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1
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Click on the third or sixth rank to set the en passant target square.

EGTB: win in 36 half-moves

# move score
1 Ra8 win in 35 half-moves
2 Ra1 draw
3 Ra2 draw
4 Rd7 draw
5 Rg7 draw
6 Rh7 draw
7 Kb7 loss in 8 half-moves
8 Kc7 loss in 6 half-moves
9 Ka8 loss in 2 half-moves
10 Kc8 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves