1rbq3r/p2pnk2/1bp1p2p/1p3p2/1QPPNPp1/2n1P1P1/1BB1N2P/R3K1R1 w Q - 6 18
FEN state: 1rbq3r/p2pnk2/1bp1p2p/1p3p2/1QPPNPp1/2n1P1P1/1BB1N2P/R3K1R1 w Q - 6 18 ; Best move: e4d6
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at a7, black pawn at d7, black knight at e7 and black king at f7. Black bishop at b6, black pawn at c6, black pawn at e6 and black pawn at h6. Black pawn at b5 and black pawn at f5. White queen at b4, white pawn at c4, white pawn at d4, white knight at e4, white pawn at f4 and black pawn at g4. Black knight at c3, white pawn at e3 and white pawn at g3. White bishop at b2, white bishop at c2, white knight at e2 and white pawn at h2. White rook at a1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 6. Full move number is 18. White to move.