rnb1k1nr/2ppq1bp/5p2/pp3N2/1P2p3/P1N1P1Pp/1RPP1P2/2BQKB1R b k - 1 18
FEN state: rnb1k1nr/2ppq1bp/5p2/pp3N2/1P2p3/P1N1P1Pp/1RPP1P2/2BQKB1R b k - 1 18 ; Best move: e7f7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at d7, black queen at e7, black bishop at g7 and black pawn at h7. Black pawn at f6. Black pawn at a5, black pawn at b5 and white knight at f5. White pawn at b4 and black pawn at e4. White pawn at a3, white knight at c3, white pawn at e3, white pawn at g3 and black pawn at h3. White rook at b2, white pawn at c2, white pawn at d2 and white pawn at f2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.