8
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2
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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 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rc8 win in 3 half-moves
3 Rd8 win in 3 half-moves
4 Kc1 draw
5 Kc2 draw
6 Kc3 draw
7 Kd1 draw
8 Kd3 draw
9 Ra8 draw
10 Rb2 draw
11 Rb4 draw
12 Rb5 draw
13 Rb6 draw
14 Rb7 draw
15 Re8 draw
16 Rf8 draw
17 Ke1 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Ke3 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves