rnbqk2r/3p1p2/7n/1p1P1pNp/pQp4P/b1P3K1/PP2P1P1/RNB2BR1 w q - 2 15
FEN state: rnbqk2r/3p1p2/7n/1p1P1pNp/pQp4P/b1P3K1/PP2P1P1/RNB2BR1 w q - 2 15 ; Best move: b1a3
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 and black rook at h8. Black pawn at d7 and black pawn at f7. Black knight at h6. Black pawn at b5, white pawn at d5, black pawn at f5, white knight at g5 and black pawn at h5. Black pawn at a4, white queen at b4, black pawn at c4 and white pawn at h4. Black bishop at a3, white pawn at c3 and white king at g3. White pawn at a2, white pawn at b2, white pawn at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 15. White to move.