#4 Cool, 1 vs 4 could be interesting to learn. In this particular game 113. 15-4 seems the most beginner-friendly solution (113... 36-47 114. 43-49 47-36 115. 33-47).

If you do not like bullet, you can play under slower time controls. I think there are players here who can make 150 moves in 15 seconds. See for example @penguingim1.

It should work, you can enter moves with full notation as in 10-15 or 1x12 (with or without leading zeros), or just the src-dst squares, e.g. 1015 or 0112 (requires leading zeros)

@Andrea #15 that is a good idea, also @Hangrad you seem to be thinking about chocolate cake a lot xD