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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kcb3 draw
3 Kcb4 draw
4 Rg1 draw
5 Ka3 loss in 2 half-moves
6 Ka5 loss in 2 half-moves
7 Kab3 loss in 2 half-moves
8 Kab4 loss in 2 half-moves
9 Kb5 loss in 2 half-moves
10 Kc2 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh8 loss in 2 half-moves
26 Kd3 loss in 1 half-moves
27 Kd4 loss in 1 half-moves