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

EGTB: win in 6 half-moves

# move score
1 Rb8 win in 5 half-moves
2 K3b3 draw
3 K3b4 draw
4 K4b3 draw
5 K4b4 draw
6 Kb2 draw
7 Kb5 draw
8 Kc2 draw
9 Kc5 draw
10 Kd2 draw
11 Ra8 draw
12 Rc7 draw
13 Rh8 draw
14 K3d3 loss in 2 half-moves
15 K3d4 loss in 2 half-moves
16 K4d3 loss in 2 half-moves
17 K4d4 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves