r1b1kb1r/1p2P2p/n4qn1/p1ppP3/2P3P1/1P1P4/P2BN1BP/RN1Q2KR b kq - 5 20
FEN state: r1b1kb1r/1p2P2p/n4qn1/p1ppP3/2P3P1/1P1P4/P2BN1BP/RN1Q2KR b kq - 5 20 ; Best move: f6e7
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, white pawn at e7 and black pawn at h7. Black knight at a6, black queen at f6 and black knight at g6. Black pawn at a5, black pawn at c5, black pawn at d5 and white pawn at e5. White pawn at c4 and white pawn at g4. White pawn at b3 and white pawn at d3. White pawn at a2, white bishop at d2, white knight at e2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 5. Full move number is 20. Black to move.