After 1. Qxa3 Kb8. Chess mentor expects you to play Bc2+ which mates in 2. Also correct is Rxc8+ which mates in 2 no matter how black responds.
If Kxc8, Qxb7#. If Rxc8, Qxb7#. If Qxc8, Qa8#.
Thanks, this has now been fixed.
After 1. Qxa3 Kb8. Chess mentor expects you to play Bc2+ which mates in 2. Also correct is Rxc8+ which mates in 2 no matter how black responds.
If Kxc8, Qxb7#. If Rxc8, Qxb7#. If Qxc8, Qa8#.