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 Rb7 draw
3 K1c2 loss in 2 half-moves
4 K1d2 loss in 2 half-moves
5 K1e2 loss in 2 half-moves
6 K3c2 loss in 2 half-moves
7 K3d2 loss in 2 half-moves
8 K3e2 loss in 2 half-moves
9 Kc1 loss in 2 half-moves
10 Kc3 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Ke1 loss in 2 half-moves
14 Ke3 loss in 2 half-moves
15 Ke4 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb8 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rd4 loss in 2 half-moves
25 Re4 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves