r3k1nr/p3p3/np2bb2/2Bp1pp1/P5Pp/3P4/R1PNPP1P/Q3KB1R b Kkq - 2 20
FEN state: r3k1nr/p3p3/np2bb2/2Bp1pp1/P5Pp/3P4/R1PNPP1P/Q3KB1R b Kkq - 2 20 ; Best move: f6a1
The current state of the chess board is: Black rook at a8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at e7. Black knight at a6, black pawn at b6, black bishop at e6 and black bishop at f6. White bishop at c5, black pawn at d5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at g4 and black pawn at h4. White pawn at d3. White rook at a2, white pawn at c2, white knight at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White queen at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 20. Black to move.