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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb4 draw
3 Rc1 draw
4 Rd1 draw
5 Re1 draw
6 Rf1 draw
7 Ka5 loss in 2 half-moves
8 Ka6 loss in 2 half-moves
9 Ka7 loss in 2 half-moves
10 Kbb5 loss in 2 half-moves
11 Kbb7 loss in 2 half-moves
12 Kbc5 loss in 2 half-moves
13 Kbc7 loss in 2 half-moves
14 Kcb5 loss in 2 half-moves
15 Kcb7 loss in 2 half-moves
16 Kcc5 loss in 2 half-moves
17 Kcc7 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Kd7 loss in 2 half-moves
21 Ra1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves