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 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Kc1 draw
6 Kc2 draw
7 Kg1 draw
8 Kg2 draw
9 Kh2 draw
10 Ra4 draw
11 Rb2 draw
12 Rb3 draw
13 Rc4 draw
14 Rd4 draw
15 Re4 draw
16 Rf4 draw
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves