As for antidraughts, you might adapt some principles from English antidraughts; a digitalized book is available at https://books.google.com/books/about/The_Sheffield_Draught_Player.html?id=N1hVAAAAcA…

Automatic capture is justified when it is forced (no other options). Only kids (and not all kids) can enjoy that all possible captures are indicated and that a computer stops automati capture at point…

Frisian puzzle #22: Alternative solution 1. .. 18-23 (natural idea which comes into mind because of many holes) 3. 24x4 (maximum capturing rule) 13-19 (free tempo) 3. 4x36 (king's primacy rule) …

There is an alternative solution, although it is a bit longer, but the tactical motif can be spotted easier: 1.48-42 37x48 2.17-12 7x18 3.15-10 5x14 4.44-39 48x34 5.35x4 18-22 6.4x27 36-41 7.27-31 …

Diagonal draughts on 10x10 board with International or Frisian capturing rules can be implemented easily. The difference consists only in initial position and crowning squares. For diagonal Intern…

(1) On 8x8 board a good solution is implemented in Checkersland application where Russian tower draughts and laska are included among other variants. (2) Of course, tower draughts could be played bet…

As well, there are tower draughts variants where piece "reanimation" is possible. On 8x8 board it is often played according to Russian capturing rules (see https://en.wikipedia.org/wiki/Bashni and a v…

Scan fails to see winning plan in famous Scouppe position: https://lidraughts.org/study/CNOQ5MNQ/TNY3BYaL .

There is a good crossover between draughts and chess called "Altai shatra" where dropping pieces from specific board zone (i. e., fortress) is possible. The board and rules may appear complicated at …

Here is a nice puzzle that Scan was unable to solve even at depth 37: https://lidraughts.org/study/foIbE6cs/FEuzIPfi (I dare to say that any upper-intermediate player can solve it easily).