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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Rb6 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Rb8 draw
6 Rc1 draw
7 Rd1 draw
8 Re1 draw
9 Rf1 draw
10 K5g5 loss in 2 half-moves
11 K5g6 loss in 2 half-moves
12 K6g5 loss in 2 half-moves
13 K6g6 loss in 2 half-moves
14 Kg4 loss in 2 half-moves
15 Kg7 loss in 2 half-moves
16 Kh4 loss in 2 half-moves
17 Kh7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves