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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kc5 draw
3 Kc6 draw
4 Kc7 draw
5 Kd5 draw
6 Kd7 draw
7 Ke5 draw
8 Ke6 draw
9 Ke7 draw
10 Rb1 draw
11 Rb2 draw
12 Rb3 draw
13 Rb5 draw
14 Rb6 draw
15 Rb7 draw
16 Rc8 draw
17 Rd8 draw
18 Re8 draw
19 Rf8 draw
20 Rg8 draw
21 Ra8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves