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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Ka4 draw
3 Ka5 draw
4 Kb6 draw
5 Kc4 draw
6 Kh7 draw
7 Ra4 draw
8 Rb1 draw
9 Rb2 draw
10 Rc4 draw
11 Rh4 draw
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kg7 loss in 2 half-moves
15 Kg8 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Ka6 loss in 1 half-moves