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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kc5 win in 3 half-moves
3 Kd5 win in 3 half-moves
4 Kd6 win in 3 half-moves
5 Kd7 win in 3 half-moves
6 Rd4 win in 3 half-moves
7 Re5 win in 3 half-moves
8 Re6 win in 3 half-moves
9 Re7 win in 3 half-moves
10 Re8 win in 3 half-moves
11 Ka6 draw
12 Ka7 draw
13 Ka8 draw
14 Kb8 draw
15 Kbb6 draw
16 Kbc7 draw
17 Kc8 draw
18 Kcb6 draw
19 Kcc7 draw
20 Rc4 draw
21 Re3 draw
22 Rf4 draw
23 Rg4 draw
24 Rh4 draw
25 Ra4 loss in 2 half-moves
26 Rb4 loss in 2 half-moves
27 Re1 loss in 2 half-moves
28 Re2 loss in 2 half-moves