r1bqk1r1/ppp1pp2/3p3b/6pp/1Nn4Q/1P1PPP2/1P2K1PP/R1B2BNR w q - 2 13
FEN state: r1bqk1r1/ppp1pp2/3p3b/6pp/1Nn4Q/1P1PPP2/1P2K1PP/R1B2BNR w q - 2 13 ; Best move: h4c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7 and black pawn at f7. Black pawn at d6 and black bishop at h6. Black pawn at g5 and black pawn at h5. White knight at b4, black knight at c4 and white queen at h4. White pawn at b3, white pawn at d3, white pawn at e3 and white pawn at f3. White pawn at b2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white bishop at f1, 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 13. White to move.