joshi tm: Yes. If one of your pieces is in position to Jump one of your opponent's pieces, you must make a capture sometime during that move. You can accomplish that mandatory capture either by the Jump, itself, or, if one is available, by a Knight's Charge.
(sakla) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (Bütün ipuçlarını göster)