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 Rf4 win in 1 half-moves
3 K2b2 loss in 2 half-moves
4 K2b3 loss in 2 half-moves
5 K3b2 loss in 2 half-moves
6 K3b3 loss in 2 half-moves
7 Ka1 loss in 2 half-moves
8 Ka4 loss in 2 half-moves
9 Kb1 loss in 2 half-moves
10 Ra4 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves