rq3b1r/p1ppNkBp/1pQ5/5p2/4n1p1/N5P1/bPP1PP1P/2R1KB1R w K - 4 18
FEN state: rq3b1r/p1ppNkBp/1pQ5/5p2/4n1p1/N5P1/bPP1PP1P/2R1KB1R w K - 4 18 ; Best move: c6a4
The current state of the chess board is: Black rook at a8, black queen at b8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, white knight at e7, black king at f7, white bishop at g7 and black pawn at h7. Black pawn at b6 and white queen at c6. Black pawn at f5. Black knight at e4 and black pawn at g4. White knight at a3 and white pawn at g3. Black bishop at a2, white pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at c1, 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 4. Full move number is 18. White to move.