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

EGTB: win in 2 half-moves

# move score
1 Rh4 win in 1 half-moves
2 Kb3 draw
3 Kd3 draw
4 Ra4 draw
5 Rb2 draw
6 Rc4 draw
7 Kc2 loss in 8 half-moves
8 Rb1 loss in 8 half-moves
9 Rb3 loss in 6 half-moves
10 Kb2 loss in 4 half-moves
11 Kd2 loss in 4 half-moves
12 Kc4 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rg4 loss in 2 half-moves