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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ka5 draw
3 Kb5 draw
4 Rb1 draw
5 Rb5 draw
6 Rb7 draw
7 Rb8 draw
8 Rd4 draw
9 Re4 draw
10 Rf4 draw
11 Rh4 draw
12 Ka7 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Kc8 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ke8 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rg4 loss in 2 half-moves