r2k1br1/Np2p1pp/1q2bp1n/p2pB3/P2p4/1Q1K2P1/1P2PP1P/3R1BNR b - - 3 18
FEN state: r2k1br1/Np2p1pp/1q2bp1n/p2pB3/P2p4/1Q1K2P1/1P2PP1P/3R1BNR b - - 3 18 ; Best move: b6b3
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8 and black rook at g8. White knight at a7, black pawn at b7, black pawn at e7, black pawn at g7 and black pawn at h7. Black queen at b6, black bishop at e6, black pawn at f6 and black knight at h6. Black pawn at a5, black pawn at d5 and white bishop at e5. White pawn at a4 and black pawn at d4. White queen at b3, white king at d3 and white pawn at g3. White pawn at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 18. Black to move.