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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Rh4 win in 1 half-moves
3 Kb6 draw
4 Kc6 draw
5 Kd6 draw
6 Kg1 draw
7 Kg2 draw
8 Kh2 draw
9 Rb4 draw
10 Rc1 draw
11 Rc2 draw
12 Rc3 draw
13 Rd4 draw
14 Re4 draw
15 Rf4 draw
16 Kb4 loss in 1 half-moves
17 Kb5 loss in 1 half-moves
18 Kd4 loss in 1 half-moves
19 Kd5 loss in 1 half-moves
20 Ra4 loss in 1 half-moves