This is an additional rule? It's probably just me but the way it's positioned in the article makes it seems as if it should be derivable from the other rules…
In any case, I take it that means that a frog that reaches the far rank while there's already a Tsarevna on the board (or there have already been 3) simply remains as it is?
Made them bolder and done some minor editing. This is ready, yeah?
Made them bolder and done some minor editing. This is ready, yeah?