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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb2 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Rb5 win in 3 half-moves
5 Ra7 draw
6 Rb3 draw
7 Rb6 draw
8 Rd7 draw
9 Re7 draw
10 Rf7 draw
11 Kg1 loss in 2 half-moves
12 Kg2 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Kg5 loss in 2 half-moves
15 Kh1 loss in 2 half-moves
16 Kh5 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves
21 K2g3 loss in 1 half-moves
22 K2h3 loss in 1 half-moves
23 K4g3 loss in 1 half-moves
24 K4h3 loss in 1 half-moves