rnbq1bnr/p2k2p1/3p3B/1Np1pP2/2PP4/1Q5p/PP2BPP1/1R1K3R w - - 4 18
FEN state: rnbq1bnr/p2k2p1/3p3B/1Np1pP2/2PP4/1Q5p/PP2BPP1/1R1K3R w - - 4 18 ; Best move: d4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black king at d7 and black pawn at g7. Black pawn at d6 and white bishop at h6. White knight at b5, black pawn at c5, black pawn at e5 and white pawn at f5. White pawn at c4 and white pawn at d4. White queen at b3 and black pawn at h3. White pawn at a2, white pawn at b2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at b1, white king at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 18. White to move.