r1bq1br1/4pB1p/p6k/1pppnppP/8/PPP4N/3PQPP1/RNB1K1R1 w Q - 0 15
FEN state: r1bq1br1/4pB1p/p6k/1pppnppP/8/PPP4N/3PQPP1/RNB1K1R1 w Q - 0 15 ; Best move: e2e5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at e7, white bishop at f7 and black pawn at h7. Black pawn at a6 and black king at h6. Black pawn at b5, black pawn at c5, black pawn at d5, black knight at e5, black pawn at f5, black pawn at g5 and white pawn at h5. White pawn at a3, white pawn at b3, white pawn at c3 and white knight at h3. White pawn at d2, white queen at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 15. White to move.