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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb4 draw
3 Rb5 draw
4 Rb6 draw
5 Rd7 draw
6 Re7 draw
7 Rf7 draw
8 Rg7 draw
9 Kaa1 loss in 2 half-moves
10 Kaa3 loss in 2 half-moves
11 Kab1 loss in 2 half-moves
12 Kab3 loss in 2 half-moves
13 Kba1 loss in 2 half-moves
14 Kba3 loss in 2 half-moves
15 Kbb1 loss in 2 half-moves
16 Kbb3 loss in 2 half-moves
17 Kc1 loss in 2 half-moves
18 Kc2 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves
22 Rc7 loss in 2 half-moves
23 Rh7 loss in 2 half-moves