1n3br1/2pk1p1p/1r1N2p1/P2b4/p3q1nP/4P2R/2PP1PP1/R1BQKB2 w Q - 1 18
FEN state: 1n3br1/2pk1p1p/1r1N2p1/P2b4/p3q1nP/4P2R/2PP1PP1/R1BQKB2 w Q - 1 18 ; Best move: d6e4
The current state of the chess board is: Black knight at b8, black bishop at f8 and black rook at g8. Black pawn at c7, black king at d7, black pawn at f7 and black pawn at h7. Black rook at b6, white knight at d6 and black pawn at g6. White pawn at a5 and black bishop at d5. Black pawn at a4, black queen at e4, black knight at g4 and white pawn at h4. White pawn at e3 and white rook at h3. White pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 1. Full move number is 18. White to move.