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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 Kb3 draw
3 K4a5 loss in 2 half-moves
4 K6a5 loss in 2 half-moves
5 Ka3 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Kb7 loss in 2 half-moves
8 Ra8 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rc7 loss in 2 half-moves
11 Rd7 loss in 2 half-moves
12 Re7 loss in 2 half-moves
13 Rf7 loss in 2 half-moves
14 Rg7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves
16 K4b5 loss in 1 half-moves
17 K6b5 loss in 1 half-moves