1r2k2r/p1p2ppp/np2N3/1b2P3/P5n1/2PP1Nq1/RP1KP1B1/2BQ3R b k - 0 19
FEN state: 1r2k2r/p1p2ppp/np2N3/1b2P3/P5n1/2PP1Nq1/RP1KP1B1/2BQ3R b k - 0 19 ; Best move: b5d3
The current state of the chess board is: Black rook at b8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at b6 and white knight at e6. Black bishop at b5 and white pawn at e5. White pawn at a4 and black knight at g4. White pawn at c3, white pawn at d3, white knight at f3 and black queen at g3. White rook at a2, white pawn at b2, white king at d2, white pawn at e2 and white bishop at g2. White bishop at c1, white queen at d1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 19. Black to move.