rnnq3b/p1ppkr2/b4p2/5Q2/1pPP1Npp/PP3PPP/1B2P2R/R3KBN1 w Q - 12 21
FEN state: rnnq3b/p1ppkr2/b4p2/5Q2/1pPP1Npp/PP3PPP/1B2P2R/R3KBN1 w Q - 12 21 ; Best move: h3g4
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at c8, black queen at d8 and black bishop at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black king at e7 and black rook at f7. Black bishop at a6 and black pawn at f6. White queen at f5. Black pawn at b4, white pawn at c4, white pawn at d4, white knight at f4, black pawn at g4 and black pawn at h4. White pawn at a3, white pawn at b3, white pawn at f3, white pawn at g3 and white pawn at h3. White bishop at b2, white pawn at e2 and white rook at h2. White rook at a1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 12. Full move number is 21. White to move.