Puzzle 2101: 1. 32-28 is also winning.

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 …

43-38 + 48-42 and 43-38 + 38-32 are also winning

Puzzle 1059: on the sixth move (with opposite kings) multiple wins are possible apart from the expected 38-32. My 38-33 (29x38 43x32 etc. try) was deemed wrong. I didn't check 42-37 and 47-41, but tho…

Puzzle 1542 can be solved in two ways: the solution as is, but also 1.33-29! (24x33) 2.38x29 (22x24) 3.34-29 (24x33) 4.42-38 (33x42) 5.32-27 (21x41) 6.36x38 (26x37) 7.48-42 (37x48) 8.40-34(48x30) 9.35…

I was testing Scan's endgame technique in International draughts by comparing human approach and AI approach. There is a nice puzzle by Noome and Hortsman (I quote their names by cyrillic retransla…

Also winning is 4.39-33, 5.37-31, 6.38-32 7.40-34

Also winning is 4.39x30 5.37-32 and 6.40-35, though I agree the white pieces are better placed after the accepted line 5.40x29.

it's ok,thanks you the difference it's after 1. 21-27, and so on,he can take 16*27 instead of 23*32 because of 21-26. and I didn't see 13-18 and 08-13 while white take 5*37