1Nbqkb1r/4p2p/p2p2p1/5pN1/Ppp2PPP/2P1K3/1P1PPQB1/R1B3R1 b k - 1 23
FEN state: 1Nbqkb1r/4p2p/p2p2p1/5pN1/Ppp2PPP/2P1K3/1P1PPQB1/R1B3R1 b k - 1 23 ; Best move: d8b6
The current state of the chess board is: White knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at e7 and black pawn at h7. Black pawn at a6, black pawn at d6 and black pawn at g6. Black pawn at f5 and white knight at g5. White pawn at a4, black pawn at b4, black pawn at c4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at c3 and white king at e3. White pawn at b2, white pawn at d2, white pawn at e2, white queen at f2 and white bishop at g2. White rook at a1, white bishop at c1 and white rook at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 23. Black to move.