r1b2b1r/pp1pkp1p/n1q1p3/2pP4/1PPn1p1N/B3P3/P2N2PP/R1Q1KB1R w KQ - 5 13
FEN state: r1b2b1r/pp1pkp1p/n1q1p3/2pP4/1PPn1p1N/B3P3/P2N2PP/R1Q1KB1R w KQ - 5 13 ; Best move: d5c6
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black king at e7, black pawn at f7 and black pawn at h7. Black knight at a6, black queen at c6 and black pawn at e6. Black pawn at c5 and white pawn at d5. White pawn at b4, white pawn at c4, black knight at d4, black pawn at f4 and white knight at h4. White bishop at a3 and white pawn at e3. White pawn at a2, white knight at d2, white pawn at g2 and white pawn at h2. White rook at a1, white queen 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 5. Full move number is 13. White to move.