4kbn1/rp1bp2r/2p1n2p/pR1P2p1/P5pP/3PK2R/1PP1QPB1/2B3N1 b - - 2 18
FEN state: 4kbn1/rp1bp2r/2p1n2p/pR1P2p1/P5pP/3PK2R/1PP1QPB1/2B3N1 b - - 2 18 ; Best move: e6f4
The current state of the chess board is: Black king at e8, black bishop at f8 and black knight at g8. Black rook at a7, black pawn at b7, black bishop at d7, black pawn at e7 and black rook at h7. Black pawn at c6, black knight at e6 and black pawn at h6. Black pawn at a5, white rook at b5, white pawn at d5 and black pawn at g5. White pawn at a4, black pawn at g4 and white pawn at h4. White pawn at d3, white king at e3 and white rook at h3. White pawn at b2, white pawn at c2, white queen at e2, white pawn at f2 and white bishop at g2. White bishop at c1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 18. Black to move.