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

EGTB: win in 2 half-moves

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