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

EGTB: win in 6 half-moves

# move score
1 Rb7 win in 5 half-moves
2 Rb1 draw
3 Rb5 draw
4 Rb6 draw
5 Rd4 draw
6 Rg4 draw
7 Rh4 draw
8 Kaa7 loss in 2 half-moves
9 Kab7 loss in 2 half-moves
10 Kba7 loss in 2 half-moves
11 Kbb7 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kc8 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves