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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kb4 win in 5 half-moves
3 Kb7 win in 5 half-moves
4 Ra7 win in 5 half-moves
5 K5b5 win in 7 half-moves
6 K5b6 win in 7 half-moves
7 Rh7 win in 7 half-moves
8 Kc4 win in 9 half-moves
9 Kd7 win in 9 half-moves
10 K6b5 draw
11 K6b6 draw
12 Rc8 draw
13 K5d5 loss in 2 half-moves
14 K5d6 loss in 2 half-moves
15 K6d5 loss in 2 half-moves
16 K6d6 loss in 2 half-moves
17 Kd4 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