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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ka5 draw
3 Kb5 draw
4 Kc5 draw
5 Rb2 draw
6 Rb3 draw
7 Rc1 draw
8 Rd1 draw
9 Re1 draw
10 Rf1 draw
11 Ka6 loss in 2 half-moves
12 Ka7 loss in 2 half-moves
13 Kb7 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rh1 loss in 2 half-moves