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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Ka6 win in 7 half-moves
3 Kd7 win in 7 half-moves
4 Rb8 win in 7 half-moves
5 Kd8 win in 9 half-moves
6 Ka8 draw
7 Kab7 draw
8 Kab8 draw
9 Kb6 draw
10 Kc7 draw
11 Kcb7 draw
12 Kcb8 draw
13 Ra1 draw
14 Rb2 draw
15 Rb6 draw
16 Rc1 draw
17 Rd1 draw
18 Rh1 draw
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Re1 loss in 2 half-moves
23 Rf1 loss in 2 half-moves
24 Rg1 loss in 2 half-moves