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

EGTB: win in 2 half-moves

# move score
1 Rf8 win in 1 half-moves
2 Rc8 loss in 20 half-moves
3 Kb6 loss in 8 half-moves
4 Kc7 loss in 8 half-moves
5 Ra1 loss in 8 half-moves
6 Ra3 loss in 8 half-moves
7 Rd8 loss in 8 half-moves
8 Ka7 loss in 6 half-moves
9 Kb8 loss in 6 half-moves
10 Kc6 loss in 6 half-moves
11 Ra7 loss in 6 half-moves
12 Rb8 loss in 6 half-moves
13 Ka6 loss in 4 half-moves
14 Kc8 loss in 4 half-moves
15 Ra2 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves