r3k1n1/p4N2/np2b2P/1p2pp2/1bPpPPP1/1P5p/q2P4/RNBQ1KR1 w q - 0 22
FEN state: r3k1n1/p4N2/np2b2P/1p2pp2/1bPpPPP1/1P5p/q2P4/RNBQ1KR1 w q - 0 22 ; Best move: a1a2
The current state of the chess board is: Black rook at a8, black king at e8 and black knight at g8. Black pawn at a7 and white knight at f7. Black knight at a6, black pawn at b6, black bishop at e6 and white pawn at h6. Black pawn at b5, black pawn at e5 and black pawn at f5. Black bishop at b4, white pawn at c4, black pawn at d4, white pawn at e4, white pawn at f4 and white pawn at g4. White pawn at b3 and black pawn at h3. Black queen at a2 and white pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at f1 and white rook at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 22. White to move.