r1b1kbr1/1pp1pppp/n2q1n2/P7/1P2pP2/N6P/R2PN1P1/2BQKB1R w K - 0 13
FEN state: r1b1kbr1/1pp1pppp/n2q1n2/P7/1P2pP2/N6P/R2PN1P1/2BQKB1R w K - 0 13 ; Best move: a3c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at b7, black pawn at c7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black queen at d6 and black knight at f6. White pawn at a5. White pawn at b4, black pawn at e4 and white pawn at f4. White knight at a3 and white pawn at h3. White rook at a2, white pawn at d2, white knight at e2 and white pawn at g2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 13. White to move.