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

EGTB: win in 2 half-moves

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