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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ka4 draw
3 Ka7 draw
4 Kb7 draw
5 Ra2 draw
6 Rc1 draw
7 Rc3 draw
8 Rc8 draw
9 Rg2 draw
10 Rh2 draw
11 K5b5 loss in 2 half-moves
12 K5b6 loss in 2 half-moves
13 K6b5 loss in 2 half-moves
14 K6b6 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rd2 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf2 loss in 2 half-moves