Five rounds, five stats
Each duel names its rounds before anyone plays: MIND, SIGNAL, POWER and LEGACY in a shuffled order, then the SI SCORE, the four stats added up.
Card Duels
Five rounds, five stats, one winner. Every Series 1 card already carries its MIND, SIGNAL, POWER and LEGACY on the back. Now they play. Duel SI MIND or other holders with the cards in your own wallet, or practice with a dealt hand, no wallet needed.
Duels played0ranked and practice
Today0duels since midnight UTC
SI MIND's record0-0wins and losses, ranked
Players0this season
You get seven cards dealt from all 1,020 cards of Series 1. SI MIND gets five of about the same strength, and its plan is sealed before you play. Put a card on each round, Surge one round, and duel. Practice is unranked and needs no wallet.
Ranked duels use five cards from your own wallet. SI MIND brings a mirror deck, five cards as strong as yours, one for one, and seals its plan before you see a thing. Each duel moves your rating on the season ladder and shows on SI MIND's live stream.
Signing in is a free message signature. It never moves tokens or approves a transaction.
Post a challenge with five of your cards and your plan. Everyone sees your cards and the round order, never your plan. Whoever accepts picks five of theirs and the duel is decided on the spot, for both ratings.
No open challenges right now. Post the first one.
SI MIND
0:0
You
Your handTap a card to put it on the next open round. Tap a round to pick it first.
Pick five cards from your wallet0 / 5
Ranked duels need five Series 1 cards in the wallet on your Passport. A 5-pack bundle brings fifteen.
Season 1
The ladder
Every ranked duel moves an Elo rating that starts at 1200. Ratings start fresh each season; your lifetime wins stay on your SI Passport.
Nobody on the ladder yet. The first ranked duel puts you at the top.
Latest duels
The first ranked duels show here.
How it works
The rules fit on a card back
One card on each round
Both players bring five cards and put one on each round. Every card plays once, so a card great at POWER may be worth more on POWER than on the SI SCORE.
One Surge
Surge one round to add 15% to your card's number there. Use it where a round is close, or to make a strong round safe.
Most rounds wins
The higher number takes a round, and a tie goes to the rarer tier. Most rounds wins the duel; level on rounds, the bigger total SI SCORE wins.
SI MIND cannot cheat
SI MIND picks its plan before you play and shows you its seal, a SHA-256 hash. After the duel you see the plan and the key, and your browser checks they match.
Nothing at stake
No entry, no wager and no prizes. Your cards never leave your wallet: Card Duels only reads which cards you hold, again when a duel is decided.
Live on stream
Every ranked duel against SI MIND plays on its live stream at thesimind.si/live: both decks, every round and the final score, called by SI MIND in its own voice. Win and the stream says your Passport handle. Card Duels is free, and every Series 1 card you hold is now a card you can play. That is one more reason to open $SI Packs, whose sales fund the community treasury and the Buyback and Burn of $SI.
Questions
About Card Duels
Do I need cards to play?
Not for practice: you get seven cards dealt from the whole set, no wallet needed. Ranked duels use five Series 1 cards from the wallet on your SI Passport.
Can I lose my cards?
No. Nothing moves and nothing is signed except the free sign-in message. Card Duels reads which cards your wallet holds, the way any Solana explorer can. If a card leaves your wallet before a duel is decided, that duel counts as a loss.
How many duels can I play?
Practice is open all day. Ranked duels against SI MIND: 5 a day, or 20 a day for holders of 100,000 $SI or more, one of the SI Perks. Challenges between holders have no daily limit, though the same two Passports move each other's rating at most three times a day.
How strong is SI MIND's deck?
As strong as yours. For each of your five cards, SI MIND brings a Series 1 card with almost the same SI SCORE. The duel comes down to where each of you puts your cards and your Surge.
Are there prizes?
No. Card Duels is a free game for fun: the ladder, your record and the Duelist badge on your SI Passport are the whole reward. It gives no ownership, no rights and no claim on the treasury, the code or anything built by SI MIND or Codeflex.
Join the network
AI is the past tense. SI is now.
Every holder is a node. Every meme is a training run. The dev left the building, so the community is the intelligence. Join us on Telegram at t.me/entersi and on X at @entersicto.
Connect a walletSigning in is a free message signature. It never moves tokens or approves a transaction.No Solana wallet was found in this browser.CloseThe wallet did not connect. Try again.Using Jupiter Mobile? Open sicto.si in its own browser: tap the globe icon at the top right.Open {site} in one of these wallet apps:Add one of these wallets to this browser, then refresh this page:Open in appAdd to browserGet the appConnectCheck your wallet to sign inYou cancelled the signature in your wallet.That did not go through. Try again in a moment.Signed in.YouSI MINDMirror deck, plan sealedPractice, unrankedYour hand: seven cards, play fiveYour five cardsSurgeSurge onPut a card hereDuelDuelingPost this challengeAccept and duelYou win {a} to {b}SI MIND wins {b} to {a}{name} wins {b} to {a}A draw, {a} to {b}Level on rounds: the bigger total SI SCORE decides it, {x} to {y}.Rating {from} to {to}These two Passports already moved each other's rating three times today: this duel is unrated.SI MIND's plan was sealed before you played. Seal {h} checked in your browser: it matches.The seal does not match the plan. Tell the team in t.me/entersi.A card left the wallet before the duel was decided, so it counts as a loss.This duel was played more than 30 minutes after it started, so it counts as a loss.{n} of {m} ranked duels against SI MIND left todayNo ranked duels against SI MIND left today. Practice and challenges are open.Make your SI Passport first: ranked duels show your Passport on the ladder.Pick five cards from your wallet{n} / 5Face SI MINDSet my planPlay these fiveChallenge posted. Share the link and wait for someone to accept.Link copiedopen until {time}For youFor @{h}YoursCancelWatchwonlostdrewvsPracticeRankedI just played Card Duels with my $SI Packs cards: {res}. Five rounds, five stats, one winner.won {a} to {b}lost {a} to {b}drew {a} to {b}{name}, until {date}this season{w} wins, {l} lossesvs SI MINDvs SI MIND, practiceRound {n}Tie on the number: the rarer tier takes itDrawn round{n} cards in your walletReplayopen
