rnbqkbr1/p1p3pN/1p1pp2n/5p2/P3P1Bp/2P5/1P1PQPPP/RNB1KR2 b Q - 3 13
FEN state: rnbqkbr1/p1p3pN/1p1pp2n/5p2/P3P1Bp/2P5/1P1PQPPP/RNB1KR2 b Q - 3 13 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at g7 and white knight at h7. Black pawn at b6, black pawn at d6, black pawn at e6 and black knight at h6. Black pawn at f5. White pawn at a4, white pawn at e4, white bishop at g4 and black pawn at h4. White pawn at c3. White pawn at b2, white pawn at d2, white queen at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 3. Full move number is 13. Black to move.