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 Kc1 win in 3 half-moves
3 Kc2 win in 3 half-moves
4 Kc3 win in 3 half-moves
5 Ke2 win in 3 half-moves
6 Ke3 win in 3 half-moves
7 Re5 win in 3 half-moves
8 Rf2 win in 3 half-moves
9 Rf3 win in 3 half-moves
10 Rf4 win in 3 half-moves
11 Rf1 win in 9 half-moves
12 Ka3 draw
13 Kb3 draw
14 Kd1 draw
15 Kd3 draw
16 Ke1 draw
17 Rd5 draw
18 Rf6 draw
19 Rg5 draw
20 Rh5 draw
21 Ka5 loss in 2 half-moves
22 Kb5 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Rb5 loss in 2 half-moves
25 Rc5 loss in 2 half-moves
26 Rf7 loss in 2 half-moves
27 Rf8 loss in 2 half-moves