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 Rb8 win in 3 half-moves
3 Ka5 draw
4 Ka8 draw
5 Kb8 draw
6 Ra1 draw
7 Rb2 draw
8 Rb3 draw
9 Rh1 draw
10 K6b6 loss in 2 half-moves
11 K6b7 loss in 2 half-moves
12 K7b6 loss in 2 half-moves
13 K7b7 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg1 loss in 2 half-moves