r1b1k2r/2p4p/ppn1pn2/3N1p1P/P1QqP3/1PP3p1/3P2P1/RNB1KBR1 w Qkq - 0 18
FEN state: r1b1k2r/2p4p/ppn1pn2/3N1p1P/P1QqP3/1PP3p1/3P2P1/RNB1KBR1 w Qkq - 0 18 ; Best move: c3d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at c7 and black pawn at h7. Black pawn at a6, black pawn at b6, black knight at c6, black pawn at e6 and black knight at f6. White knight at d5, black pawn at f5 and white pawn at h5. White pawn at a4, white queen at c4, black queen at d4 and white pawn at e4. White pawn at b3, white pawn at c3 and black pawn at g3. White pawn at d2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 18. White to move.