3rk2r/1b1np1bp/ppp5/3p2n1/1PPP2P1/2N1Pp2/P4KBP/RQ5R w k - 1 21
FEN state: 3rk2r/1b1np1bp/ppp5/3p2n1/1PPP2P1/2N1Pp2/P4KBP/RQ5R w k - 1 21 ; Best move: g2f1
The current state of the chess board is: Black rook at d8, black king at e8 and black rook at h8. Black bishop at b7, black knight at d7, black pawn at e7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black pawn at c6. Black pawn at d5 and black knight at g5. White pawn at b4, white pawn at c4, white pawn at d4 and white pawn at g4. White knight at c3, white pawn at e3 and black pawn at f3. White pawn at a2, white king at f2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at b1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 21. White to move.