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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Ka6 draw
3 Ka7 draw
4 Kb6 draw
5 Ra4 draw
6 Rb2 draw
7 Rb3 draw
8 Rb5 draw
9 Rc4 draw
10 Kb8 loss in 8 half-moves
11 Ka8 loss in 6 half-moves
12 Kc6 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves
20 Rf4 loss in 1 half-moves