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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Kc3 draw
3 Kc4 draw
4 Kd3 draw
5 Ke3 draw
6 Ke4 draw
7 Rb1 draw
8 Rb2 draw
9 Rb3 draw
10 Kc5 loss in 2 half-moves
11 Kd5 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc4 loss in 2 half-moves