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 Rb2 draw
3 Rb3 draw
4 Rb8 draw
5 Re4 draw
6 Ka1 loss in 2 half-moves
7 Ka2 loss in 2 half-moves
8 Kb2 loss in 2 half-moves
9 Kc1 loss in 2 half-moves
10 Kc2 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 1 half-moves
16 Rf4 loss in 1 half-moves
17 Rg4 loss in 1 half-moves
18 Rh4 loss in 1 half-moves