rnb1k1nr/2p2p2/1p3q1b/3pp1N1/1p4pp/B4P2/P1PPP1PP/1R1QKBNR w Kkq - 0 13
FEN state: rnb1k1nr/2p2p2/1p3q1b/3pp1N1/1p4pp/B4P2/P1PPP1PP/1R1QKBNR w Kkq - 0 13 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at c7 and black pawn at f7. Black pawn at b6, black queen at f6 and black bishop at h6. Black pawn at d5, black pawn at e5 and white knight at g5. Black pawn at b4, black pawn at g4 and black pawn at h4. White bishop at a3 and white pawn at f3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at b1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.