rnb1kbr1/1ppp1p1p/p5p1/4p3/1P2nq2/2P2PPP/P1QPP3/RNB1KBNR b KQq - 0 10
FEN state: rnb1kbr1/1ppp1p1p/p5p1/4p3/1P2nq2/2P2PPP/P1QPP3/RNB1KBNR b KQq - 0 10 ; Best move: f4g3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at a6 and black pawn at g6. Black pawn at e5. White pawn at b4, black knight at e4 and black queen at f4. White pawn at c3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white queen at c2, white pawn at d2 and white pawn at e2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.