rn1qk2r/pbp1ppbp/3p4/1p4p1/2NP3n/2P1PP2/PP2B1PP/1RBQK1NR b Kkq - 0 10
FEN state: rn1qk2r/pbp1ppbp/3p4/1p4p1/2NP3n/2P1PP2/PP2B1PP/1RBQK1NR b Kkq - 0 10 ; Best move: b5c4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at d6. Black pawn at b5 and black pawn at g5. White knight at c4, white pawn at d4 and black knight at h4. White pawn at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white pawn at b2, white bishop at e2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.