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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Ka6 draw
3 Kb6 draw
4 Kc6 draw
5 Kc7 draw
6 Rb6 draw
7 Ka7 loss in 36 half-moves
8 Kb8 loss in 32 half-moves
9 Ra5 loss in 26 half-moves
10 Kc8 loss in 16 half-moves
11 Ka8 loss in 4 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rf5 loss in 1 half-moves
19 Rg5 loss in 1 half-moves
20 Rh5 loss in 1 half-moves