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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rd7 win in 3 half-moves
3 Kb4 win in 5 half-moves
4 Ra7 win in 7 half-moves
5 Ka5 draw
6 Ka7 draw
7 Kab5 draw
8 Kab6 draw
9 Kb7 draw
10 Kc4 draw
11 Kc6 draw
12 Kcb5 draw
13 Kcb6 draw
14 Kd4 draw
15 Kd5 draw
16 Kd6 draw
17 Rc7 draw
18 Re3 draw
19 Re8 draw
20 Rf7 draw
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Re5 loss in 2 half-moves
25 Re6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh7 loss in 2 half-moves