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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 K1a2 draw
3 K1b2 draw
4 K1c2 draw
5 K3a2 draw
6 K3b2 draw
7 K3c2 draw
8 Ka1 draw
9 Ka3 draw
10 Ka4 draw
11 Kb4 draw
12 Kc1 draw
13 Kc3 draw
14 Kc4 draw
15 Ra7 draw
16 Rc7 draw
17 Rd7 draw
18 Re7 draw
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rf7 loss in 2 half-moves
23 Rg7 loss in 2 half-moves
24 Rh7 loss in 2 half-moves