rnq2k1r/p1pp3p/1p1b3n/1b2p1p1/Q1PPpPP1/P4N1P/1P2P3/R1B1KB1R w KQ - 0 13
FEN state: rnq2k1r/p1pp3p/1p1b3n/1b2p1p1/Q1PPpPP1/P4N1P/1P2P3/R1B1KB1R w KQ - 0 13 ; Best move: c4b5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at c8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7 and black pawn at h7. Black pawn at b6, black bishop at d6 and black knight at h6. Black bishop at b5, black pawn at e5 and black pawn at g5. White queen at a4, white pawn at c4, white pawn at d4, black pawn at e4, white pawn at f4 and white pawn at g4. White pawn at a3, white knight at f3 and white pawn at h3. White pawn at b2 and white pawn at e2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 13. White to move.