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 Rb1 draw
3 Rb2 draw
4 Rb6 draw
5 Re5 draw
6 Rf5 draw
7 Rg5 draw
8 Rh5 draw
9 Ka7 loss in 2 half-moves
10 Ka8 loss in 2 half-moves
11 Kbb7 loss in 2 half-moves
12 Kbc7 loss in 2 half-moves
13 Kcb7 loss in 2 half-moves
14 Kcc7 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rd5 loss in 2 half-moves