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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ra5 loss in 16 half-moves
3 Rc5 loss in 16 half-moves
4 Kc1 loss in 14 half-moves
5 Ka1 loss in 12 half-moves
6 Ka2 loss in 12 half-moves
7 Kc2 loss in 12 half-moves
8 Kb1 loss in 10 half-moves
9 Ka3 loss in 8 half-moves
10 Rb3 loss in 8 half-moves
11 Kb3 loss in 4 half-moves
12 Kc3 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rb8 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rg5 loss in 1 half-moves
20 Rh5 loss in 1 half-moves