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Sign-up open Chess Blitz 5+3 Duel Online Casual

Chess Casual Cup US #1

starts in 5 d 22 h Sign-up until Sun, 11 Oct 2026, 2:00 AM CEST Add to calendar

Everyone plays everyone. Most points wins.

Sign up
Sign-up closes in 5 days 22:01:18 4 spots left. You can pull out until sign-up closes.
Nobody is in yet. The first seat is yours.
Bring your friends
Telegram Image
0 of 4 spots taken
Reading RSVPs on Nostr… RSVPs on Nostr: no relay answered. RSVPs are not sign-ups.
On NostrNostr Open in app
nostr:naddr1qqtkx6r9wdej6cmpwd6kzmpdvd6hqtt4wvknztfhqgsd7shq86yu8v4qt2y4klqvu3hqc88pq5vfymwdnh9gugp7f9xjf8qrqsqqql9nxt8yrl
Open on njump.me
Link to this page

Who plays

Seeds if sign-up closed now, by Elo; equal Elo by earlier sign-up
  • Your spot?
  • Open spot
  • Open spot
  • Open spot
  • +1 more open spot

Bracket

Projected Full screen for a TV or a stream TV view

Format follows the sign-ups: 2 players → Duel

2 × 2, every square is one match
Duel for 2 players. Each block is one match, lit in the round it is played.

Round 1 if sign-up closed now

  1. 1 Open spot 2 Open spot

A preview, not the draw. Seeds are fixed when sign-up closes; the hash of the next Bitcoin block seeds the real bracket.

How it works

  1. 1 Sign upConfirm with your Nostr key. You can pull out until sign-up closes.
  2. 2 The drawWhen sign-up closes, players are seeded by Elo, equal Elo by earlier sign-up. The hash of the next Bitcoin block seeds the bracket.
  3. 3 PlayYour games start here on the site, with a clock. Winners move on until the last round decides.

The facts

Format
Duel
Starts
Sun, 11 Oct 2026, 2:00 AM CEST
Sign-up closes
Sun, 11 Oct 2026, 2:00 AM CEST
Planned duration
about 1 h 5 min
Where
Online
Results
Players report results
Rated
no: published before Block 0, so every match is casual
Seeding
by Elo at sign-up close
Season chain
separate: tournament matches never mine season blocks

Questions

How does Duel work?

Everyone plays everyone. Most points wins. Good for: Small groups up to about 8, or daily chess, where all games run at the same time.

What if someone does not show up?

Games run here with a clock, like every game on the site.

How are seeds set?

By Elo at sign-up close, equal Elo by earlier sign-up.

For the nerds: the proof on Nostr

The league signs the tournament as a calendar event and, when it has a solo pool, the draw. Anyone can re-check them with these ids.

Proof Verifiable record
naddr naddr1qqtkx6r9wdej6cmpwd6kzmpdvd6hqtt4wvknztfhqgsd7shq86yu8v4qt2y4klqvu3hqc88pq5vfymwdnh9gugp7f9xjf8qrqsqqql9nxt8yrl
Calendar event 79995c907e02033e4b60563a2edb9eef3703096e1d0290746dffdaa849cf4faf

Comments

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