4kbr1/r3ppB1/p1np4/qp3P1p/1P5P/3P3N/b1P1P1Pn/1R1QKB1R b - - 0 18
FEN state: 4kbr1/r3ppB1/p1np4/qp3P1p/1P5P/3P3N/b1P1P1Pn/1R1QKB1R b - - 0 18 ; Best move: c6b4
The current state of the chess board is: Black king at e8, black bishop at f8 and black rook at g8. Black rook at a7, black pawn at e7, black pawn at f7 and white bishop at g7. Black pawn at a6, black knight at c6 and black pawn at d6. Black queen at a5, black pawn at b5, white pawn at f5 and black pawn at h5. White pawn at b4 and white pawn at h4. White pawn at d3 and white knight at h3. Black bishop at a2, white pawn at c2, white pawn at e2, white pawn at g2 and black knight at h2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.