r1b2b1r/pp2n2p/4kp2/2pp2p1/2Pn1PP1/7N/q2PB2P/R1B1K2R w KQ - 1 20
FEN state: r1b2b1r/pp2n2p/4kp2/2pp2p1/2Pn1PP1/7N/q2PB2P/R1B1K2R w KQ - 1 20 ; Best move: a1a2
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 knight at e7 and black pawn at h7. Black king at e6 and black pawn at f6. Black pawn at c5, black pawn at d5 and black pawn at g5. White pawn at c4, black knight at d4, white pawn at f4 and white pawn at g4. White knight at h3. Black queen at a2, white pawn at d2, white bishop at e2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 20. White to move.