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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kd4 win in 7 half-moves
3 Kc4 win in 9 half-moves
4 Ra3 win in 9 half-moves
5 Ra6 win in 9 half-moves
6 Ra1 draw
7 Ra8 draw
8 Rf4 draw
9 Rg4 draw
10 Rh4 draw
11 Kb2 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Kb7 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Kc7 loss in 2 half-moves
19 Kd2 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Kd6 loss in 2 half-moves
23 Kd7 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Ra5 loss in 2 half-moves
26 Ra7 loss in 2 half-moves
27 Rb4 loss in 2 half-moves
28 Rc4 loss in 2 half-moves
29 Rd4 loss in 2 half-moves
30 Re4 loss in 2 half-moves