r1b2bn1/ppnkp3/2p5/1N3ppr/1PP2P2/4KNp1/P2PP2P/R1B2B1R b - - 3 18
FEN state: r1b2bn1/ppnkp3/2p5/1N3ppr/1PP2P2/4KNp1/P2PP2P/R1B2B1R b - - 3 18 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black knight at c7, black king at d7 and black pawn at e7. Black pawn at c6. White knight at b5, black pawn at f5, black pawn at g5 and black rook at h5. White pawn at b4, white pawn at c4 and white pawn at f4. White king at e3, white knight at f3 and black pawn at g3. White pawn at a2, white pawn at d2, white pawn at e2 and white pawn at h2. White rook at a1, white bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 18. Black to move.