r3kn2/6b1/p1p3pn/Pp2p2r/1Pp2pbP/8/R1PPNP1K/2B2B1R w q - 0 21
FEN state: r3kn2/6b1/p1p3pn/Pp2p2r/1Pp2pbP/8/R1PPNP1K/2B2B1R w q - 0 21 ; Best move: h2g1
The current state of the chess board is: Black rook at a8, black king at e8 and black knight at f8. Black bishop at g7. Black pawn at a6, black pawn at c6, black pawn at g6 and black knight at h6. White pawn at a5, black pawn at b5, black pawn at e5 and black rook at h5. White pawn at b4, black pawn at c4, black pawn at f4, black bishop at g4 and white pawn at h4. White rook at a2, white pawn at c2, white pawn at d2, white knight at e2, white pawn at f2 and white king at h2. White bishop at c1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 21. White to move.