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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc6 win in 5 half-moves
3 Ka7 draw
4 Kb5 draw
5 Kb6 draw
6 Kb8 draw
7 Kd4 draw
8 Kd5 draw
9 Kd6 draw
10 Rd4 draw
11 Re3 draw
12 Re5 draw
13 Re6 draw
14 Re7 draw
15 Re8 draw
16 Rf4 draw
17 Rg4 draw
18 Rh4 draw
19 Kb4 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Re2 loss in 2 half-moves