8by8verse Forks & Double Attacks
Now playable.
By 8by8verse · Every position is drawn from an open, machine-verified puzzle library.
Solve, then read
Black to play
Explain · what the move does
Tap a line to light it up on the board.
Every position is drawn from an open, machine-verified puzzle library.
🎟 Plans & pricing
Free to start. Three plans if you want more.
Start free. Upgrade only when you see the value. Cancel any time — no auto-renewal traps.
free
Free NCR
Start here. No risk.
- Permanent country-branded Player ID (BCR / USA / FRA …)
- Play any 8by8verse tournament
- First 2 tournament reports on us
- One free book chapter, one daily puzzle
bundle
NCR Pro
Your rating, coach, and analysis all year
Billed $6 / year
- Full NCR from every tournament on record
- Unlimited Stockfish-18 game analysis
- Adaptive puzzles and personal library
- Coach-in-pocket daily task
♥ Our promise — 8by8verse keeps this free wherever we can; the small fee only covers servers, APIs and the team. When impact funding comes through, we'll make it free for all over-the-board players.
Two more plans — Magazine and Learn Pro — and a school/club bulk option on the full pricing page.