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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb5 draw
5 Kb7 draw
6 Rb5 draw
7 Rb6 draw
8 Rb7 draw
9 Kb6 loss in 4 half-moves
10 Ra4 loss in 4 half-moves
11 Rf4 loss in 4 half-moves
12 Rg4 loss in 4 half-moves
13 Rb1 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rh4 loss in 1 half-moves