An annihilation game on a hex board: larger (or equal) groups destroy smaller neighbouring groups, and you win by clearing the opponent off the board.

Inventor: Corey Clark

Published listing: BoardGameGeek: Surmount.

Board size only. Default is hexhex 5.

• Current engine version: 20260731 (2026-07-31). On Abstract Play since 2025-03-21.
• Older saved games on versions 20250313 and 20260731 use the equal-or-larger opening capture described above. An intermediate version captured extra strictly-smaller neighbouring groups at once; current new games use 20260731.

• https://boardgamegeek.com/boardgame/436268/surmount