r5nr/1p1qbkpp/1P1p1p2/p1pnp3/P4Pb1/N1P2N1P/1R1PP1P1/2BQKB1R b K - 6 13
FEN state: r5nr/1p1qbkpp/1P1p1p2/p1pnp3/P4Pb1/N1P2N1P/1R1PP1P1/2BQKB1R b K - 6 13 ; Best move: g4f3
The current state of the chess board is: Black rook at a8, black knight at g8 and black rook at h8. Black pawn at b7, black queen at d7, black bishop at e7, black king at f7, black pawn at g7 and black pawn at h7. White pawn at b6, black pawn at d6 and black pawn at f6. Black pawn at a5, black pawn at c5, black knight at d5 and black pawn at e5. White pawn at a4, white pawn at f4 and black bishop at g4. White knight at a3, white pawn at c3, white knight at f3 and white pawn at h3. White rook at b2, white pawn at d2, white pawn at e2 and white pawn at g2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 6. Full move number is 13. Black to move.