1rbk2nr/1p1pp2p/2p3p1/p3P3/Pn4p1/1PP1b1NP/3P2R1/R1BQKB1N b Q - 8 21
FEN state: 1rbk2nr/1p1pp2p/2p3p1/p3P3/Pn4p1/1PP1b1NP/3P2R1/R1BQKB1N b Q - 8 21 ; Best move: g4h3
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at d7, black pawn at e7 and black pawn at h7. Black pawn at c6 and black pawn at g6. Black pawn at a5 and white pawn at e5. White pawn at a4, black knight at b4 and black pawn at g4. White pawn at b3, white pawn at c3, black bishop at e3, white knight at g3 and white pawn at h3. White pawn at d2 and white rook at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white knight at h1. White queenside is the only castle move available. Half move number is 8. Full move number is 21. Black to move.