r1b1k2N/q2n2p1/1p1b1n1p/p2ppp2/P1P1NP2/BP1P4/4PN1P/RQ2KB1R w KQ - 2 23
FEN state: r1b1k2N/q2n2p1/1p1b1n1p/p2ppp2/P1P1NP2/BP1P4/4PN1P/RQ2KB1R w KQ - 2 23 ; Best move: e4d6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and white knight at h8. Black queen at a7, black knight at d7 and black pawn at g7. Black pawn at b6, black bishop at d6, black knight at f6 and black pawn at h6. Black pawn at a5, black pawn at d5, black pawn at e5 and black pawn at f5. White pawn at a4, white pawn at c4, white knight at e4 and white pawn at f4. White bishop at a3, white pawn at b3 and white pawn at d3. White pawn at e2, white knight at f2 and white pawn at h2. White rook at a1, white queen at b1, 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 2. Full move number is 23. White to move.