1n1q1b1r/2k5/1r1p2pn/1p2pb1p/P2P1P2/4B1P1/P1P1P2P/1R1Q1KNR w - - 0 18
FEN state: 1n1q1b1r/2k5/1r1p2pn/1p2pb1p/P2P1P2/4B1P1/P1P1P2P/1R1Q1KNR w - - 0 18 ; Best move: d4e5
The current state of the chess board is: Black knight at b8, black queen at d8, black bishop at f8 and black rook at h8. Black king at c7. Black rook at b6, black pawn at d6, black pawn at g6 and black knight at h6. Black pawn at b5, black pawn at e5, black bishop at f5 and black pawn at h5. White pawn at a4, white pawn at d4 and white pawn at f4. White bishop at e3 and white pawn at g3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at h2. White rook at b1, white queen at d1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.