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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb5 draw
3 Rc6 draw
4 Rd6 draw
5 Re6 draw
6 Rg6 draw
7 Ka2 loss in 2 half-moves
8 Ka3 loss in 2 half-moves
9 Ka4 loss in 2 half-moves
10 Kb1 loss in 2 half-moves
11 Kb4 loss in 2 half-moves
12 Kbb2 loss in 2 half-moves
13 Kbc3 loss in 2 half-moves
14 Kc1 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kcb2 loss in 2 half-moves
17 Kcc3 loss in 2 half-moves
18 Kd1 loss in 2 half-moves
19 Kd2 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rf6 loss in 2 half-moves
25 Rh6 loss in 2 half-moves