Here's another Thud! endgame solution. Eight carefully arranged trolls trap the lone remaining dwarf in one of the free spacespic.twitter.com/OKjmPTx7jv
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In this case, move the top right or bottom left troll to block one of the two exits, forcing the dwarf to the other.
You can then do the same with the troll at the other end of the board, leaving the dwarf with no reachable unattacked spaces.
Alternatively, if the dwarf is in one of the groups of three spaces, they have free run of that little area but cannot reach the other.
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