r2q1bnr/p3p3/1P2bppp/2kp2N1/5P2/n1PP2P1/1B2P2P/RNQ1KB1R w KQ - 4 20
FEN state: r2q1bnr/p3p3/1P2bppp/2kp2N1/5P2/n1PP2P1/1B2P2P/RNQ1KB1R w KQ - 4 20 ; Best move: g5e6
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at e7. White pawn at b6, black bishop at e6, black pawn at f6, black pawn at g6 and black pawn at h6. Black king at c5, black pawn at d5 and white knight at g5. White pawn at f4. Black knight at a3, white pawn at c3, white pawn at d3 and white pawn at g3. White bishop at b2, white pawn at e2 and white pawn at h2. 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 and white queenside castles are available. Half move number is 4. Full move number is 20. White to move.