Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 b6 win in 1 half-moves
2 Rc2 win in 1 half-moves
3 Rc4 win in 1 half-moves
4 Rc3 draw
5 Rc5 draw
6 Rh8 loss in 12 half-moves
7 Ra8 loss in 2 half-moves
8 Rb8 loss in 2 half-moves
9 Rc1 loss in 2 half-moves
10 Rc6 loss in 2 half-moves
11 Rc7 loss in 2 half-moves
12 Rd8 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves