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 Ra1 draw
3 Rd2 draw
4 Rd3 draw
5 Rd4 draw
6 Rd7 draw
7 Re1 draw
8 Rf1 draw
9 Kg1 loss in 2 half-moves
10 Kg2 loss in 2 half-moves
11 Kg4 loss in 2 half-moves
12 Kg5 loss in 2 half-moves
13 Kg6 loss in 2 half-moves
14 Kh2 loss in 2 half-moves
15 Kh4 loss in 2 half-moves
16 Kh6 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rd5 loss in 2 half-moves
20 Rd6 loss in 2 half-moves
21 Rd8 loss in 2 half-moves