1n2kb1r/rb2p1np/1p6/p1p3N1/2Pp1PqP/P2P3N/1P1BBP2/1R1QK1R1 w k - 0 23
FEN state: 1n2kb1r/rb2p1np/1p6/p1p3N1/2Pp1PqP/P2P3N/1P1BBP2/1R1QK1R1 w k - 0 23 ; Best move: e2g4
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black bishop at b7, black pawn at e7, black knight at g7 and black pawn at h7. Black pawn at b6. Black pawn at a5, black pawn at c5 and white knight at g5. White pawn at c4, black pawn at d4, white pawn at f4, black queen at g4 and white pawn at h4. White pawn at a3, white pawn at d3 and white knight at h3. White pawn at b2, white bishop at d2, white bishop at e2 and white pawn at f2. White rook at b1, white queen at d1, white king at e1 and white rook at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 23. White to move.