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

EGTB: win in 8 half-moves

# move score
1 Kb5 win in 7 half-moves
2 R1a3 win in 7 half-moves
3 Kb4 draw
4 R1a2 draw
5 R4a2 draw
6 R4a3 draw
7 Re1 draw
8 Re4 draw
9 Ka6 loss in 2 half-moves
10 Kb6 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd1 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Rh4 loss in 2 half-moves