Hi. 0-0 is a ilegal move? I have a game against Student89 sarted 17 April 2017. My colour is white, the movings are: 1. e4 c5, 2. Nf3 Nc6, 3. Bb5 d6, 4. h3 Kf6, 5. e5 dxe5, 6. Nxe5 Qd5, 7. Bxc6+ bxc6 8.- Nf3 De6+, 9. Qe2 Qxe2+ 10. Kxe2 Ba6+, 11. Ke1 Nd5, 12. d3 c4 and I want to move 13.- 0-0 But Brainking doesn´t allows me to do this. There is no check over my King neihter checkin his way. So, why not is allowed 0-0 in this position. There is a mistake of programation in this site.