Chani Actually, by replaying Alice in Wonderland this year, I've found hidden exp bonus in #1 Challenge. Concerning there are only pawns and 12 for each colour, it's not the Chess, but a Checkers board! When you line up the white pawns in 3 bottom rows on black tiles and the black pawns in 3 top rows on white tiles you get the exp bonus. Like on the screen shot. 
