rnbq2r1/3N1p2/p2k2pp/P1p5/1pn2p1P/1PNP4/2PBP1P1/2RQKB1R b K - 0 18
FEN state: rnbq2r1/3N1p2/p2k2pp/P1p5/1pn2p1P/1PNP4/2PBP1P1/2RQKB1R b K - 0 18 ; Best move: c4d2
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black rook at g8. White knight at d7 and black pawn at f7. Black pawn at a6, black king at d6, black pawn at g6 and black pawn at h6. White pawn at a5 and black pawn at c5. Black pawn at b4, black knight at c4, black pawn at f4 and white pawn at h4. White pawn at b3, white knight at c3 and white pawn at d3. White pawn at c2, white bishop at d2, white pawn at e2 and white pawn at g2. White rook at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.