r1b1k2r/n5pp/2p4n/pp2Pp1q/3Pp3/6P1/PbP1PK1P/RN1Q2NR b kq - 1 20
FEN state: r1b1k2r/n5pp/2p4n/pp2Pp1q/3Pp3/6P1/PbP1PK1P/RN1Q2NR b kq - 1 20 ; Best move: b2a1
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black knight at a7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black knight at h6. Black pawn at a5, black pawn at b5, white pawn at e5, black pawn at f5 and black queen at h5. White pawn at d4 and black pawn at e4. White pawn at g3. White pawn at a2, black bishop at b2, white pawn at c2, white pawn at e2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 20. Black to move.