The pieces move exactly as they do on land. Everything else — the silence, the clock, the gauge, the penalty for a clumsy fin — is what makes it Diver’s Gambit. Played in buddy teams over a weighted board, communicating only by slate and hand signal.
When a match isn’t settled by mate, captured material is tallied the conventional way — then remaining air breaks ties. Both are resources you spent to get here.
No voice underwater. Teams run a consolidated signal system over the slate, confirming intent before any piece is touched. Learn these cold — they are the whole conversation.
The team slate mirrors the board — files A–H, ranks 1–8. Buddy teams sketch arrows and piece initials (K, Q, B, N, R, P) to propose a move, agree it, then commit. It is where the Thinker and the Mover meet.
Suggested slate layout (course appendix). Notate a move as piece + square — e.g. N → F3 — and draw the arrow.
One buddy wears a mask cover and cannot see the board; the other describes the position and moves entirely on the slate.
Switch turns on a fixed interval — every three to five minutes, or at a set air threshold.
Play at dusk or after dark with underwater lights trained on the board.
Swap in sea-creature, pirate, or fantasy sets — cosmetic, but it sets the mood.
Drop a piece and your team forfeits its next turn, then performs a controlled, non-silting recovery together.
Underwater tournaments follow traditional FIDE-style chess with diving adaptations. Matches are played in buddy teams at a 6 m / 20 ft minimum, on a weighted board with a slate.
There’s only one way to find out. Ask us about the next course.