rn2k2r/p1q1n2p/bppp1pp1/1P2p3/1bP1P3/2B2NPP/P2P1P2/RNQ1KB1R w KQkq - 1 13
FEN state: rn2k2r/p1q1n2p/bppp1pp1/1P2p3/1bP1P3/2B2NPP/P2P1P2/RNQ1KB1R w KQkq - 1 13 ; Best move: c3b4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black queen at c7, black knight at e7 and black pawn at h7. Black bishop at a6, black pawn at b6, black pawn at c6, black pawn at d6, black pawn at f6 and black pawn at g6. White pawn at b5 and black pawn at e5. Black bishop at b4, white pawn at c4 and white pawn at e4. White bishop at c3, white knight at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white queen at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 13. White to move.