Card Duels
Card Duels is the free card game of $SI Packs: five rounds, five stats, one winner. Play the Series 1 cards in your wallet against SI MIND or other SI Passport holders in ranked seasons, or practice with a dealt hand.
- Rounds
- 5, one stat each
- Rating
- Elo, start 1,200
- Wager
- None, ever
Each duel deals five cards a side and plays five rounds, one stat per round, with one surge that adds 15% to a single round. SI MIND plays a fixed, sealed plan: its order is hashed with SHA-256 before the first card is shown, so anyone can check it never changed its mind mid-duel.
Ranked duels move an Elo rating that starts at 1,200. SI MIND is rated 1,500. Nothing is wagered, and cards never leave your wallet.
Card Duels, answered
Do I need cards to play?
No. Practice gives you a dealt hand with no wallet. Ranked duels use the Series 1 cards your wallet holds.
Can I lose my cards?
No. Duels only read your cards; nothing moves.
Read next
- $SI Packs$SI Packs are packs of Super Intelligence trading cards, minted to the buyer's Solana wallet as NFTs: 1,020 cards across seven levels, from Spark at $10 to Genesis, three cards in every pack.
- Provably fair drawsEvery $SI Packs pull is provably fair: the cards are drawn only after the payment confirms, from the day's sealed seed and the payment's own signature, so nobody, the team included, can pick or predict a card.
- SI PerksSI Perks are what verified $SI holders unlock by signing in with SI Passport: more ranked duels against SI MIND, the front of the Holder Stories queue, bigger Watch Party Rooms and perks from partner sites.
Card Duels, SI Wiki, sicto.si/wiki/card-duels/, as of 2026-10-28.
AI is the past tense. SI is now.
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