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 Rc7 win in 3 half-moves
3 Rd7 win in 3 half-moves
4 Ra7 draw
5 Re7 draw
6 Rf7 draw
7 Rg2 draw
8 Rg3 draw
9 Rg4 draw
10 Rg5 draw
11 K2b2 loss in 2 half-moves
12 K2b3 loss in 2 half-moves
13 K2d2 loss in 2 half-moves
14 K2d3 loss in 2 half-moves
15 K3b2 loss in 2 half-moves
16 K3b3 loss in 2 half-moves
17 K3d2 loss in 2 half-moves
18 K3d3 loss in 2 half-moves
19 Kb1 loss in 2 half-moves
20 Kb4 loss in 2 half-moves
21 Kc1 loss in 2 half-moves
22 Kc4 loss in 2 half-moves
23 Kd1 loss in 2 half-moves
24 Kd4 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh7 loss in 2 half-moves