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

EGTB: win in 4 half-moves

# move score
1 Ka3 win in 3 half-moves
2 Ka5 win in 3 half-moves
3 Kd4 win in 3 half-moves
4 Kab3 draw
5 Kab5 draw
6 Rb1 draw
7 Kc3 loss in 2 half-moves
8 Kc5 loss in 2 half-moves
9 Kcb3 loss in 2 half-moves
10 Kcb5 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rb8 loss in 2 half-moves