r1bqkbr1/3n1p2/2pppn1p/pp6/1PP1P1p1/PQ3PPP/3PB3/RNBK2NR b q - 1 13
FEN state: r1bqkbr1/3n1p2/2pppn1p/pp6/1PP1P1p1/PQ3PPP/3PB3/RNBK2NR b q - 1 13 ; Best move: g4f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black knight at d7 and black pawn at f7. Black pawn at c6, black pawn at d6, black pawn at e6, black knight at f6 and black pawn at h6. Black pawn at a5 and black pawn at b5. White pawn at b4, white pawn at c4, white pawn at e4 and black pawn at g4. White pawn at a3, white queen at b3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at d2 and white bishop at e2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 13. Black to move.