2r1kb2/pb1p2pr/n1p1pn1p/qp4p1/6Q1/2PP3P/PP1N1P1N/R1B1KB1R w KQ - 4 15
FEN state: 2r1kb2/pb1p2pr/n1p1pn1p/qp4p1/6Q1/2PP3P/PP1N1P1N/R1B1KB1R w KQ - 4 15 ; Best move: g4f3
The current state of the chess board is: Black rook at c8, black king at e8 and black bishop at f8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at g7 and black rook at h7. Black knight at a6, black pawn at c6, black pawn at e6, black knight at f6 and black pawn at h6. Black queen at a5, black pawn at b5 and black pawn at g5. White queen at g4. White pawn at c3, white pawn at d3 and white pawn at h3. White pawn at a2, white pawn at b2, white knight at d2, white pawn at f2 and white knight at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 15. White to move.