1
[fen]
6k1/r1p2pp1/p2p2qp/1p1P4/3N4/2P2PbP/PP1Q2P1/4R1K1 w - - 0 1
[/fen]
2
[fen]
2r2r1k/5p2/pb1p2p1/1p1P1q2/8/5N2/PP1Q2PP/R3R2K w - - 0 1
[/fen]
3
[fen]
rn2k2r/pp2ppbp/6p1/q2pP3/8/2PB1N1P/P1P2PP1/R2QK2R b KQ - 0 1
[/fen]
4
[fen]
3r4/6kp/p4pp1/4n3/6P1/1B3P1P/PK3R2/8 b - - 0 1
[/fen]