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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb5 draw
3 Kc4 draw
4 Kc6 draw
5 Kd4 draw
6 Kd5 draw
7 Rb2 draw
8 Rb5 draw
9 Rc4 draw
10 Rd4 draw
11 Kb6 loss in 4 half-moves
12 Kd6 loss in 4 half-moves
13 Ra4 loss in 4 half-moves
14 Re4 loss in 4 half-moves
15 Rb1 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rf4 loss in 1 half-moves
20 Rg4 loss in 1 half-moves
21 Rh4 loss in 1 half-moves