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

EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Kf2 win in 5 half-moves
3 Rf8 win in 5 half-moves
4 Kf3 win in 7 half-moves
5 Kb1 draw
6 Kb2 draw
7 Kb3 draw
8 Kc1 draw
9 Kc3 draw
10 Kcd2 draw
11 Kcd3 draw
12 Kd1 draw
13 Ke2 draw
14 Ked2 draw
15 Ked3 draw
16 Ra8 draw
17 Rg2 draw
18 Rg3 draw
19 Rh8 draw
20 Kd4 loss in 2 half-moves
21 Ke4 loss in 2 half-moves
22 Kf4 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves
26 Re8 loss in 2 half-moves
27 Rg4 loss in 2 half-moves
28 Rg5 loss in 2 half-moves
29 Rg6 loss in 2 half-moves
30 Rg7 loss in 2 half-moves