examined it slowly, on its own patient terms. The Ring is not carried by haste. It is carried by the will to keep walking.”

Are Gaming Tables Worth It? Board Game Tables Compared (2026)
Buying Guide

Are Gaming Tables Worth It? Board Game Tables Compared (2026)

“The honest accounting of whether a dedicated table earns its place. No hype — just what it costs, what it gives, and who should actually buy one.”

Best Dice Towers (2026): The Keeper's Complete Guide, From $20 Bamboo to Heirloom Hardwood
Best Of

Best Dice Towers (2026): The Keeper's Complete Guide, From $20 Bamboo to Heirloom Hardwood

“From a twenty-dollar bamboo tower to heirloom hardwood — a keeper's ranking by craft and material, because even the path a die falls down deserves consideration.”

Best Dice Trays & Rolling Trays, Ranked (2026)
Buying Guide

Best Dice Trays & Rolling Trays, Ranked (2026)

“The contained roll is old discipline — four walls, a soft floor, the clatter answered by quiet. I ranked ten trays, from eleven dollars to three hundred, by how honestly each holds the throw. The wall does not stop the roll. It gives it somewhere to rest.”

Best Speed Cubes for Beginners, Ranked (2026)
Buying Guide

Best Speed Cubes for Beginners, Ranked (2026)

“Even speed — all motion and tempo — has a craft lineage worth respecting. I wrote the beginner's ranking so a newcomer starts with an honest cube, not a toy.”

Wingspan Strategy Guide: How to Build a Point Engine That Snowballs
Strategy Guide

Wingspan Strategy Guide: How to Build a Point Engine That Snowballs

“Elizabeth Hargrave built Wingspan around real birds and a quiet engine most players never start. I wrote how to sequence turns and turn a handful of eggs into a snowball. The board is not beautiful and useful. It is beautiful because you made it useful.”

Wingspan vs Ark Nova vs Everdell: Which Engine-Builder Belongs on Your Shelf?
Comparison

Wingspan vs Ark Nova vs Everdell: Which Engine-Builder Belongs on Your Shelf?

“Three students of one engine-building lineage — Wingspan, Ark Nova, Everdell. I traced the bloodline through weight, teach time, table presence, replay, and solo play. They share a grandfather. What you choose is which inheritance suits your table.”

✦ Kenji can’t stop thinking about

What I am obsessed with right now: re-learning to lose. I keep calling Koi-Koi when I should bank — and the deck is teaching me the difference between greed and patience, one moonlit round at a time.

Nintendo Daitoryo hanafuda deck (the 'President' grade) playing Koi-Koi

The Daitoryo is the premium Nintendo grade — tile-thick cards you play down like little wooden plaques, not flimsy paper you shuffle. Holding the moon card and the sake cup in the same hand, I face the oldest decision in the game: stop and take the points (agari), or shout koi-koi and risk it all for a bigger yaku. It is a 19th-century deck still teaching a modern lesson about when enough is enough. The cards were always about the seasons; lately they are about restraint.

✦ Collect the curator — card 3 of 6
KenjiKeeper
Kenji, The SenseiThe Sensei · keeper of the lore
Every object has a lineage. Let me tell you its story.
Puzzlewick · Curator Card№ 3/6
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The fortune-teller's table

Dax has read three for you

“I don't usually believe in this. But the ball's rarely wrong, and it picked three. Look.”— Dax, The Critic