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 K7b6 win in 7 half-moves
3 Kb5 win in 7 half-moves
4 Kb8 win in 7 half-moves
5 Rd8 win in 7 half-moves
6 K6b6 draw
7 K6b7 draw
8 K7b7 draw
9 Ka5 draw
10 Ka8 draw
11 Rc7 draw
12 Rd1 draw
13 Rd6 draw
14 Re7 draw
15 Rd2 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh7 loss in 2 half-moves