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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rb5 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Rd4 draw
7 Re4 draw
8 Rf4 draw
9 Ka4 loss in 2 half-moves
10 Ka6 loss in 2 half-moves
11 Ka7 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kb8 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves