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 Kb5 win in 3 half-moves
3 Kc2 win in 3 half-moves
4 Ra4 win in 3 half-moves
5 Rb4 win in 3 half-moves
6 Rc4 win in 3 half-moves
7 Re1 win in 5 half-moves
8 Re2 win in 5 half-moves
9 Kb2 win in 9 half-moves
10 Ka2 win in 11 half-moves
11 Ka1 draw
12 Kb6 draw
13 Kc1 draw
14 Kc4 draw
15 Kc6 draw
16 Kd4 draw
17 Kd5 draw
18 Kd6 draw
19 Rd4 draw
20 Re3 draw
21 Re5 draw
22 Rf4 draw
23 Re6 loss in 2 half-moves
24 Re7 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves