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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ra2 draw
3 Rc2 draw
4 Rd2 draw
5 Re6 draw
6 Re7 draw
7 Re8 draw
8 Rh2 draw
9 K1b2 loss in 2 half-moves
10 K1c2 loss in 2 half-moves
11 K1d2 loss in 2 half-moves
12 K3b2 loss in 2 half-moves
13 K3c2 loss in 2 half-moves
14 K3d2 loss in 2 half-moves
15 Kb1 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kd1 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Re1 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Re4 loss in 2 half-moves
25 Re5 loss in 2 half-moves
26 Rf2 loss in 2 half-moves
27 Rg2 loss in 2 half-moves