2b2rk1/1ppn2b1/1q4pp/r2ppp2/p1PQN1nP/1N1PP2R/P4PP1/R1B1KB2 w Q - 2 18
FEN state: 2b2rk1/1ppn2b1/1q4pp/r2ppp2/p1PQN1nP/1N1PP2R/P4PP1/R1B1KB2 w Q - 2 18 ; Best move: d4b6
The current state of the chess board is: Black bishop at c8, black rook at f8 and black king at g8. Black pawn at b7, black pawn at c7, black knight at d7 and black bishop at g7. Black queen at b6, black pawn at g6 and black pawn at h6. Black rook at a5, black pawn at d5, black pawn at e5 and black pawn at f5. Black pawn at a4, white pawn at c4, white queen at d4, white knight at e4, black knight at g4 and white pawn at h4. White knight at b3, white pawn at d3, white pawn at e3 and white rook at h3. White pawn at a2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 18. White to move.