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