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 Re7 draw
3 Rf7 draw
4 Rg7 draw
5 Ka5 loss in 2 half-moves
6 Kab5 loss in 2 half-moves
7 Kab6 loss in 2 half-moves
8 Kb4 loss in 2 half-moves
9 Kc4 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Kcb5 loss in 2 half-moves
12 Kcb6 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves