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

EGTB: win in 4 half-moves

# move score
1 K6b5 win in 3 half-moves
2 K4b5 draw
3 K6c5 draw
4 K6d5 draw
5 Kb6 draw
6 Kb7 draw
7 Kc7 draw
8 Kd4 draw
9 Kd6 draw
10 Kd7 draw
11 Rd4 draw
12 Re4 draw
13 Rf4 draw
14 Rg6 draw
15 Rh4 draw
16 K4c5 loss in 2 half-moves
17 K4d5 loss in 2 half-moves
18 Kb3 loss in 2 half-moves
19 Kb4 loss in 2 half-moves
20 Kc3 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Rg1 loss in 2 half-moves
23 Rg2 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves