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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ra7 draw
3 Rb5 draw
4 Rb6 draw
5 Rh7 draw
6 Ka3 loss in 2 half-moves
7 Kaa2 loss in 2 half-moves
8 Kab1 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Kba2 loss in 2 half-moves
11 Kbb1 loss in 2 half-moves
12 Kc1 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves