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 Kb2 draw
3 Kb3 draw
4 Kc2 draw
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Rc4 draw
9 Kd2 loss in 4 half-moves
10 Kd3 loss in 4 half-moves
11 Ra4 loss in 4 half-moves
12 Rf4 loss in 4 half-moves
13 Kc4 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves