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 K3b2 draw
3 Rb8 draw
4 Rd7 draw
5 Re7 draw
6 Rf7 draw
7 Rh7 draw
8 Ka1 loss in 2 half-moves
9 Ka3 loss in 2 half-moves
10 Ka4 loss in 2 half-moves
11 Kb4 loss in 2 half-moves
12 Kc1 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 K1a2 loss in 1 half-moves
21 K1b2 loss in 1 half-moves
22 K1c2 loss in 1 half-moves
23 K3a2 loss in 1 half-moves
24 K3c2 loss in 1 half-moves