r3kr2/3ppp1p/b1n3p1/pp1Q1P2/P1pP2B1/1PP1b2P/6K1/RNB3NR w q - 2 23
FEN state: r3kr2/3ppp1p/b1n3p1/pp1Q1P2/P1pP2B1/1PP1b2P/6K1/RNB3NR w q - 2 23 ; Best move: c1e3
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at f8. Black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black bishop at a6, black knight at c6 and black pawn at g6. Black pawn at a5, black pawn at b5, white queen at d5 and white pawn at f5. White pawn at a4, black pawn at c4, white pawn at d4 and white bishop at g4. White pawn at b3, white pawn at c3, black bishop at e3 and white pawn at h3. White king at g2. White rook at a1, white knight at b1, white bishop at c1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 23. White to move.