rnbr2k1/1p1p1ppp/2p1p2n/pq4P1/Pb1P4/2PQPN1P/1PK2P2/RNB2B1R w - - 1 13
FEN state: rnbr2k1/1p1p1ppp/2p1p2n/pq4P1/Pb1P4/2PQPN1P/1PK2P2/RNB2B1R w - - 1 13 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black rook at d8 and black king at g8. Black pawn at b7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at c6, black pawn at e6 and black knight at h6. Black pawn at a5, black queen at b5 and white pawn at g5. White pawn at a4, black bishop at b4 and white pawn at d4. White pawn at c3, white queen at d3, white pawn at e3, white knight at f3 and white pawn at h3. White pawn at b2, white king at c2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 13. White to move.