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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kb4 draw
3 Kb5 draw
4 Kb6 draw
5 Kc4 draw
6 Kc6 draw
7 Kd4 draw
8 Kd5 draw
9 Kd6 draw
10 Ra4 draw
11 Rb4 draw
12 Rc4 draw
13 Rd4 draw
14 Re3 draw
15 Re5 draw
16 Re6 draw
17 Re7 draw
18 Re8 draw
19 Re1 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves