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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 K3a4 draw
3 K5a4 draw
4 Ka2 draw
5 Ka6 draw
6 Kb2 draw
7 Kb6 draw
8 Ra8 draw
9 Rc1 draw
10 Rc6 draw
11 Rc7 draw
12 Rg8 draw
13 Rh8 draw
14 K3b4 loss in 2 half-moves
15 K5b4 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves