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 Rg2 win in 3 half-moves
3 Ka1 draw
4 Ka2 draw
5 Kb2 draw
6 Kc1 draw
7 Kc2 draw
8 Rf4 draw
9 Rg3 draw
10 Rg5 draw
11 Rh4 draw
12 Ra4 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rg8 loss in 2 half-moves