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 K6b7 draw
3 Rb4 draw
4 Rd1 draw
5 Re1 draw
6 Rf1 draw
7 Rh1 draw
8 Ka5 loss in 2 half-moves
9 Ka6 loss in 2 half-moves
10 Ka8 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 K6a7 loss in 1 half-moves
21 K6c7 loss in 1 half-moves
22 K8a7 loss in 1 half-moves
23 K8b7 loss in 1 half-moves
24 K8c7 loss in 1 half-moves