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

EGTB: win in 6 half-moves

# move score
1 Rb1 win in 5 half-moves
2 Ra1 draw
3 Rc1 draw
4 Rd5 draw
5 Rd6 draw
6 Rd7 draw
7 Rd8 draw
8 Rg1 draw
9 Rh1 draw
10 K4b4 loss in 2 half-moves
11 K4b5 loss in 2 half-moves
12 K5b4 loss in 2 half-moves
13 K5b5 loss in 2 half-moves
14 Ka3 loss in 2 half-moves
15 Ka6 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kb6 loss in 2 half-moves
18 Rd2 loss in 2 half-moves
19 Rd3 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves