Hello draughtslovers! I'm happy to give you all the update that the first 24 chapters (out of 25) of the Tjalling's Pre-Course are finished. You can find them all here: https://lidraughts.org/study…

Oh, 24-30 on move 3. 1..23-29, 13-19, 21-27 and 11-17 is also winning.

Interesting. Yes, it seems to be winning, but it is clearly less good in the following line: 33-28 14-19 27-22 19x30 18x19 13x33 22x4 17-22!

Author here. @Jeffrey Congratulations on the draw! Scan probably made mistakes when answering you, however. The version I'm using is slightly different, and plays those moves (even with only…

For some unknown reason Scan doesn't play the right moves. After 7. ... 27-31 ? the position is lost for Black (Dragon Draughts database). Maybe Scan doesn't use endgame database in lidraughts ? Anyw…

There's something weird going on here. If you play 21. 15-33 instead of 15-42 then Scan will indicate that the value of the position is 0 and that the best move is 16-27, no matter how long you let it…

Thnx, I understand. The extra game is interesting. I suppose the 'Meike move' is 27-22 on move 6? And on 7-12 or 8-12 white will play 39-33, taking back with 34. Or is the Meike move 27-22 on move …

I got the question if 33-38 is really a good move. For an answer I need to trust other sources than myself, and yes it is indeed a reasonable way to play in this position. It seems counter-intuitive, …

@Tim I found this problem in puzzle 292 yesterday as well. We will disable it and put the same puzzle back in with all the correct solutions. (like for example puzzle 361, where now both 27-21 and 31-…

Only 7-12 is accepted as the first move, but 27-32 (and then 7-12) wins in the same way.