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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Ka5 draw
6 Ka7 draw
7 Kb1 draw
8 Kb3 draw
9 Kb5 draw
10 Kb6 draw
11 Kb7 draw
12 Kc1 draw
13 Kc2 draw
14 Kc3 draw
15 Ra4 draw
16 Rb8 draw
17 Rc4 draw
18 Rd4 draw
19 Re4 draw
20 Rg4 draw
21 Rh4 draw
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rf4 loss in 2 half-moves