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

EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Rf2 draw
7 Rf3 draw
8 Rf4 draw
9 Rf5 draw
10 Rf6 draw
11 K2b3 loss in 2 half-moves
12 K2c3 loss in 2 half-moves
13 K2d3 loss in 2 half-moves
14 K4b3 loss in 2 half-moves
15 K4c3 loss in 2 half-moves
16 K4d3 loss in 2 half-moves
17 Kb1 loss in 2 half-moves
18 Kb2 loss in 2 half-moves
19 Kb4 loss in 2 half-moves
20 Kb5 loss in 2 half-moves
21 Kc1 loss in 2 half-moves
22 Kc5 loss in 2 half-moves
23 Kd1 loss in 2 half-moves
24 Kd2 loss in 2 half-moves
25 Kd4 loss in 2 half-moves
26 Kd5 loss in 2 half-moves
27 Re7 loss in 2 half-moves
28 Rf8 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh7 loss in 2 half-moves