1n1q1rk1/1ppb1pbp/3pr1p1/p3pn2/7P/P2P1NP1/1PPBP3/RN1QKB1R w Q - 4 15
FEN state: 1n1q1rk1/1ppb1pbp/3pr1p1/p3pn2/7P/P2P1NP1/1PPBP3/RN1QKB1R w Q - 4 15 ; Best move: e1f2
The current state of the chess board is: Black knight at b8, black queen at d8, black rook at f8 and black king at g8. Black pawn at b7, black pawn at c7, black bishop at d7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at d6, black rook at e6 and black pawn at g6. Black pawn at a5, black pawn at e5 and black knight at f5. White pawn at h4. White pawn at a3, white pawn at d3, white knight at f3 and white pawn at g3. White pawn at b2, white pawn at c2, white bishop at d2 and white pawn at e2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 4. Full move number is 15. White to move.