my solution for android, basically a parity check:
?lvl=17&code=c12:4f3;c8:6f3;c8:7f2;c8:8f1;g9:6f0;c9:7f2;y9:8f0;c10:5f3;i10:6f1;c10:7f2;i10:8f0;c10:9f1;i11:5f2;p11:6f1;p11:7f2;p11:8f3;i11:9f6;c12:5f0;c12:6f1;c12:8f3;c12:9f0;q14:7f2;q14:6f1;q14:8f3;c12:7f2;c13:7f2;c15:6f1;c15:5f0;i14:5f2;c13:5f3;c13:6f3;c15:8f3;c15:9f0;i14:9f6;c13:9f1;c13:8f1;c15:7f2;c16:7f3;c16:8f3;c16:10f3;c16:9f3;c16:11f0;c15:11f0;c14:11f0;c13:11f0;
it's better than 1, but i don't like that you cant see your arrows or the enemies arrows on some underground textures (eg red arrows on underworld).
finished the games just with bow, no melee, no bomb, no magic