1rb1k2r/ppp2p2/4p2n/P5pp/2Pqp3/b6P/P1KP1PP1/1RBQ1BNR w k - 0 13
FEN state: 1rb1k2r/ppp2p2/4p2n/P5pp/2Pqp3/b6P/P1KP1PP1/1RBQ1BNR w k - 0 13 ; Best move: c1a3
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7 and black pawn at f7. Black pawn at e6 and black knight at h6. White pawn at a5, black pawn at g5 and black pawn at h5. White pawn at c4, black queen at d4 and black pawn at e4. Black bishop at a3 and white pawn at h3. White pawn at a2, white king at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 13. White to move.