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 Rb1 draw
3 Rb2 draw
4 Rb3 draw
5 Rb5 draw
6 Rc6 draw
7 Rd6 draw
8 Re6 draw
9 Rh6 draw
10 K1e2 loss in 2 half-moves
11 K1f2 loss in 2 half-moves
12 K1g2 loss in 2 half-moves
13 K3e2 loss in 2 half-moves
14 K3f2 loss in 2 half-moves
15 K3g2 loss in 2 half-moves
16 Ke1 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Kg1 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Kg4 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rb8 loss in 2 half-moves
26 Rf6 loss in 2 half-moves
27 Rg6 loss in 2 half-moves