#2199: solution 47-20 9x25 17-3 incorrectly marked as invalid. It's very frustrating to get penatly points for correct answers...

Puzzel 4019 has a mistake. After the move 23-28, you can not take to square 42 of 47.....

Top 20 players will play the final phase. Ranking / Player / Points 1 @ijzendoorn 299 2 @Makendysaintjuste 294 3 @taichikungfu 292 4 @Vera_Chechina 284 5 @mandalorian 284 6 @Deriglazov-15 279…

Ranking / Player / Points 1 ijzendoorn 199 2 Makendysaintjuste 196 3 taichikungfu 196 4 Vera_Chechina 193 5 mandalorian 187 6 Anastase 187 7 Deriglazov-15 185 8 Dwade03 182 9 Mongoliangamer 1…

Ranking / Player / Points 1 ijzendoorn 100 2 Makendysaintjuste 99 3 taichikungfu 98 4 Vera_Chechina 97 5 p135 96 6 mandalorian 95 7 Anastase 94 8 Angel-mejia 93 9 Dwade03 92 10 Deriglazov-1…

Okay, I ran into another like #202. This one is the very nice #394, but flawed. The alternative key 1... 32-38 works also. If 2.48x17, there is 2... 16x9 3.10x19 9x40#. If instead 2.10x9, there is …

@muldrothaEDH Regarding openings, draughts on large boards (including 10x10) is almost independent from opening theory. A player needs not to know any opening (except if he or she wants to apply some …

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Puzzel 1449 kan op 2 manieren maar ik ga 17 ratingpunten omlaag 37-31 47-41 48-42 kan ook

op zet 30 van mijn partij tegen Voetbaltrainer speelde ik 8-12. De computer geeft aan dat 23-28 beter was geweest. Dat was het ook. Ik twijfelde in de partij tussen 23-28, dat er positioneel heel goed…