rnbqkbr1/pppp1p1p/7n/4p1Q1/5P2/4P1Pp/R1PP3N/1N2KB1R w q - 4 15
FEN state: rnbqkbr1/pppp1p1p/7n/4p1Q1/5P2/4P1Pp/R1PP3N/1N2KB1R w q - 4 15 ; Best move: g5e5
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, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black knight at h6. Black pawn at e5 and white queen at g5. White pawn at f4. White pawn at e3, white pawn at g3 and black pawn at h3. White rook at a2, white pawn at c2, white pawn at d2 and white knight at h2. White knight at b1, white king at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 4. Full move number is 15. White to move.