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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb1 draw
3 Kb2 draw
4 Kb3 draw
5 Kc1 draw
6 Kc3 draw
7 Kd2 draw
8 Kd3 draw
9 Ra4 draw
10 Rb2 draw
11 Rb3 draw
12 Rc4 draw
13 Rd4 draw
14 Re4 draw
15 Rf4 draw
16 Kd1 loss in 10 half-moves
17 Rb1 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves