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 Kc3 win in 5 half-moves
3 Kc5 win in 5 half-moves
4 Kd3 win in 5 half-moves
5 Rc1 win in 5 half-moves
6 Rc3 win in 5 half-moves
7 Rc2 win in 9 half-moves
8 Kb6 draw
9 Kc1 draw
10 Kc2 draw
11 Kc7 draw
12 Kd1 draw
13 Kd5 draw
14 Kd6 draw
15 Ke1 draw
16 Ke2 draw
17 Ke3 draw
18 Ra4 draw
19 Rb4 draw
20 Rd4 draw
21 Re4 draw
22 Kb7 loss in 2 half-moves
23 Kd7 loss in 2 half-moves
24 Rc5 loss in 2 half-moves
25 Rf4 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves